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3 years ago

A.Give the function,find each value 1.Let k(x)=2x²-4x+6, a.find k(-2), and b.find k(2)

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

3 0

It is quite simple answer is this

1. 5
2. -6+4
3.13

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Use the distributive property to write an expression equivalent to 5×(3+4)

Lubov Fominskaja [6]

The answer is 5x times 7

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3 years ago

The necklace charm shown has two parts, each shaped like a trapezoid with identical dimensions.

Daniel [21]

What is the size of trapezoid?

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3 years ago

Can someone please help

chubhunter [2.5K]

Answer:

Step-by-step explanation:

She has 28056 before any deductions are taken off. As far as the IRS is concerned every penny she earns is fully accountable for the 4 categories that she has to pay into.

The problem with the question is you are not told what is wanted. Do they want the income before or after the deductions have been made or do they want the accountable sum (28056)? I don't really know. 28056 is one possible answer.

Total deductions

Federal Tax 3780.90
State Tax 770.98
Medicare 406.81
SSI <u>1739.47</u>
All Deductions 6698.16

Income = 28056 - 6698.16 = 21357.84

I think the answer you want is 28056

One answer it is not is 4*28056 = 112224. The tax is far too low for that kind of income.

3 0

3 years ago

Benjamin threw a rock straight up from a cliff that was 48 ft above the water. If the height of the rock h, in feet, after t s

fomenos

Answer: It will take 4 seconds for the rock to hit the water.

Step-by-step explanation:

Given : Benjamin threw a rock straight up from a cliff that was 48 ft above the water.

If the height of the rock h, in feet, after t seconds is given by the equation

$h = -16 t^2+ 52 t + 48$

To find : Time taken for the rock to hit the water.

When rock hit the water height becomes zero , i.e. put h = 0 , we get

$-16 t^2+ 52 t + 48 =0$

Divide equation by 2 , we get

$-8t^2+26t+24=0$

The Laue of x for ax²+bx+c =0 is $x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

So , $t=\frac{-26\pm\sqrt{(26^{2}-4(-8)(24))}}{2(-8)}$

$t=\dfrac{-26\pm 38}{-16}\\\\ t=-\dfrac{-26+38}{-16}=-0.75\ \ t=\dfrac{-26-38}{-16}=4$

Since t cannot be negative , so t= 4

Hence, it will take 4 seconds for the rock to hit the water.

5 0

3 years ago

Pretty please can you help with problem 7. (ONLY IF YOU KNOW)

Vika [28.1K]

1 yard = 3 foot. 1 Foot = 12 inches.
She has 2 yards, 3 inches which = 6 foot 3 inches.
She needs 5 foot 9 inches.

She has more than enough, and to work out how much she has left -
3 inches - 9 inches = -6 inches. -0.5 foot.
6 foot - 5 foot = 1 foot.
1 foot - 0.5 foot. = 0.5 foot. She has 0.5 foot left over

6 0

3 years ago

Read 2 more answers

A.Give the function,find each value 1.Let k(x)=2x²-4x+6, a.find k(-2), and b.find k(2)​

A.Give the function,find each value 1.Let k(x)=2x²-4x+6, a.find k(-2), and b.find k(2)