The probability distribution does not add up to 1.0, in other words.
What is meant by probability?Probability, in its simplest form, gauges the likelihood that something will happen. When we are unsure of how an event will turn out, we might talk about the likelihood of different outcomes.The study of events susceptible to probability is known as statistics. The probability is frequently stated as a ratio between the total number of outcomes in the sample space and the number of positive outcomes.This is how it is written: Number of Favorable Outcomes P(E) = Probability of an Event (Sample space).Probability can be divided into four main categories: axiomatic, axiomatic, classical, and empirical. The area of mathematics known as probability studies the likelihood that a random event will occur.The complete question is:
A researcher records the number of mistakes made during a memory skills task. He finds that the probability that participants in this study made 0 mistakes is p = .22; made 1 mistake is p = .30; made 2 mistakes is p = .16; made 3 mistakes is p = .12; and made 4 or more mistakes is p = .25. Is this probability distribution accurate?
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Answer:
It is not accurate
Step-by-step explanation:
If the complete question is:
A researcher records the number of mistakes made during a memory skills task. He finds that the probability that participants in this study made 0 mistakes is p = .22; made 1 mistake is p = .30; made 2 mistakes is p = .16; made 3 mistakes is p = .12; and made 4 or more mistakes is p = .25. Is this probability distribution accurate?
THEN:
To determine whether the probability distribution is accurate, we need to check two conditions:
The sum of the probabilities should be equal to 1.
All probabilities should be between 0 and 1.
Let's check these conditions:
Sum of probabilities:
p(0) + p(1) + p(2) + p(3) + p(4 or more) = 0.22 + 0.30 + 0.16 + 0.12 + 0.25 = 1.05
The sum of the probabilities is greater than 1, which violates the first condition. Therefore, this is not a valid probability distribution.
All probabilities should be between 0 and 1:
The probability of making 0, 1, 2, or 3 mistakes are all between 0 and 1, so they satisfy this condition.
However, the probability of making 4 or more mistakes is 0.25, which is a valid probability, but it implies that the probability of making 0, 1, 2, or 3 mistakes is negative, which is impossible. Therefore, this distribution does not satisfy this condition.
Since this probability distribution violates both conditions for a valid probability distribution, it is not accurate, and the researcher should revise their data.
A cargo ship contains a total of 16,770
containers that are evenly placed in 65
rows. How many containers are in each row?
ANSWER AND I'LL MARK U BRAINLIEST PLS.
Answer:258 containers
Step-by-step explanation:
Simply,
16770/65=258.
Hope this helps :]
40 books are increased in the ratio 5:4 the new number of books are?
Answer:
50
Step-by-step explanation:
4x10=40.
5x10=50
Answer:
Step-by-step explanation:
To increase a quantity in a given ratio, we can follow these steps:
Step 1: Find the total increase in the quantity.
Suppose the original number of books is "b". The total increase in the number of books is 40, so:
b + 40 = b
Step 2: Divide the total increase into two parts in the given ratio.
In this case, the ratio is 5:4, so we can divide the increase of 40 into two parts in the ratio 5:4. Let's call the first part "x". Then, the second part is 40 - x.
The first part (5x) is 5 times the second part (4x), so:
5x = 4(40 - x)
Step 3: Solve for x.
Expanding the right side:
5x = 160 - 4x
Adding 4x to both sides:
9x = 160
Dividing both sides by 9:
x = 40/9
Step 4: Find the new number of books.
The first part of the increase (x) is 40/9, and the second part (40 - x) is 40 - 40/9 = 40 * 9/9 - 40/9 = 40 * 8/9. The new number of books is the original number plus the two parts of the increase:
b + 40/9 + 40 * 8/9 = b + 40
So, the new number of books is b + 40.
1. Takis Machine Shop paid a base rate for the state's workers' compensation insurance of $9.40 per $100 paid in wages. Takis has a monthly payroll of $53,896.84. After reevaluating the frequency and severity of accidents at machine shops, the state increased the base rate to $10.40 per $100 paid in wages. Assuming the monthly payroll stays the same, how much more will Takis pay each year for state workers' compensation insurance in dollars. Round to the nearest hundredth of a percent.
