The total change in the car's speed during that time is 1500 per hour
What is meant by mathematical expression ?The difference is that expressions, which are essentially mathematical "phrases," do not contain an equal sign. Equations have an equal sign and demonstrate that two mathematical expressions are equivalent. An algebraic equation is 2x + b = 14, whereas 2x + b is an algebraic expression.
One of the three main types of algebraic expressions is the monomial expression. Binary Expression Expression of a polynomial.
In the mathematics curriculum and in mathematics in general, algebraic expressions are crucial. Students must be proficient in computations and the manipulation of algebraic expressions in order to advance and perform well in mathematics. They must also be able to read and write expressions.
Given ,
total change in car =300× 2
= 1500 per hour
Therefore the total change in the car's speed is 1500 per hour
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h(x) = |x + 10|, find h(-17).
Work Shown:
h(x) = |x+10|
h(-17) = |-17+10|
h(-17) = |-7|
h(-17) = 7
A country has a goal to build 12,000 bus stop shelters in 48 months if the country builds 215+ shelters each month will it reach at school explain one way to estimate the answer
If it reaches 250 bus stop shelters per month, then only the country can achieve their goal of 12000 bus stop shelters in 48 months.
Given,
The number of bus stop shelters a Country should built = 12,000
Time period for achieving the goal = 48 months
The average bus stop shelters the country can build in a month = more than 215
We have to explain that if they follow the above given format, will they achieve the goal in 48 months.
We can find it by using division operation;
Lets see;
Number of bus stop shelters they should build in one month = 12000/48 = 250
Here,
They are building more than 215 bus stop shelters per month.
If it reaches 250 bus stop shelters per month, then only the country can achieve their goal of 12000 bus stop shelters in 48 months.
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E = mc^2 True or False question
Answer:
False.
Step-by-step explanation:
E = mc² shows the relationship between mass and energy.
Find the Difference.
3.) 99-5.87
Answer:
93.13
Step-by-step explanation:
8 9 10 This is to show the work
99.00
- 5.87
------------
93.13
Gina Wilson unit 4 linear equations Homework 2 Slope intercept and standard form
All the answers to the given questions are mentioned below -
What is the general equation of a Straight line?The general equation of a straight line is -
[y] = [m]x + [c]
where -
[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.
The equation of a straight line can be also written as -
Ax + By + C = 0
By = - Ax - C
y = (- A/B)x - (C/A)
Given are six graphs as shown in the image.
PART [1]The equation of graph [1] -
m = (- 2 - 4)/(2 - 0)
m = -6/2
m = -3
Equation : y = -3x + 4
The equation of graph [2] -
m = (0 + 1)/(2.5 - 0)
m = 1/2.5
m = 10/25
m = 2/5
Equation : y = 2x/5 - 1
The equation of graph [3] -
Equation : y = 4
The equation of graph [4] -
Equation : x = 2
PART - [2][1] : 2x - y = - 7
y = 2x + 7
[2] : 5x + 3y = 12
3y = -5x + 12
y = -5x/2 + 4
[3] : x - y = 1
y = x - 1
[4] : x - 3y = - 15
3y = x + 15
y = x/3 + 5
[5] : 8x - 10y = 20
8x - 20 = 10y
y = 4x/5 - 2
[6] : 14x + 6y = 36
6y = -14x + 36
y = -7x/3 + 6
Therefore, all the answers to the given questions are mentioned above.
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[REFER TO IMAGE FOR QUESTION]
There are 35 tickets in a bag and the ratio of winning tickets to losing tickets is 1 to 4. How many of each kind of ticket are in the
bag?
Number of winning tickets =7 and Number of losing tickets = 28. When there are 35 tickets in a bag and the ratio of winning tickets to losing tickets is 1:4
What is ratio?Comparing two amounts of the same units and determining the ratio tells us how much of one quantity is in the other. Two categories can be used to categorize ratios. Part to whole ratio is one, and part to part ratio is the other. The part-to-part ratio shows the relationship between two separate entities or groupings. For instance, a class has a 12:15 boy-to-girl ratio, whereas the part-to-whole ratio refers to the relationship between a particular group and the entire. For instance, five out of every ten people enjoy reading. As a result, the ratio of the part to the whole is 5: 10, meaning that 5 out of every 10 persons enjoy reading.Given: Total tickets = 35
The ratio of winning tickets to losing tickets = 1:4
Number of winning tickets = [tex]\frac{1}{1+4} *35[/tex]
[tex]\frac{1}{5} *35=7[/tex]
Number of losing tickets = [tex]\frac{4}{1+4} *35[/tex]
[tex]\frac{4}{5} *35[/tex]
4×7=28
Hence, Number of winning tickets =7 and Number of losing tickets = 28.
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If 2 sweaters cost $18.72, how much would 6 sweaters cost?
