I need help someone help quick

Answer:

Step-by-step explanation:

The answer is -3

i just took the quiz and got it right

The rate of change for the given data is -3. Therefore, option A is the correct answer.

The coordinates from the given data are (-1, 5) and (2, -4).

The rate of change, or the slope, is calculated as Δy/Δx , or (y2−y1)/(x2−x1). The slope-intercept equation of a line is y=mx+b , where m is the slope and b is the initial value.

Here, (x1, y1)=(-1, 5) and (x2, y2)=(2,-4)

Rate of change = (-4-5)/(2+1)

= -9/3

= -3

The rate of change for the given data is -3. Therefore, option A is the correct answer.

Learn more about the rate of change and initial value here:

https://brainly.com/question/8223651.

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Answer:

I think

Y=129x-75

Step-by-step explanation:

Sorry if it's wrong I am not as good at math like I was before

Answer

512 student tickets were purchased.

Step-by-step explanation:

Answer:

y=x+5

Step-by-step explanation:

Answer:

[tex] \huge{ \boxed{ \bold{ \tt{y = 8}}}}[/tex]

☪ What is the value of y for the equation given below when x = 2 ?

☪ Step - by - step explanation :

plug the value of x ( i.e 2 )

➳ [tex] \sf{ - 3 \times 2 + 2y = 10}[/tex]

Remember : Multiplying or dividing a negative integer by a positive integer gives a negative integer.

➳ [tex] \sf{ - 6 + 2y = 10}[/tex]

Move 6 to right hand side and change it's sign

➳ [tex] \sf{2y = 10 + 6}[/tex]

Add the numbers : 10 and 6

➳ [tex] \sf{2y = 16}[/tex]

Divide both sides by 2

➳ [tex] \sf{ \frac{2y}{2} = \frac{16}{2}} [/tex]

➳ [tex] \boxed{ \sf{y = 8}}[/tex]

——————————————————

✏ Now, let's check whether the value of y is 8 or not !

✑ Verification :

[tex] \sf{ - 3x + 2y = 10}[/tex]

→ [tex] \sf{ - 3 \times 2 + 2 \times 8 = 10}[/tex]

→ [tex] \sf{ - 6 + 16 = 10}[/tex]

→ [tex] \sf{10 = 10}[/tex]

L.H.S = R.H.S ( Hence , the value of y is 8 . )

——————————————————

☞ Additional Info :

✒ Sign rules of addition and subtraction of integers:

✒ Sign rules of multiplication and division of integers :

✒ Rules for solving an equation :

Hope I helped!

Have a wonderful time ツ

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Missing Part of the Question:

- The time required for the rocket to reach its maximum height

- The maximum height of the rocket

Answer:

a. Time to reach maximum height is 1.37 seconds

b. Maximum Height = 34.1 metres

Step-by-step explanation:

Given.

H(t) = -4.9t² + 13.4t + 24.9

Solving (a): Time taken to reach maximum height.

A quadratic equation is:

f(x) = ax² + bx + c

Where

a = -4.9

b = 13.4

c = 24.9

This required time is represented by the vertex and is calculated as thus:

t = -b/2a

Substitute values for b and a

t = (-13.4)/(2 * -4.9)

t = -13.4/(-9.8)

t = 13.4/9.8

t = 1.37 (approximated)

Hence the time to reach maximum height is 1.37 seconds

b. Maximum height

Here, we simply substitute 1.37 for t in

H(t) = -4.9t²+ 13.4t + 24.9

Maximum Height = -4.9 * 1.37² + 13.4 * 1.37 + 24.9

Maximum Height = -4.9 * 1.8769 + 13.4 * 1.37 + 24.9

Maximum Height = -9.19681 + 18.358 + 24.9

Maximum Height = 34.06119

Maximum Height = 34.1 metres (approximated)

Answer:

0.44

Step-by-step explanation:

2/9 = 0.22

4/2 = 2

answer = 0.22 x 2

answer = 0.44

Answer:

4/9

Step-by-step explanation:

2/9 × 4/2

⇒ 2×4/9×2

⇒ 8/18

⇒ 4/9

hope this helps you!

Answer:

.75 or 3/4

Step-by-step explanation:

Answer:

47

Step-by-step explanation:

Answer:

use the slope formula to find the slope m

m = - 1/2

Answer:

Step-by-step explanation:

The number of years between 1996 to 2002 will be:

= 2002 - 1996

= 6 years

The relationship relating the value of the card y in dollars and the number of years x the player has been in retirement can be expressed as an equation in the form of:

y = 5.71 + 1.98x

where x = 6 years

y = 5.71 + 1.98(6)

y = 5.71 + 11.88

y = $17.59

The value of the card in 2002 ​is $17.59.

The relationship between x and y isn't proportional in this case.

Answer:

x = 19

Step-by-step explanation:

(5x + 2)° + 83° = 180°

✍️Reason: both are linear pair angles. Linear pair angles are supplementary.

Solve for x

5x + 2 + 83 = 180

5x + 85 = 180

Subtract 85 from both sides

5x = 180 - 85

5x = 95

Divide both sides by 5

x = 95/5

x = 19

Answer:

[tex]\approx \frac{11}{40}[/tex]

Step-by-step explanation:

Juice squeezed from first orange = [tex]\frac{4}{17}[/tex] = 0.235

Juice squeezed from second orange = [tex]\frac{3}{10}[/tex] = 0.3

Juice squeezed from third orange = [tex]\frac{9}{20}[/tex] = 0.45

Juice squeezed from fourth orange = [tex]\frac{3}{11}[/tex] = 0.27

Juice squeezed from fifth orange = [tex]\frac{7}{15}[/tex] = 0.47

Total juice squeezed from all the five oranges = 0.235 + 0.3 + 0.45 + 0.27 + 0.47 = 1.725

Total juice to be squeezed = 2 cups

More juice required = 2 - 1.725 = 0.275 [tex]\approx \frac{11}{40}[/tex]

Therefore, to make it 2 cups of orange juice for the family, about [tex]\approx \frac{11}{40}[/tex] cups of more juice is required.