2. The Madison County tax assessor determined the market value of a home to be $590,000. The rate of assessment in Madison County is 40% of market value. The tax rate is 42.73 mills. Calculate the real estate tax in dollars. Round to the nearest hundredth of a percent.
3. Vanesa Vasquez contributes $2,500 per year to her Roth IRA, an ordinary annuity, starting at age 35. If she earns 7.4% annual interest compounded annually, what is the fair market value of her Roth IRA at age 65? How much interest will she have earned in dollars? Round to the nearest hundredth of a percent.
4. Marty and Roslyn Seymour purchase a GNMA Mortgage issue bond selling at a premium of 103.7% of its $10,000 face value. The bonds are selling at a premium because they have an annual yield of 8.75%. Find the interest rate as a percent? Round to the nearest hundredth of a percent.
5. Ricardo Ramirez took out a single-payment loan for $2,500 at 7.8% ordinary interest to pay his federal income tax bill. If the maturity value of the loan was $2,548.75, in how many days would Ricardo have to pay back the loan?
Answer: do you need me to answer all or anthor example.
Step-by-step explanation:
I will answer
Which precedents did the u. S. Constitution establish for other governments? select all that apply.
if car traveling 40 mph takes 30 feet to stop, how many seconds will it take to stop? 
Answer:
To find the time it takes a car traveling at 40 mph to stop after covering a distance of 30 feet, we need to use the formula for distance, speed, and time, which is:
distance = speed * time
Rearranging the formula, we get:
time = distance / speed
Since the speed is in miles per hour (mph), we need to convert it to feet per second (fps). One mph is equivalent to 1.47 fps, so 40 mph is equivalent to 40 * 1.47 = 58.8 fps.
Now we can plug in the values for distance and speed into the formula:
time = 30 feet / 58.8 fps
time = 0.5104 seconds
Rounding to the nearest second, we get:
time = 0.51 seconds
So, it would take the car approximately 0.51 seconds to stop after traveling 40 mph.
Step-by-step explanation:
Algebra 2, Exponental Funtction.
The numeric value of the exponential function at x = 19.5 is given as follows:
f(19.5) = 178.41.
How to model an exponential function?The standard definition of an exponential function is given as follows:
y = ab^x.
In which:
a is the initial value, the value of y when x = 0.b is the rate of change.Considering that f(4.5) = 25 and f(14) = 85, the two equations are given as follows:
ab^(4.5) = 25.ab^(14) = 85.Hence:
a = 25b^(-4.5).
Then the value of b is obtained as follows:
25b^(-4.5)b^(14) = 85.
b^(9.5) = 85/25
b = (85/25)^(1/9.5)
b = 1.14.
Then the value of a is obtained as follows:
a = 25 x (1.14)^(-4.5)
a = 13.86.
Then the function is defined as follows:
y = 13.86(1.14)^x.
At x = 19.5, the numeric value is given as follows:
y = 13.86(1.14)^19.5
y = 178.41.
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(c) 10:35 f the foll ing ratio
The ratio 10:35 can be simplified to 2:7.
What is a Ratio?
A ratio in mathematics demonstrates how many times one number is present in another.
For instance, if a dish of fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six.
Similarly, the ratio of oranges to the overall amount of fruit is 8:14, while the ratio of lemons to oranges is 6:8.
The ratio 10:35 can be simplified to 2:7.
To simplify a ratio, you can divide both values by the greatest common factor. In this case, the greatest common factor of 10 and 35 is 5, so 10 divided by 5 is 2, and 35 divided by 5 is 7.
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Simply the following ratio 10:35
Can somebody help awnser these questions
A. The amount deducted from Frank's bank every years is $59700
B. The salary of the tax will be $99500.
C. Tax deducted from her new pay is $39800
What is simple interest?A quick and simple way to figure out interest on money is to use the simple interest technique, which adds interest at the same rate for each time cycle and always to the initial principal amount. Any bank where we deposit our funds will pay us interest on our investment. One of the different types of interest charged by banks is simple interest. Now, before exploring the idea of basic curiosity in further detail,
a. 79600 - (79600 × 25%)
$59700
b. The formula for simple interest is:
S = p*t*r/100
p = 79600
r = 25%
t=1
S = 79600*1*25/100 = 19900
New salary = 79600 + 19900
= $99500
Hence the salary of the tax will be $99500.
c. 99500 - 59700
= $39800
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What is the area of this parallelogram?