Answer:
£56.16
Step-by-step explanation:
do 2 divided by 18.72 which is 9.36 then do 9.36×6 which is 56.16
What is 2 sigma confidence interval?
Step-by-step explanation:
A two sigma confidence interval is created whenever our alternate hypothesis does not equal a value.
For example if
[tex]h_{o} = 0.36[/tex]
and
[tex]h _{a} ≠0.36[/tex]
We used a two sigma confidence interval because we are thinking a portion is either below 0.36 or above 0.36.
When solving these probability for the p value, multiply the inital result by 2 to get the p value
The 2 sigma confidence interval is a principle that states that a result will be considered significant if 95% of the population is two standards deviation from the average value.
What is the 2-sigma confidence interval?The two-sigma confidence level states that 95% of the values obtained in the results from a population should be within2 deviations from the mean. Anything below this acceptable percentage is not considered the 2-sigma confidence level.
If 68% of the score are within 1 standard deviation from the mean, then that will be considered the 1-sigma rule. If 99.7% of the score is 3 standard deviations from the mean then we can refer to that as the 3-sigma confidence interval.
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A pizzeria sells three sizes of pizza: small, medium, and large. The pizzas sell for $9, $13, and $15, respectively. One evening they sold 28 pizzas and received $320. If they sold 9 more small than large pizzas, how many of each size did they sell?
Answer:
Step-by-step explanation:
so if you find the quadratic formula of 3 and multiply it by 82 you get 16. Then if you add 16 and 9 you get 25 this means that they sold 67 large pizzas. Your welcome
(11 - 2i) - (9 - 8i)
What is the frequency of yellow
light with E= 3.4 x 10-19 J?
h=6.626 x 10-34 J. S
x 10²¹ Hz
[?] x 10⁰
Answer:
5.131 × 10¹⁴ Hz
Step-by-step explanation:
Planck relation
[tex]\large\boxed{E = hf}[/tex]
where:
E = Energy of the photon (J).h = Planck's constant (J · s).f = frequency of light produced (Hz).Given values:
E = 3.4 × 10⁻¹⁹ Jh = 6.626 × 10⁻³⁴ J · sSubstitute the given values into the formula and solve for f:
[tex]\implies 3.4 \times 10^{-19}=(6.626 \times 10^{-34})f[/tex]
[tex]\implies f=\dfrac{3.4 \times 10^{-19}}{6.626 \times 10^{-34}}[/tex]
[tex]\implies f=\dfrac{3.4}{6.626} \times \dfrac{10^{-19}}{10^{-34}}[/tex]
[tex]\implies f=0.5131\times 10^{(-19-(-34))}[/tex]
[tex]\implies f=0.5131 \times 10^{15}[/tex]
[tex]\implies f=5.131 \times 10^{14}[/tex]
A medical equipment industry manufactures X-ray machines. The unit cost C (the cost in dollars to make each X-ray machine) depends on the number of
machines made. If x machines are made, then the unit cost is given by the function C(x)=x²-440x+64,948. What is the minimum unit cost?
Do not round your answer.
I need assistance with this math assignment
Answer:
46.6 m/sec.
Step-by-step explanation:
The movie theater is offering a deal on Friday. Every 12th customer will receive a free movie ticket, and every 15th customer will receive a free small popcorn.
What customer will be the first to receive both a free movie ticket and a free small popcorn?
A.180th customer
B.120th customer
C.60th
D.3rd customer
Drag and drop the cards in order from least to greatest on the number line.
-10
1
- 31
1
0
8
14
218
I
816
9
The order of cards on number line are in main body.
What is number line?
In elementary arithmetic, number line could be a image of a graduated line that is visual illustration of the important numbers. each purpose of range|variety} line is assumed to correspond to a true number, and each complex number to a degree.
Main body:
According to question we need to arrange numbers in ascending order ,
so the order will be as
-31/ 3 = -11.33
-10
-9/8 = -1.125
0
1/4 = 0.25
1
9/8 = 1.125
8
hence the order is as -31/3< -10< -9/8 < 0< 1/4 < 1 < 9/8< 8
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Can i get help on these
Please notice that #1 there is boxes on them please dont count those or just dont mind them there not related
and number 2 is not answered yet it just shows that.
The expression that is similar to [tex]\frac{2^{3} . 2^{4} }{2^{12} }[/tex] is [tex]\frac{1}{2^{5} }[/tex]
What is indices?Index (indices) in Maths is the power or exponent which is raised to a number or a variable. For example, in number [tex]2^{4}[/tex], 4 is the index of 2. The plural form of index is indices. In algebra, we come across constants and variables. The constant is a value which cannot be changed.
