Mathematics High School

The function y = 4x represents the distance in miles, y, a horse runs in x hours.

What does the average rate of change over the interval [5, 7] mean?

A. The average speed of the horse in hours per mile between hours 5 and 7.

B. The average speed of the horse in miles per hour between hours 5 and 7.

C. The total time the horse travels in hours between hours 5 and 7.

D. The total distance the horse travels in miles between hours 5 and 7.

Answers

Answer 1

Answer:

B) The average speed of the horse in miles per hour between hours 5 and 7.

Step-by-step explanation:

I took the test

Related Questions

What is the missing length of this rectangle?

Answers

answer:
5ft

explanation:
9ft - 4ft = 5ft

What is the simplified form of the following expression?
11[(92 – 52) = 22 + 8]
O A. 224.5
O B. 242
C. 51.3
OD. 110

Answers

Answer:

B. 242

Step-by-step explanation:

Answer:

242

Step-by-step explanation:

it's 9 squared and 5 square. 9^2 5^2


Carmen creates the ratio table below based on one 8-ounce serving of juice



How many total calories will 4 servings of juice contain?

A) 420

B) 520

C) 650

D) 780

Answers

Answer:

B

Step-by-step explanation:

The pattern is adding 130, or multiply the servings by 130.

so if 3x=390, you would divide both sides by 3 and get 130.

This means that x=130

Now plug in 4x=?

You would get 4*130=?

if you do the math through multiplication you would get 520

Answer:

B

Step-by-step explanation:

I got the unit test right on edg 2020

Select the word that best completes the sentence.
Maya is asked to solve the equation 2(3x + 6) = 3(x - 10). The table shows her steps.
Given
2(3x + 6) - 3(x - 10)
Step 1
6x + 12 = 3(x - 10)
Step 2 6x + 12 - 3x + 30
Step 3 3x + 12 - 30
Step 4 3x - 18
Step 5 x = 6
Complete the sentence.
Maya made a mistake
between _____ Step 1 and Step 2. A. Adding B. Distributing C. Dividing D. Subtracting

Answers

Answer:

B

Step-by-step explanation:

susuusjakaajjajajajaajajaj

Ratio of AC:CB???
.———.—————.

Answers

Answer:

2:3 I think

Step-by-step explanation:

PLSSS FAST
3x 300

x = 10
x = 100
X =
100
x = 297

Answers

Answer:

x=100

Step-by-step explanation:

Alyssa’s lemonade recipe calls for 9 lemons for every 2.5 gallons of water. Brian’s recipe calls for 12 lemons for every 4 gallons of water. Whose lemonade will require more water if they each use 36 lemons? . can you help me

Answers

Answer:

Alyssa’s lemonade recipe

Step-by-step explanation:

→ Work out how much lemons is needed per gallon for Alyssa’s lemonade recipe

9 lemons = 2.5 gallons

(÷ 2.5)      =     (÷ 2.5)

3.6 lemons = 1 gallon

→ Work out how much lemons is needed per gallon for Brian’s lemonade recipe

12 lemons = 4 gallons of water

(÷ 4)            =    (÷ 4)

3 lemons = 1 gallon of water

→ Now compare

Alyssa’s lemonade recipe ⇒ 3.6 lemons = 1 gallon

Brian’s lemonade recipe ⇒ 3 lemons = 1 gallon of water

Brian's lemonade recipe requires more water.

Alyssa uses 10 gallons of water for 36 lemons. Brian uses 12 gallons of water for 36 lemons. Therefore Brian's lemonade recipe requires more water.

A 5-pack of popsicles costs $0.95. What is the unit price?

Answers

unit price - price of one
0.95/5= 0.19p
hope this helps

Which expression is equivalent to cos(103°)cos(54°) – sin(103°)sin(54°)?

sin(49°)
cos(49°)
sin(157°)
cos(157°)

Answers

Answer:

D - cos(157)

Step-by-step explanation:

Cos sum angle identity

cos(A+B) = cosAcosB - sinAsinB

103+54=157

The correct answer to the question is Cos 157

There are two ways to solve this question:

Method 1:

Evaluate: Cos103Cos54 – Sine103Sine54

This can be obtained as follow:

Cos103Cos54 – Sine103Sine54

= –0.1322 – 0.7883

= –0.9205

Next, we shall evaluate each option given in the question to see which will be equivalent to –0.9205. This is illustrated below:

Sine 49 = 0.7547

Cos 49 = 0.6561

Sine 157 = 0.3907

Cos 157 = –0.9205

From the above evaluation, we can see that Cos 157 is equivalent to Cos103Cos54 – Sine103Sine54

Thus, Cos 157 is the correct answer to the question.