A:60cm
B:66
C:72
D:132
The area of the given parallelogram is 12 cm².
What is Parallelogram?A parallelogram is defined as a special type of quadrilateral that has both pairs of opposite sides parallel and equal.
The formula to calculate the area of a parallelogram can thus be given as,
Area of parallelogram = b × h square units
where b is the length of the base and h is the height
According to the given parallelogram ABCD, we have
Length of the base b = 5 + 9 = 14 cm
The height h = 8 cm
Area of parallelogram = b × h
Area of parallelogram = 14 × 8
Area of parallelogram = 112 cm²
Thus, the area of the given parallelogram is 12 cm².
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The question seems incomplete, the missing figure has been attached below.
Mia bought five pounds of potatoes and sent a total of 3.65 for them
The cost of one pound of potato is 0.73 pounds.
What is Algebra ?The mathematical field of algebra assists in the depiction of problems or conditions as mathematical statements. It involves variables like x, y, z, and mathematical operations like addition, subtraction, multiplication, and division to form a meaningful mathematical expression.
Now in the given question , we have to find the cost of one pound of potato.
here we have to find the cost of one pound of potato mia bought.
she total spent $3.65 for them and bought five pounds of potatoes.
cost of one pound of potato
= [tex]\frac{total spent}{total bought} = \frac{3.65}{5} =0.73 pounds[/tex]
hence, cost of one pound of potato is 0.73 pounds.
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. One number is five more than the other. Their sum is 33. Find the numbers.
Answer:
14 and 19
Step-by-step explanation:
14+5=19
14+19=33
Miri and Sara are collecting bags of aluminum cans for a recycling drive. Miri collects 3 times as many bags of
cans as Sara. Miri collects 123 bags of cans. Which equation and solution represent the number of bags of cans,
s, Sara collects?
The equation and solution that represents the number of bags of cans of aluminum cans for recycling that Sara collects, given that Miri collects 3x cans as Sara, is x = 123/3, which is 41.
What is an equation?An equation is a mathematical statement showing that two or more mathematical expressions are equal or equivalent.
Mathematical expressions contain variables, constants, numbers, and values using mathematical operands.
Equations differ from mathematical expressions based on the use of the equation symbol (=).
The number of bags of aluminum cans collected by Sara = x
The number of bags of aluminum cans collected by Miri = 3x
3x = 123 bags
The equation representing the number of bags of cans Sara collects x = 123/3
x = 41 (123/3)
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A soccer field (football pitch) has a length of 105.1 m and a width of 67.1 m. Find the total area of the field in square meters (m2) and convert this measurement to square yards (yd2). Use the fact that 1 yard = 0.9144 m. Round your answer to the nearest whole number.
Answer:
Step-by-step explanation:
A = l x w
A = 105.1m x 67.1m
A = 7052.21m
Convert to yds.
7052.21 / 0.9144 = 7712.4
To the nearest whole, the area is 7712 yds2.
Marisa solved the equation -3 = 6x as shown: -3 = 6x x= -2 which statement is correct?
Answer:
The statement "x = -2" is correct. Marisa correctly solved the equation -3 = 6x by dividing both sides by 6 to find that x = -2.
Step-by-step explanation:
The cardiovascular system transports materials around the body, taking nutrients from the digestive system to the tissues, moving oxygen from the lungs to the cells, and taking wastes to the kidneys where they are filtered and excreted. What functions does the cardiovascular system share with the endoplasmic reticulum of the cell? select all that apply.
There are no shared functions between the cardiovascular system and the endoplasmic reticulum of the cell.
The endoplasmic reticulum is an organelle within cells that plays a role in protein synthesis, lipid metabolism, and other cellular processes. It does not transport materials around the body or filter wastes.