In the expression [tex]\frac{2^{3} . 2^{4} }{2^{12} }[/tex] all the indices have a common base 2
From numerator [tex]2^{3}[/tex] x [tex]2^{4}[/tex] = [tex]2^{3 + 4}[/tex] which [tex]2^{7}[/tex]
so since the base at the numerator is same as that at the denominator we subtract their exponents
so that we have,
[tex]2^{7 - 12}[/tex] = [tex]2^{-5}[/tex]
which can further be written as [tex]\frac{1}{2^{5} }[/tex]
In conclusion the simplified form of the expression is [tex]\frac{1}{2^{5} }[/tex]
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Find the measure of each marked angle. Assume the lines are parallel
The value of x is 33
What other external angles are there?
The alternate exterior angle theorem states that when two parallel lines cross, the exterior angles formed on either side of the transversal are equal. The distance between two intersecting lines or surfaces at or around their meeting point is referred to as the angle.
Since (2x - 30°) and (x+3)° are alternate exterior angles, they will be equivalent to one another.
(2x - 30)° = (x+3)°
Separate all similar phrases, then determine the value of x:
(2x - 30)° = (x+3)°
2x - x = 33 + 3
x = 33
Consequently, x will have the value of 33.
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Name the property
if m = -2 then 8m = -16
Substitution property
Multiplication property
Transitive property
Division property
Answer:
Multiplication property
Step-by-step explanation:
Multiply each side by 8:
m=-2
m*8=8m
-2*8=-16
8m=-16
The linear function m = 200 − 50v represents the amount m (in dollars) of money that you have after buying v video games. a. Interpret the terms and coefficient in the equation. b. Find the domain of the function. Is the domain discrete or continuous? Explain. c. Graph the function using its domain.
a. The terms are
200 is to buy the games50 is what it cost for a gamev is the number of gamesm is the total amount on gamesb. The domain of the function is given as 1 ≤ x ≤ 4. The graph is a discrete graph
How to solve for the graphThe term in the linear function m = 200 − 50v interpreted as
200 = money set aside for buying video games
50 = cost per video game
v = number pf video games
m = total amount spent on video games
b. How to find the domain of the functionThe number refers to all the possible input values, this value as regard this context is when the money left for video game is finished.
the input value is v, the domain is solved as follows
200 - 50v = 0
50v = 200
v = 200/50
v = 4
The maximum number is 4 while the minimum is just above 0 or from 1 hence the domain is
1 ≤ x ≤ 4
the graph is attached
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Suppose the annual interest rate is r= 0.13. If you earn $27,000 next year, what is the approximate present value of this future income?
O $31,034
O $208
O $30,510
O $23,894
The approximate present value of this future income is $23,894.
What is interest?
Interest is a fee paid for borrowing money or other assets the amount borrowed is called the principal.
The interest is expressed as a percentage rate of the principal. for a given time interval.
What is percentage?
Percentages are essentially fractions where the denominator is 100.
What is Fraction?
A fraction is used to represent the portion/part of the whole thing. It represents the equal parts of the whole. A fraction has two parts, namely numerator and denominator. The number on the top is called the numerator, and the number on the bottom is called the denominator.
Formula of interest rate r is given by ;
Present value of future income [tex]= \frac{Income}{(1 + Interest\ rate)}[/tex]
Present value of future income [tex]= \frac{\$27000}{1+0.13}[/tex]
Present value of future income = $23,894
so, the option D is correct.
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Keddy and Miko had 1950 marbles altogether.
Keddy had 1032 fewer marbles than Miko.
How many marbles did Miko have?
Answer:
1491
Step-by-step explanation:
Based on the given conditions, formulate
Rearrange unknown terms to the left side of the equation
Calculate the sum or difference
Divide both sides of the equation by the coefficient of variable
Cross out the common factor:get the result
-1 1/4 times 3 1/2 do any of y’all now this in its simplest form
Answer:
The solution is -35/8
Step-by-step explanation:
[tex] \sf - 1 \frac{1}{4} \times 3 \frac{1}{2} \\ \\ = \sf - \frac{4 \times 1 + 1}{4} \times \frac{2 \times 3 + 1}{2} \\ \\ = \sf - \frac{4 + 1}{4} \times \frac{6 + 1}{2} \\ \\ = \sf - \frac{5}{4} \times \frac{7}{2} \\ \\ = \sf - \frac{5 \times 7}{4 \times 2} \\ \\ = \sf - \frac{35}{8} \\ \\ = \sf - 4 \frac{3}{8} [/tex]
Opera tickets sold for $7.50 on the main floor and $5 in the balcony. The total revenue was $3250, and there
were 100 more main floor tickets sold than balcony tickets. Find the number of tickets sold.