Answer:

1 5/6

Step-by-step explanation: this is what i got from doing the math. please correct me if I'm wrong

Answer:

$22

Step-by-step explanation:

Answer:

b<-7 or b>-1

Step-by-step explanation:

explanation: -6b>42 turns into -42>6b then divide by 6 on both sides and you get -7>b

for the other inequality, you  take 4b+6>2 and then subtract6 from both sides, from there you will get 4b>-4 and that will be b>-1

Answer:

11 fishes

Step-by-step explanation:

Answer:27

Step-by-step explanation: add all the answers

Answer:

10 is the correct answer

Step-by-step explanation:

5+5=10

Answer:

Flip the fraction that you are applying the exponent to, if it's a whole number, just imagine it's over one and flip it that way.

Explanation:

If you have 3/5 ^-3

You would flip the fraction to 5/3, then the exponent turns to positive 3

So 5/3 ^3

For a whole number, for example, 6, ^-2

In other words, it's 6/1 ^2, so you would make it 1/6, then the exponent turns positive.

So 1/6 ^2

Hope this helped :)

To change a negative exponent to a positive one, a flip it into a reciprocal.

Here,

We have to explain, change a negative exponent to a positive one.

What is Reciprocal?

The inverse of a number is called Reciprocal.

Now,

Let a number is,  [tex]5^{-2}[/tex]

Then change it into positive exponent as;

Take reciprocal of [tex]5^{-2}[/tex], we get;

⇒ [tex](\frac{1}{5} )^2[/tex]

Hence,  reciprocal of [tex]5^{-2}[/tex] = [tex](\frac{1}{5} )^2[/tex]

So, To change a negative exponent to a positive one, a flip it into a reciprocal.

Learn more about the reciprocal visit:

https://brainly.com/question/1955429

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Answer:

is the first one

Step-by-step explanation:

Answer: Christa would need to save $35.45.

Step-by-step explanation:

70.45 - 35 = The amount Christa needs to save

70.45 - 35 = 35.45

Answer:

y = x - 5

Step-by-step explanation:

I just got it right on edge2020

Answer:

The mom is 30 times older than the son and the son is 30 years younger

Step-by-step explanation:

it says so

Answer:

30 gallons

Step-by-step explanation:

Answer:

Below.

Step-by-step explanation:

(a)

The acceleration = the slope of the graph (change of velocity / time)

= 25/15

= 1.67 m/s/s.

(b)

The distance moved = the area under the graph for the first 0 seconds,

= area of the first triangle + area of the rectangle with height 25 and length (40 - 15)

= 1/2 * 15 * 25  + (40-15) * 25

= 187.5 + 625

= 812.5 m.

(c). ? what is the question?

Answer:

1 hr and 45 mins

Step-by-step explanation:

12:26-11:11 or  115, so an hour and 45 mins.

Hope this helps :D

Answer:

75 min

Step-by-step explanation:

I did 49+26 because from 11:11 to 12 theres 49 min and from 12 to 12:26 theres 26 min

Answer:

C. -3

Step-by-step explanation:

You can do this using two different methods.

First, slope is written rise over run, or y over x. We can find two points and count how much we need to rise and run. The graph already includes the points (2,-3) and (-1, 6), which we will use. If you carefully look at the graph, you can see that if you start from the point (2,-3), you can rise 9 and run -3 to get to the point (-1, 6), which brings me to the next step. As I stated in the beginning, slope is written rise over run. Therefore, the slope is 9/-3, which simplifies to -3, answer choice C.

Another way you can do this is subtracting the y's and subtracting the x's in the same order. The y's go over the x's, and is basically written as a fraction. For this method, we still need two points. We will use the same points as above and listed on the graph, points (2,-3) and (-1, 6). The y's are -3 and 6, and the x's are 2 and -1. Now, subtract.

-3-6  =-9=-3

2-(-1)= 3

As you can tell, both methods of solving for slope worked, and the answer is choice C.

I hope this helps you!! Have a great day ^^

Answer: 4

Step-by-step explanation:

Given: Total girls = 24

Total boys = 20

If each group must be identical, then the maximum number of groups that can be made = GCD(24,20)   [GCD= Greatest common divisor]

Since 24 = 2 x 2 x 2 x 3

20 = 2 x 2 x 5

GCD(24,20)= 2 x 2 = 4

Hence, the maximum number of groups that can be made = 4

Answer:

Hai is incorrect, there is no solution to this equation.

Step-by-step explanation:

1.) Expand.

3x-4=2x+6+x3x−4=2x+6+x

2.) Simplify  2x+6+x2x+6+x  to  3x+63x+6.

3x-4=3x+63x−4=3x+6

3.) Cancel 3x3x on both sides.

-4=6−4=6

4.) Since -4=6−4=6 is false, there is no solution.

Therefore, this equation has no solution

Answer:$16.75

Step-by-step explanation:

Answer:

please mark me brainlist

Step-by-step explanation:

SEC2A -TAN2A

1/COS2A - SIN2A/COS2A

1-SIN2A/COS2A

1-2SINACOSA/COS^2A-SIN^2A

COS^2A+SIN^2A-2SINACOSA/COS^2A-SIN^2A

(COSA-SINA)*(COSA-SINA)/(COSA-SINA)*(COSA +SINA)

(COSA -SINA)/COSA+SINA