The endoplasmic reticulum is equipped with a complex network of pathways designed to meet the needs of the cell's secretory and integral membrane protein manufacturing processes. It also has adaptive responses prepared for the endoplasmic reticulum to rely on under stressful situations.
Because to the complexity and necessity of these pathways, a variety of conditions can result in a defective endoplasmic reticulum and a dysfunctional cell, which may advance disease.
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1 < (c - 1)^2 ≤ 36
What is the greatest integer solution to the inequality above?
Answer:
The greatest integer solution to the inequality 1 < (c - 1)^2 ≤ 36 is c = 6.
Step-by-step explanation:
y=-2x-5 solve algebraically
The graph of ordered pairs (0, -5), (1, -3), (2, -1), (3, 1) is given below.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation is y=2x-5.
Substitute x=0, 1, 2, 3, 4, ..... in the equation y=2x-5, we get
When x=0,
y=-5
When x=1,
y=-3
When x=2,
y=-1
When x=3
y=1
So, the ordered pair is (0, -5), (1, -3), (2, -1), (3, 1) and so on.
Therefore, the graph of ordered pairs (0, -5), (1, -3), (2, -1), (3, 1) is given below.
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Solve for x, will give brainliest
Answer:
2
Step-by-step explanation:
Line MN ≅ Line LK
Since Line MN ≅ Line LK, that means the diagonals must be congruent ∴ MK ≅ NL.
Now that we know MK ≅ NL, we can set them equal to each other.
MK = [tex]16[/tex]
NL = [tex]7x + 2[/tex]
[tex]16=7x+2\\14=7x\\2=x[/tex]
Therefore, 2 is your final answer.
Find the value of y to the nearest tenth.
6.4
6.0
7.5
8.0
Let's consider what the question asks for:
--> the length of 'y'
To solve:
--> we need to use trigonometry
--> let's determine which function to use based on the image given
below
--> (look at image attached)
Let's use angle with measure of 53:
--> the side with length of 'y' is adjacent to it
[tex]cos(53)=\dfrac{y}{10} \\\\y=10*cos(53)=6.02[/tex]
Thus the length of that particular side is about:
--> 6.0
Answer: 6.0
1. The Winston Tree Farm and Nursery has a base rate for the state's workers compensation insurance of $5.93 per $100.00 paid in wages. The monthly payroll for the nursery is $3,560. What is the monthly premium for workers compensation insurance in dollars? Round to the nearest hundredth of a percent.
2. Takis Machine Shop paid a base rate for the state's workers' compensation insurance of $9.40 per $100 paid in wages. Takis has a monthly payroll of $53,896.84. After reevaluating the frequency and severity of accidents at machine shops, the state increased the base rate to $10.40 per $100 paid in wages. Assuming the monthly payroll stays the same, how much more will Takis pay each year for state workers' compensation insurance in dollars. Round to the nearest hundredth of a percent.
3. The Madison County tax assessor determined the market value of a home to be $590,000. The rate of assessment in Madison County is 40% of market value. The tax rate is 42.73 mills. Calculate the real estate tax in dollars. Round to the nearest hundredth of a percent.
4. Vanesa Vasquez contributes $2,500 per year to her Roth IRA, an ordinary annuity, starting at age 35. If she earns 7.4% annual interest compounded annually, what is the fair market value of her Roth IRA at age 65? How much interest will she have earned in dollars? Round to the nearest hundredth of a percent.
5. Marty and Roslyn Seymour purchase a GNMA Mortgage issue bond selling at a premium of 103.7% of its $10,000 face value. The bonds are selling at a premium because they have an annual yield of 8.75%. Find the interest rate as a percent? Round to the nearest hundredth of a percent.
6. Ricardo Ramirez took out a single-payment loan for $2,500 at 7.8% ordinary interest to pay his federal income tax bill. If the maturity value of the loan was $2,548.75, in how many days would Ricardo have to pay back the loan?
