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3 years ago

Let x^2−20x=10. What values make an equivalent number sentence after completing the square?

1 answer:

7 0

100 and 110.

You would have to add 100 to both sides. This is because to complete the square, you need to take half of the x term and square it.

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If f(x)=2x^3+5√(x-2) complete the following statement, f(6)=

solong [7]

Answer: 442

Step-by-step explanation:

$f(x)=2x^3+5\sqrt{(x-2)}$

$f(6)$

Simply replace all the x's in the equation for 6

$f(6)=2(6)^3+5\sqrt{(6-2)}\\ f(6)=2(216)+5\sqrt{4}\\ f(6)=432+5*2\\f(6)=432+10\\f(6)=442$

5 0

3 years ago

Write a numerical expression for 6 times the sum of 3 and 7

kompoz [17]

Answer:

6(3+7)

Step-by-step explanation:

i believe that is correct

6 0

3 years ago

At a gymnastics meet, three judges evaluate the balance beam performances of five gymnasts, using a scale from 1 to 10, where 10

Art [367]

Answer:

As 2.551 < 3.84 therefore we reject H0.

As 44.803 > 4.46 so we accept null hypothesis.

Step-by-step explanation:

The answer is attached.

There are three judges so v1 = 3-1= 2 and v2 = (4*2)= 8

There are five gymnasts so v1 = 5-1= 4 and v2= (4*2)= 8

For alpha = 0.05 we find the value of F1 and F2 from the table.

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6 0

3 years ago

Simplify the expression 4|-4|

Naddik [55]

An absolute value means something distance from 0, so |8| = 8 because the distance of 8 from 0 is 8. However the |-8| still equals 8 because the distance from -8 to 0 is 8

So with that in mind, we know that |-4| is 4 because the distance -4 is from 0 is 4

So we have 4*4 = 16

3 0

3 years ago

Read 2 more answers

A flag measures 150 feet by 75 feet. Find its area

Mazyrski [523]

Area = length x width

Area = 150 x 75

Area = 11,250 square feet

3 0

3 years ago

Read 2 more answers