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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.

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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Which 2 points are on the graph of p(c)=3/2c-6?

Andrei [34K]

i believe its (3,-5)

4 0

2 years ago

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

$I=-425x^2+45500x-650000$

(a)

now, we are given

average income is $275000

so, $I=275000$

now, we can set them equal

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

$x=27.28199$

$x=79.776$

we need to find youngest age

It means that we need to choose smallest value

so,

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

(b)

we are given

x=40

so, we can plug it and find I

$I=-425(40)^2+45500(40)-650000$

$I=490000$ ..............Answer

6 0

3 years ago

HELP I NEED HELP ASAP<br><br> FIND THE SLOPE AND Y-INTERCEPT OF THE TABLE.

Murljashka [212]

I don’t know about the slope but the Y-Intercept is just the Y.

4 0

2 years ago

Max makes a scale drawing of distance between salt lake city and Arizona. The distance between salt lake city and Arizona is 21

Elena L [17]

750 kilometers. 21 divided by 7 is 3. If 7 cm equals 250 km, then 7 × 3 = 250.

8 0

3 years ago

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.

<h2><u><em>The yellow fabric: 450/36 = 12.5 square yards</em></u></h2><h2><u><em>The blue fabric: 478/36 is around 13.3 square yards</em></u></h2>

Total Amount: 12.5+13.3=

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

7 0

2 years ago