Answer:
1. The monthly premium for workers' compensation insurance for the Winston Tree Farm and Nursery can be calculated as follows:
Monthly payroll: $3,560 Base rate: $5.93 per $100 Rate per $1,000: $5.93 * 10 = $59.30 Premium: $3,560 / 1,000 * $59.30 = $209.51
So, the monthly premium for workers' compensation insurance is $209.51.
2. The amount that Takis Machine Shop will pay each year for workers' compensation insurance can be calculated as follows:
Old base rate: $9.40 per $100 New base rate: $10.40 per $100 Monthly payroll: $53,896.84 Old rate per $1,000: $9.40 * 10 = $94.00 New rate per $1,000: $10.40 * 10 = $104.00 Old premium: $53,896.84 / 1,000 * $94.00 = $5,045.65 New premium: $53,896.84 / 1,000 * $104.00 = $5,610.71 Increase in premium: $5,610.71 - $5,045.65 = $565.06
So, Takis Machine Shop will pay an additional $565.06 each year for workers' compensation insurance.
3.The real estate tax for the home in Madison County can be calculated as follows:
Market value: $590,000 Rate of assessment: 40% of market value = $590,000 * 0.4 = $236,000 Tax rate: 42.73 mills = 0.04273 Tax: $236,000 * 0.04273 = $10,130.68
So, the real estate tax for the home in Madison County is $10,130.68.
4. The fair market value of Vanesa Vasquez's Roth IRA at age 65 can be calculated as follows:
Contribution: $2,500 Years of contribution: 65 - 35 = 30 Annual interest rate: 7.4% Future value: $2,500 * (1 + 0.074)^30 = $29,706.74
So, the fair market value of her Roth IRA at age 65 is $29,706.74.
The amount of interest earned can be calculated as follows:
Future value: $29,706.74 Present value: $2,500 Interest earned: $29,706.74 - $2,500 = $27,206.74
So, Vanesa Vasquez will have earned $27,206.74 in interest.
5. The interest rate as a percent for the GNMA Mortgage issue bond can be calculated as follows:
Face value: $10,000 Selling price: $10,000 * 103.7% = $10,370.00 Yield: 8.75% Price: $10,370.00 Interest: $10,370.00 - $10,000 = $370.00 Interest rate: ($370 / $10,000) * (12 / 1) = 0.09375 = 9.375%
So, the interest rate for the GNMA Mortgage issue bond is 9.375%, rounded to the nearest hundredth of a percent.
6. Let's call the number of days that Ricardo has to pay back the loan "d".
The interest on the loan can be calculated using the formula:
I = P * r * t
where I is the interest, P is the principal (the amount borrowed, $2,500), r is the annual interest rate as a decimal (7.8% as a decimal is 0.078), and t is the time in years (d divided by 365).
So we have:
I = $2,500 * 0.078 * (d / 365)
We also know that the maturity value of the loan is the sum of the principal and the interest:
$2,548.75 = $2,500 + I
So we can substitute for I:
$2,548.75 = $2,500 + $2,500 * 0.078 * (d / 365)
Expanding the right-hand side:
$2,548.75 = $2,500 + $194.00 * (d / 365)
And solving for d:
d = 365 * ($2,548.75 - $2,500) / $194.00
d = 365 * ($48.75) / $194.00
d = 365 * 0.25191780821917808
d = 91.37 days
So Ricardo would have to pay back the loan in 91.37 days.
Step-by-step explanation:
Please help bro I need help solving this polynomial and terms
The expression represents a degree five polynomial with four terms. The constant term is -6, the leading term is (1/2)x⁵, and the leading coefficient is 1/2.
What is a polynomialA polynomial expression is an algebraic expression made up of variables and coefficients, combined using only the operations of addition, subtraction, and multiplication. The variables are raised to a power, which is a non-negative integer, and the coefficients are real numbers. A polynomial can have any number of terms, but it always has a degree, which is the highest power of the variables in the expression.
For the polynomial expression, (1/2)x⁵ - 6 - x⁴ - 5x⁴
There are 4 terms which are: (1/2)x⁵, - 6, - x⁴, and - 5x⁴.
The constant term is -6
The leading term is (1/2)x⁵
The coefficient of the leading term is 1/2.
