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erma4kov [3.2K]
3 years ago
15

Give in, interval notation, the unknown numbers in the following description. When 4 is added to twice a number, the result is g

reater than it equal to 18.
Mathematics
1 answer:
lbvjy [14]3 years ago
5 0
The answer is 8 hope this helps all u have to do is figure out what two numbers added togher give you 18
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The average income, I, in dollars, of a lawyer with an age of x years is modeled with the following function: I = -425x^2 + 45,5
lord [1]

We are given

The average income, I, in dollars is

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(a)

now, we are given

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and then we can solve for x

275000=-425x^2+45500x-650000

-425x^2+45500x-925000=0

we will have to use quadratic formula

x=\frac{-45500+\sqrt{45500^2-4\left(-425\right)\left(-925000\right)}}{2\left(-425\right)}:\quad \frac{-\sqrt{45500^2-1572500000}+45500}{850}

x=\frac{-45500-\sqrt{45500^2-4\left(-425\right)\left(-925000\right)}}{2\left(-425\right)}:\quad \frac{\sqrt{45500^2-1572500000}+45500}{850}

we get

x=27.28199

x=79.776

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x=27............Answer

(b)

we are given

x=40

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HELP I NEED HELP ASAP<br><br> FIND THE SLOPE AND Y-INTERCEPT OF THE TABLE.
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Samantha is making a quilt and she has determined she needs 450 square inches of yellow fabric and 478
asambeis [7]

Conversions:

1 yard = 36 inches

The store only sells fabric by the by the quarter yard.

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Total Amount: 12.5+13.3=

<h2><u><em>25.8 square yards</em></u></h2>

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2 years ago
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