Method 2

Again, we can apply the addition formula from trigonometry.

Cos (A – B) = CosACosB + SineASineB

Cos (A + B) = CosACosB – SineASineB

Sine (A + B) = SineACosB + SineBCosA

Sine (A – B) = SineACosB – SineBCosA

Comparing

Cos103Cos54 – Sine103Sine54 with the formula given above, it is very clear that:

Cos103Cos54 – Sine103Sine54 = Cos(103 + 54)

Cos103Cos54 – Sine103Sine54 = Cos 157

Recall:

Cos103Cos54 – Sine103Sine54 = –0.9205

Cos 157 =  –0.9205

Therefore, Cos 157 remains the correct answer to the question.

Learn more: https://brainly.com/question/24487371

For a fundraiser, each donor package contains 333 food vouchers and 555 raffle tickets. Complete the double number line diagram to show the numbers of food vouchers and raffle tickets in 111, 222, 333, and 444 donor packages. Choose 1 answer: Choose 1 answer:

Answers

Answer:

It's A

Step-by-step explanation:

PLEASE HELP ASAPPPPPP

Answers

Answer:

y = x

Step-by-step explanation:

The C's are both placed at 5

Can anyone help me with this ?

Answers

Answer:

b i think

Step-by-step explanation:

In the diagram shown below, Points M, N and P are collinear. If MN = 3x-9, NP = x+1 and MP= 6x-22, solve for the value of X (Answer notation: x=__)

Answers

Answer:

The value of x is 7

Step-by-step explanation:

M, N and P are collinear means they lie on the same line.

Mathematically;

MP = MN + NP

Thus;

6x-22 = 3x -9 + x + 1

6x-22 = 4x -8

6x -4x = -8 + 22

2x = 14

x = 14/2

x = 7

Three sides of a triangle are consecutive even integers. The
perimeter of the triangle is 48 in. Find the side lengths of the
triangle.

Answers

Answer:

The side lengths of the triangle are 14, 16, and 18.

Step-by-step explanation:

(x) + (x + 2) + (x + 4) = 48

3x + 6 = 48

3x = 42

x = 14

(14) = 14

(14 + 2) = 16

(14 + 4) = 18

The required lengths of side of triangle are 14 in, 16 in and 18 in.

What is a triangle?

A triangle is a geometric figure with three edges, three angles and three vertices. It is a basic figure in geometry.

The sum of the angles of a triangle is always 180°

Given that,

Sides of a triangle are consecutive integers.

Also given that,

Perimeter of triangle is 48.

Let the sides of triangle are x, x+2 and x +4.

x + x + 2 + x + 4 = 48

3x = 48 - 6

3x = 42

x = 14

The length of the triangles  

x + 2 = 14 + 2 = 16

x + 4 = 14 + 4 = 18

The side lengths of the triangle are 14, 16 and 18.

To know more about Triangle on:

https://brainly.com/question/2773823

#SPJ2

describe how you can find distances using a scale drawing.

Answers

Answer: Calculating the Actual Distance using the Scale

Step-by-step explanation: If the scale is 1 : x, then multiply the map distance by x to calculate the actual distance.

anyone can help me this thankyou​

Answers

Answer:

s² - 225 = 0

Step-by-step explanation:

Area of square = side  * side

s * s = 225

s² = 225

s² - 225 = 0

ASAP! I'LL GIVE YOU 10 POINTS! Can someone help me with my math? Please, I am begging you! It was due yesterday and I'm confused.
1. A line goes through the points (0,7) and (1,9). Write the following equation forms:
Point-Slope Form (using the point (1,9):
Slope-Intercept Form:
Standard Form:
2. Write the following equation forms given that f(−3)=4 and f(−1)=−4 are true of the line: Slope-Intercept Form:
Standard Form:

Answers

So the options are in y=mx+b aka slope intercept form, so since the slope is 1/2, and passes through (2,-3) the equation will be y=1/2x+2. So the answer is y = one-half x + 2.