In conclusion, the expression represents a degree five polynomial with four terms. The constant term is -6, the leading term is (1/2)x⁵, and the leading coefficient is 1/2.
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Answer:
quadrinomial, 4, -6, 1/2x^5, 1/2
Step-by-step explanation:
quadrinomials are polynomials with 4 terms
constant is the number with no variable
leading term is the term at the beginning
leading coefficient is the number at the beginning
Quadratic Expressions:Question 1
Which is a factor of x²+ 7x + 10?
Select one:
a x-5
bx-1
cx+5
dx+1
Answer:
Option C. (x + 5)
Step-by-step explanation:
This quadratic equation can either be solved using the quadratic formula or be factorised using The Double Bubble Method.
Double Bubble Method:
After listing the different pairs of factors 10, the pair (that would add together to give 7) are 2 and 5. These two factors will be used to rewrite +7x:
[tex]x^{2} + 2x + 5x + 10[/tex]
Factorization by grouping (i.e factorising each separate group sharing a common factor) will then be applied:
[tex]= x(x + 2) + 5(x + 2)[/tex]
The common factor, which is the (x + 2) expression, will be extracted:
[tex]= (x + 2)(x + 5)[/tex]
∴ [tex]x^{2} + 7x + 10[/tex] can be factorised to [tex](x + 2)(x + 5)[/tex]
It is observed that a factor of the given quadratic equation is x + 5
∴Option C
Which of the following strategies will help you gain instructional control? Behavior tech
Gaining instructional control is an important aspect of teaching and behavior management.
What is instructional control?Instructional control is a term used in behavior analysis to describe a situation in which a teacher or other instructional agent has established the conditions necessary for effective teaching to occur.
Here are some strategies that can help you gain instructional control:
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A bicycle wheel has a radius of 225 mm and has 25 equally spaced spokes. What is the approximate arc length, rounded to the nearest hundredth, between each spoke? Use 3.14 for π. Show your work.
The approximate arc length is 56.52mm.
What is an arc length?
The distance between two places along a segment of a curve is known as the arc length. Curve rectification is the process of measuring the length of an irregular arc section by simulating it with connected line segments. There are a finite number of segments in the rectification of a rectifiable curve.
Here, we have
Given: A bicycle wheel has a radius of 225 mm and has 25 equally spaced spokes.
To solve this question, we have to use the formula of the length of an arc which is given as
L = θ/360 * 2πr
To find the angle between each spoke, let's divide 360 by 25
θ = 360/25
θ = 14.4
Now that we have the value of the angle, let's substitute it and solve for the length of the arc.
L = 14.4/360 * 2(22/7)(225)
L = 56.52mm
Hence, the approximate arc length is 56.52mm.
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Please help. I'll give brainliest.
351 and 1053 are the next terms of geometric sequence 13, -39, 117...
What is Sequence?Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.
The given series is 13, -39, 117..
We need to find the fourth and fifth terms of the sequence.
The given sequence is geometric sequence.
Geometric sequence is a sequence in which each term is found by multiplying the preceding term by the same value.
The general term of sequence [tex]a_{n} =ar^{n-1}[/tex]
r is the common ratio
r=-39/13
=-3
a=13 first term
a₄=13(-3)³
a₄=13(-27)
Fourth term is 351.
Now plug in n as 5 to find 5th term.
a₅=13(-3)⁴
a₅=1053
Hence, the next two terms of geometric sequence are 351 and 1053.
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Suppose that Jenny, a college admissions officer for the Department of Mathematics at Smalltown University, is reading applications submitted by prospective students. The president of Smalltown University is weary about admitting too many domestic students and not enough international students. However, the applications are blinded so Jenny cannot see if an applicant is a domestic student or international student. Jenny is instructed by the president to admit exactly 20 applicants to the Department of Mathematics in a given year. Suppose that 38 domestic students and 42 international students applied to the Department of Mathematics at Smalltown University this year, and suppose that there is no difference in the qualifications of domestic and international students applying to Smalltown University.
Let represent the number of domestic applicants that Jenny selects this year. Calculate the mean, , and standard deviation, , of .
