Answer Option C
The point-slope form of the equation of the line is:
Where m is the slope and b is the intersection with the y-axis.
In the line , you can identify that:
The symbol of the inequality "" indicates that you must shade the region below the boundary line and for the symbols of inequalities "" and "" the line must be solid (Observe the graph attached).
Then the answer is the option C.
please mark me brainliest
Answer:
C
Step-by-step explanation:
Area A should be the shaded region instead of the region shaded on the graph.
In a regression equation (linear prediction rule), the "predicted score" for a person with a "predictor variable" score of 0 is 7. In this scenario, what is the "regression constant"?
The required value of "regression constant" is 7.
What is regression equation?Y = a + b X + e is the formula for the regression equation. The dependent variable (Y), which is being predicted or explained, has a value of Y. a, or Alpha, is a constant; it equals the value of Y when the value of X is 0, and b, or Beta, is a coefficient of X; it determines how much Y varies for each unit change in X and determines the slope of the regression line.
According o question:In a linear regression equation, the regression constant (also called the intercept) represents the predicted score when the predictor variable has a value of 0. In this scenario, the predicted score for a person with a predictor variable score of 0 is 7.
Therefore, the regression constant is 7.
The regression constant is usually combined with the regression coefficient of the predictor variable to form the complete regression equation, which is used to predict scores for individuals with different values of the predictor variable.
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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
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)
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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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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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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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.
(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
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.
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Last year at a certain high school, there were 100 boys on the honor roll and 80 girls on the honor roll. This year, the number of boys on the honor roll decreased by 2% and the number of girls on the honor roll decreased by 10%. By what percentage did the total number of students on the honor roll decrease ? Round your answer to the nearest tenth (if necessary ).
Answer:
5.6%
Step-by-step explanation:
2/100 x 100 = 2
100-2 = 98 Boys on new Honor Roll
1/10 x 80 = 8
80-8 = 72 Girls on new Honor roll
180 Original Roll
170 On new Roll
x/100 x 180 = 170
x/100 = 17/18
x = 1700/18
x = 94.4444444
Round 94.4
5.6 percent decrease.
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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In the diagram, $ABCD$ABCD is a parallelogram. Which congruence theorem(s) can you use to show that $\triangle AED\ \cong\ \triangle CEB$△AED ≅ △CEB ? Select all that apply. Parallelogram A B C D is drawn with diagonals intersecting at point E.
Answer:
you are to use patagorious theory
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.
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.
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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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:
please help as quickly as possible!
On solving the provided question we can say that the quadratic equation is 3x²+15x+9=0
What is quadratic equation ?A quadratic equation is x ax2+bx+c=0, which is a quadratic polynomial in a single variable. a 0. The Fundamental Theorem of Algebra ensures that it has at least one solution since this polynomial is of second order. Solutions may be simple or complicated. An equation that is quadratic is a quadratic equation. This indicates that it has at least one word that has to be squared. The formula "ax2 + bx + c = 0" is one of the often used solutions for quadratic equations. where are numerical coefficients or constants a, b, and c. where the variable "X" is unidentified.
the quadratic equation is 3x²+15x+9=0
by Shridhara Charya formula method, we have
x=−0.697224
x=−4.30278
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Which precedents did the u. S. Constitution establish for other governments? select all that apply.
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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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
Car = V-8 sedan
Year driven = third
Miles driven = 10,000
The depreciation for this vehicle using method 2 will be $
The depreciation of the vehicle at third year with miles driven 10,000 is $590.
What is depreciation cost?A fixed asset's depreciated cost is equal to its value less the total amount of accumulated depreciation that has been recorded against it.
The depreciated cost is used to calculate an asset's value after its useful life is over.
The depreciated cost helps organizations examine their capital spending patterns and their accounting technique.
The depreciated cost is also known as the "residual value," "net book value," or "changed cost base."
The depreciation cost per mile for the third year is given as 5.9 cents.
The miles driven = 10,000
The depreciation for the vehicle is:
(5.9)(10,000) = 59000 cents.
Converting into dollars:
59000/100 = $590.
Hence, the depreciation of the vehicle at third year with miles driven 10,000 is $590.
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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:
statements about -27 that are true
The statements about the number -27 that are true are given as follows:
-27 is an integer number.-27 is a rational number.What are rational and irrational numbers?Rational numbers are numbers that can be represented by fractions, such as numbers that have no decimal parts, or numbers in which the decimal parts are terminating or repeating.
Irrational numbers are numbers that cannot be represented by fractions, being non-terminating and non-repeating decimals, such as non-exact square roots.
Integer numbers are numbers that have no decimal part, hence -27 is an example of an integer number, which are also rational numbers.
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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
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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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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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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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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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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