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3 years ago

In the function f(x) = 4(x2 − 6x + ____) + 20, what number belongs in the blank to complete the square?

1 answer:

6 0

Hello :
f(x) = 4(x2 − 6x + 3² - 3²____) + 20 = 4((x2 − 6x + 3²) - 3²____) + 20<span>
= 4(x-3)² -36+20
</span>f(x) = 4(x-3)² -16 (vertex form)

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snow_tiger [21]

Answer:

Range is 18.

Step-by-step explanation:

Range can be calculated by subtracting the smallest value of the data set from the largest value of the data set.

The values are:

13, 17, 18, 15, 12, 21, 10, 6, 8, 11, 3

Largest Value in this data set: 21

Smallest Value in this data set: 3

Range = Largest Value - Smallest Value

Range = 21 - 3

Range = 18

6 0

3 years ago

What is the value of k if 7k" minutes past nine" is the same as 8k" minutes to ten"?

schepotkina [342]

Answer:

4 minutes

Step-by-step explanation:

The value of 7k "minutes past nine" is the same as 8k" minutes to ten".

Since there are 60 minutes in an hour and 9 and 10 fall in between the same hour, this means that:

7k = 60 - 8k

7k + 8k = 60

15k = 60

k = 60 / 15

k = 4 minutes

5 0

3 years ago

What is the distance from 10 To 0

kicyunya [14]

Answer:

Hope this helps :)

5 0

3 years ago

Which equation can be used to find the value of x?

9966 [12]

Answer: D

Step-by-step explanation:

The perimeter is all the sides added up

2.5x + 2.5x + 10 + 2 + 10 =>

5x + 22

It is also given that the perimeter is 10.5x

meaning that both these values are equal

5x + 22 = 10.5x

4 0

3 years ago

Use the discriminat to describe the roots of each equation. Then select the best description 16x^2+8x+1=0

astra-53 [7]

Answer:

Step-by-step explanation:

Discriminant= 8^2-4(16)(1)

7 0

3 years ago