Please give the exact value for the mean and round your standard deviation to the nearest three decimal places.
The mean number of domestic applicants that Jenny selects is exactly 9.5, and the standard deviation is approximately 1.932
What is the standard deviation?Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.
This is a problem involving a hypergeometric distribution since we have a fixed population (all applicants), two groups within the population (domestic and international students), and a fixed number of samples (20 students to be admitted).
Let X be the number of domestic applicants that Jenny selects this year. Then X follows a hypergeometric distribution with parameters N = 80 (total number of applicants), K = 38 (number of domestic applicants), and n = 20 (number of students to be admitted).
The mean of X is given by μ = nK/N, and the standard deviation of X is given by,
σ = √(nK(N-K)/(N²(N-1))).
Substituting the given values, we get:
μ = (20 x 38)/80 = 9.5
σ = √(203842/(80² x 79)) ≈ 1.932
Therefore, the mean number of domestic applicants that Jenny selects is exactly 9.5, and the standard deviation is approximately 1.932.
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Solve the equations for x
Answer:
Step-by-step explanation:
5=cx-ax=x(c-a)
x(c-a)/5=1
(c-a)/5=1/x
x=5/(c-a)
please help me answer this :((
a. The number of pizzas the pizzeria must sell today for employees to receive the bonus will be 78 pizza.
b. The percent decrease in the number of pizzas sold today compared to yesterday is 7.69%.
How to calculate the valuea) To determine the number of pizzas the pizzeria must sell today for employees to receive the bonus, we need to calculate 20% of the 65 pizzas sold yesterday. 20% of 65 pizzas is 0.20 * 65 = 13. So, the pizzeria must sell 65 + 13 = 78 pizzas today for employees to receive the bonus.
b) To calculate the percent increase or decrease in the number of pizzas sold today compared to yesterday, we need to divide the difference between the two days' sales by the number of pizzas sold yesterday and multiply by 100.
((60 - 65) / 65) * 100
= (-5 / 65) * 100
= -7.69%
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A hot-air balloon, headed due east at an average speed of 15 miles per hour at a constant altitude of 95 feet, passes over an intersection (see
the figure). Find an expression for its distance d (measured in feet) from the intersection t seconds later.
The expression for its distance d (measured in feet) from the intersection t seconds later is d = x + 79200 t (feet)
Finding expression for distanceSince the balloon is moving due east, we only need to consider its horizontal motion, ignoring its vertical motion at a constant altitude of 95 feet.
Let's call the initial distance of the balloon from the intersection x. The distance of the balloon from the intersection t seconds later can be found using the formula for distance traveled at a constant speed:
d = x + vt
where v is the speed of the balloon (15 miles per hour) and t is the time elapsed (in hours). To convert the speed from miles per hour to feet per second, we can multiply by the conversion factor of 5280 feet per mile:
d = x + (15 miles/hour) * (5280 feet/mile) * (t hours)
d = x + (15 * 5280) t feet
d = x + 79200 t feet
So the expression for the distance of the balloon from the intersection t seconds later is:
d = x + 79200 t (feet)
Note: In this expression, x represents the initial distance of the balloon from the intersection, which is unknown.
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rectangular fountain has a length of L meters and a width of 3 meters less than its length. How much
es it cost to border the outside of the fountain using 1-meter tiles that cost $4 each. HINT: draw a picture.
The expression that represents the cost to the border will be 16L - 8.
What is the perimeter of the rectangle?Let W be the rectangle's width and L its length.
The perimeter of the rectangle will be defined as the total length of all of its sides.
Perimeter of the rectangle = 2(L + W) units
A rectangular fountain has a length of L meters and a width of 3 meters less than its length. Then the equations are given as,
W = L - 3
The perimeter of the rectangle is given as,
P = 2(L + L - 3)
P = 2(2L - 3)
P = 4L - 6
The amount of money that is required for bordering the fountain is given as,
⇒ 4 × [4L - 6] + 4 × 4
⇒ 16L - 24 + 16
⇒ 16L - 8
The expression that represents the cost to the border will be 16L - 8.
And the diagram is given below.
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