Point slope form equation: y-y1=m(x-x1)
Where m=slope
Y1 is any y value from a point on the graph
X1 any x value from the same point on the graph

The first thing to do is find the slope

M= (9-7)/(1-0)=2/1=2

Next is to sun in values

the point given is (1,9)

So we put 9 in place of y1 and 1 in place of x1

So the line in point slope form is

Y-9=2(x-1)

Y intercept formula: y=mx+b

The only new letter is b which is the y intercept value (0,b)

The y intercept is the point where x is 0 which the problem says is (0,7)

So, keeping the same slope

The answer is

Y=2x+7

Standard form: Ax+By=C

Where A,B, and C are integers (can’t be fractions)

If you reorder the slope intercept form

You get

-2x+y=7

You have to flip the signs because a needs to be positive

So the answer is

2x-y=-7

2)

When you see something like f(-3)=4
That is saying when x is equal to -3, the whole equation is equal to 4

So f(x)=n

So when x is -3, y is 4 and when x is -1, y is -4

M=(4+4)/(-3+1)=8/-2=-4

Sub in points to find b

4=-4(-3)+b
4=12+b
b=-8

So,

Y=-4x-8

Std form

Move -4x to the left with addition to get

4x+y=-8

Hope that helped!

9(3+c+4)
I need the answer ASAP please

Answers

27+9c+36 or 63+9c. i believe that’s right.
9(3 + c + 4)
27 + 9c + 36
9c + 63
9c = -63
c = -7

Write the inverse function,
f^-1 (x), for the function
f (x) = 1/3x-4

Answers

[tex]f(x) = \frac{1}{3}x - 4 \\ [/tex]

[tex]y = \frac{1}{3}x - 4 \\ [/tex]

Subtract the sides of the equation plus 4

[tex]y + 4 = \frac{1}{3}x \\ [/tex]

Multiply the sides of the equation by 3

[tex]3(y + 4) = x[/tex]

[tex]3y + 12 = x[/tex]

So ;

[tex] {f}^{ - 1}(x) = 3x + 12 [/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

convert 86 meters to inches. ?
I'm so stuck rn because she says show how you got the answer never In a million years i thought i would never be doing medical math​

Answers

Answer:

86 meters equals 3385.83 inches

825 centimeters equals 324.803 inches

Step-by-step explanation:

The formula is divide the length value by 2.54

Hope this helps!

Consider this polynomial, where a is an unknown real number.
Braulio
(a. correctly
b. incorrectly)
found the value of a because he
(a. correctly performed synthetic division
b. should’ve solved the equation a + 14 = -17
c. should have used -1 instead of 1
d. made a mistake in the fourth column of his work )

zahra
(a. incorrectly
b. correctly)
found the value of a because she
(a. incorrectly applied the powers to -1
b. should have substituted 1 instead of -1
c. should have solved the equation a + 18 = -17
d. correctly substituted and evaluated the polynomial)

Answers

Answer:

Step-by-step explanation:

Correct steps to find the value of 'a' should be,

Braulio's synthetic division should be,

-1  |     1       5         a          -3           11

   

               -1        -4        (4 - a)     (a - 1)  

         1      4     (a - 4)     (1 - a)     (a + 10)

Here remainder is (a + 10).

So (a + 10) = 17 ⇒ a = 7

Braulio Incorrectly found a value of 'a' because he should have used (-1) instead of 1.

Zahra's calculation by remainder theorem should be,

p(x) = x⁴ + 5x³ + ax² - 3x + 11

p(-1) = (-1)⁴ + 5(-1)³ + a(-1)² - 3(-1) + 11

      = 1 - 5 + a + 3 + 11

      = (a + 10)

Since, remainder of the solution is 17,

(a + 10) = 17 ⇒ a = 7

Zahra incorrectly found the value of 'a' because she incorrectly solved the powers to (-1).

Answer: incorrectly, should have used -1 instead of 1

incorrectly, incorrectly applied the powers to -1

Step-by-step explanation:

What is the inverse of function f? f(x)=10/9r+11

Answers

[tex]f(x) = \frac{10}{9}x + 11 \\ [/tex]

So :

[tex]y = \frac{10}{9}x + 11 \\ [/tex]

Subtract the sides of the equation minus 11

[tex]y - 11 = \frac{10}{9}x \\ [/tex]

Multiply the sides of the equation by 9

[tex]9(y - 11) = 10x[/tex]

[tex]9y - 99 = 10x[/tex]

Divided the sides of the equation by 10

[tex] \frac{9y - 99}{10} = x \\ [/tex]

So :

[tex] {f}^{ - 1}(x) = \frac{9x - 99}{10} \\ [/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

1. What are two other names
for XY?


Answers

Answer:

1.

