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3 years ago

14

soda pop is on sale at a price $10 for 3 packs. What is the scale factor that can be used to find out how much it would cost to

buy 15 packs?

1 answer:

forsale [732]3 years ago

8 0

Answer:

My answer is:

Step-by-step explanation:

150$ for 15

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Triangle ABC has vertices A(1,4), B(???2,4) , and C(???1,???1) . A dilation with a scale factor of 0.25 and center at the origin

saul85 [17]

Hello,

If you are starting with C as point (1, 1) all you have to do is multiply the coordinates by the scale factor. In this case, the scale factor is 0.25.

So we have: 0.25 x 1 = 0.25

Our new point C' will be (0.25, 0.25)

I hope this helps,
MrEQ

6 0

3 years ago

The quadratic model f(x)=-5x^2 +200 represents the approximate height, in meters, of a ball x seconds after being dropped. The b

mel-nik [20]

Answer:

Third option: 5.48

Step-by-step explanation:

Given the quadratic model that represents the approximate height in meters of the ball $f(x)=-5x^2 +200$ . the time in seconds x, when the ball is 50 meters from the ground can be calculated by substituting $f(x)=50$ and solving for x.

Then:

$50=-5x^2 +200$

Subtract 200 from both sides:

$-200+50=-5x^2 +200-200\\-150=-5x^2$

Divide both sides by -5:

$\frac{-150}{-5}=\frac{-5x^2}{-5}\\30=x^2$

Apply square root to both sides:

$\sqrt{30}=\sqrt{x^2}\\\sqrt{30}=x\\5.48=x$

The ball is 50 meters from the ground after about 5.48 seconds.

3 0

4 years ago

Please help I'll give you brainliest and a lot of points

liraira [26]

Answer:

about 50

Step-by-step explanation:

they a move up 5 minutes eace half mile

dont come at me if it is wrong :)

6 0

3 years ago

Which of the following will make a confidence interval narrower and more precise?

swat32

Answer:

B. Larger sample size and lower confidence level

Step-by-step explanation:

The margin of error of a confidence interval is given by the following formula:

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

z is related to the confidence level. The higher the confidence level, the higher the value of Z.

So, the margin of error is direct proportion to the confidence level and inverse proportional to the sample size.

We want to decrease the margin of error.

So the correct answer is:

B. Larger sample size and lower confidence level

6 0

3 years ago

drek231 [11]

So you know each french fry equals 25 calories. So amount of calories per french fry = 25f
Similarly we know each chicken wing has 100 calories so amount per chicken wing = 100c
So total calories = 25f+100c
Now we know that we want the total to be less than 500
Therefore the inequality should look like this
25f+100c<500

4 0

3 years ago