Answer
500 tickets were sold
Step-by-step explanation:
Since 100 main floor tickets were sold, and each cost $7.50, we multiply it by 100 which equals $750, then since revenue was $3250, we do $3250 - $750 = $2500. Now that we got the extra tickets taken out of the way, time to find the rest. First, we add the prices of both tickets together, $7.50 + $5 = $12.50, then divide it by the remaining revenue, $2500 divided by $12.50 = 200 tickets, so 200 of each ticket were sold, + 100 main floor tickets. So now we do 300 main floor tickets + 200 balcony tickets, which is 500 tickets in total. Maybe you didn't read this but that's alright :)
Enter the unknown value that makes this statement true. 20% of blank is 48
Answer:
240
Step-by-step explanation:
20%×5=100
48×5=240
Answer:
20% of 240 is 48.
Step-by-step explanation:
Forming the equation,
→ (x/100) × 20 = 48
Now the value of x will be,
→ (x/100) × 20 = 48
→ (20x/100) = 48
→ x/5 = 48
→ x = 48 × 5
→ [ x = 240 ]
Hence, the answer is 240.
Simplify the ratio [tex]\frac{8 ft}{12 in}[/tex] Use the conversion 12 in. = 1 ft.
A. [tex]\frac{8}{1}[/tex]
B. [tex]\frac{2}{3}[/tex]
C. [tex]\frac{1}{18}[/tex]
D. [tex]\frac{96}{12}[/tex]
The answer is A ([tex]\frac{8}{1}[/tex])!
The simplified form of the ratio using the conversion 12 in = 1 ft as required in the task content is; Choice A; 8/1.
What is the simplified form of the ratio as given in the task content?It follows from the task content that the simplified form of the ratio 8 ft / 12 in is to be determined.
Since the given ratio whose simplified form is to be determined is; 8 ft / 12 in.
However, recall that according to the conversion; 12 in = 1 ft.
On this note, 8 ft = 8 × 12 in.
Therefore, the equivalent ratio can be written as;
(8 × 12in) /12in.
The required simplified ratio is therefore; 8/1.
Ultimately, the correct answer choice is; Choice A; 8/1.
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Please help me on these two
they appear answered but their not.
1) The equivalent fraction is 27/8, so the correct option is A.
2) The value of the exponent in the right side must be y = 2, the correct option is C.
How to find an equivalent fraction?1) First we want to find an equivalent fraction to (2/3)^(-3)
Remember that a negative exponent means that we nee to take te inverse, we can write:
(2/3)^(-3) = (3/2)^3
Now we can just distribute the exponent along the numerator and denominator.
(3/2)^3 = (3^3)/(2^3) = 27/8
The correct option is A.
2) How to find the value of y?
Here we have the equation:
(3^3)^2/9^2 = 3^y
If we move the denominator to the right side, we can write:
(3^3)^2 = 9^2*3^y
Now, remember that:
9 = 3^2
Then we can write the right side as:
(9^2)*3^y = (3^2)^2*3^y = 3^(2*2)*3^y = 3^(4 + y)
Replacing that in the original equation we get:
(3^3)^2 = 3^(4 + y)
The exponent in the left side can be rewritten as:
(3^3)^2 = 3^(3*2) = 3^6
The the equation becomes:
3^6 = 3^(y + 4)
This is only true if:
6 = y + 4
6 - 4 =y
2 = y
The correct option is C.
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100 points! Eva is designing a new board game, and is trying to figure out all the possible outcomes. How many different possible outcomes are there if she spins a spinner with four equal-sized sections labeled Red, Green, Blue, Orange and rolls a fair die in the shape of a pyramid that has four sides labeled 1 to 4?
Answer:
the answer is number 4 okay
Answer:
it will roll on one of the sides after you roll it
What word sentence represents this inequality?
A number is at least as large as 8.9
A number is no more than 8.9
A number is greater that 8.9
Answer:
a number that is at least as large as 8.9
Step-by-step explanation:
the line under the greater than sign makes it equal to or greater than
A candy bar has 250 calories and a small
carrot has 15 calories. Write an algebraic
expression to find how many calories are in b
candy bars and c small carrots.
Answer:
250b calories in b, bars 15c calories in c, carrots
Step-by-step explanation:
Given: FC bisects ACD,
XACD is a straight angle
Prove: ACF is a right angle
If FC bisects ∠ACD and ∠ACD is a straight angles, then proved that the ∠ACF is a right angle
The ∠ACD is a straight angles
We know the angles on a straight line add up to 180 degree
Therefore,
The measure of angle ACD = 180 degrees
Here it is given that the line FC bisects angle ACD
Therefore, The angle ACF is equal to Angel DCF
Angle ACF = Angel DCF
Angle ACF + Angle DCF = 180 degrees
Then,
Angle ACF = Angel DCF = 90 degrees
Hence, if FC bisects ∠ACD and ∠ACD is a straight angles, then proved that the ∠ACF is a right angle
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