(x,y)---Ordered Pair of a point in two dimensional plane

x=Abscissae

y=Ordinate

2.

xy--Two Dimensional Plane

or xy-Plane

3.

xy----Monomial , that is a single term having

Step-by-step explanation:

There is only one line that can pass through two points and a plane which has only two dimensions intersects with another plane along a one dimensional line

The figure shows a two lines and two planes

1. [tex]\overset{\longleftrightarrow}{XY}[/tex] shows the symbol of a line, and the capital letters X and Y,

The other names for [tex]\overset{\longleftrightarrow}{XY}[/tex] are;

i) Line XY [tex]\left(\overset{\longleftrightarrow}{XY} \right)[/tex]and ii) Line YX, [tex]\left(\overset{\longleftrightarrow}{YX} \right)[/tex]

Reason:

A line can be named by reversing the order of the letters

2. Opposite rays are two rays that extends in opposite directions but have the same endpoint

Opposite rays are; [tex]\overset{\longrightarrow}{RY}[/tex], and [tex]\overset{\longleftarrow}{RX}[/tex]

Reason:

The rays [tex]\overset{\longrightarrow}{RY}[/tex], and [tex]\overset{\longleftarrow}{RX}[/tex] have a common end point, R, and they move in opposite direction

3. The intersection of two planes is a line;

The intersection of the two planes is the line [tex]\mathbf{\overset{\longleftrightarrow}{RS}}[/tex]

Learn more about points, lines, and planes here:

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integers are natural numbers.

Answers

Answer: False

Step-by-step explanation:

Hope this helps

convert 7.2 • 10^-3 to standard form.

A) 72,000
B) 7,200
C) 0.0072
D) 0.00072

Answers

Answer:

i think the answer is C

Step-by-step explanation: Because if it has a subtract sign you move decimals to the left.

simplify.show work
(3·9-3²)-10


thanks please show work

Answers

Answer:

8

Step-by-step explanation:

We will use a variety of elementary arithmetic skills to evaluate this expression.

The order of operations goes as follows:

P-Parentheses

E-Exponents

M-Multiplication

D-Division

A-Addition

S-Subtraction

For M and D, they are to be done left to right. Same with A and S. Now, we will apply this to our expression.

[tex](3*9-3^2)-10\\(3*9-9)-10\\(27-9)-10\\18-10\\8[/tex]

find the value of x, I need help with that

Answers

Answer:

x = 62

Step-by-step explanation:

just do vertically opposite:

180-90-28 = 62

because they are vertically opposite, x=62

also could do:

90-28=62

Tate started at -12 on a number line and drew a line to -25. How long is the line he drew?

Answers

Answer:

-13

Step-by-step explanation:

-25-(-12)

What is the simplified expression for the expression below?
-1(2x + 3) – 2(x - 1)
0 4x + 1
-4X-2
-4x+2
-4x - 1
I need help ASAP !!! Timed test

Answers

I think it is -4x -1?
Yeah it is the last one

what’s the answer??jdbfnfnfnfn

Answers

Answer:

m = -k/7

Step-by-step explanation:

(to) Solve for m;

7m + k = 0.         Given

      - k     -k        Subtract K from both sides

--------------------

      7m = -k        K becomes negative since it was subtracted

        _      _

        7      7         Divide both sides by 7 to get m by itself

---------------------

        m = -k/7      Answer

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How many sections of each course should the chair schedule in order to offer all the sections that they are allowed, accommodate all of the students, and give one teaching assignment to each professor? HELP! I WILL NAME YOU BRAINIEST !!!Two objects, a box weighing 103 kg and a football weighing 0.41 kg, are dropped at the same time from the top of a 98 m tall building. If air resistance is negligible, which of the two will touch the ground first? Calculate the number of hydrogen atoms in 41.4 g ofethyl alcohol, C2H60. Create a Python file named num_sum.py that contains: The definition of two functions: volume - accepts three parameters and returns the product of them, but displays nothing sum_of_nums - accepts 1 or more numbers and returns their sum, but displays nothing A print function call that includes a call to volume, passing 2, 3, and 4 A print function call that includes a call to sum_of_nums, passing 1, 2, 3, 4, and 5 Submit the Python program and screenshot. 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HELP ME PLZZ I NEED HELP WITH THIS!! The west nomogram chart has how many Columns how do I evaluate this help me please like seriously help130.75w+8x when w = 12 and x = 1/2 Can someone help me please "Why does a hamburger have fewer calories than a steak? Because it's in the ground state!" Explain the joke while also highlighting what the ground state means for electrons in a way that someone who has never taken chemistry before will understand. No, since the slopes are different.Yes, since the slopes are the same and the y-intercepts are the same.Yes, since the slopes are the same and the y-intercepts are different.No, since the y-intercepts are different. The breakup of the Mongol Empire into separate khanates during the mid-thirteenth century was most connected to which of the following developments?O A. The attempts of Mongol rulers to fome their subjects to convert to Islam led to widespread rebellions in Central and East Asia.B. 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