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Lostsunrise [7]

4 years ago

7

Plz help! 20 points!

1 answer:

Colt1911 [192]4 years ago

5 0

7. increasing; non-linear
8.A. y=4^x
9.A. y=6x

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eric has a summer lawn mowing buisness. based on experience eric knows that p= -3x^2 + 150x -1200 models his profit, p, in dolla

mezya [45]

Answer:

Eric can either charge $10 or $40 in order to break even.

Step-by-step explanation:

Eric has a summer lawn mowing business and the equation:

$p=-3x^2+150x-1200$

Models his total profit <em>p</em> by charging <em>x</em> dollars per lawn.

We want to determine what price Eric needs to charge in order to break even.

The price Eric charges to break even means that his total profit will be zero. Hence, we can let <em>p</em> = 0 and solve for <em>x</em>. Thu:

$0=-3x^2+150x-1200$

We can divide both sides by -3:

$0=x^2-50x+400$

Factor:

$0=(x-10)(x-40)$

Zero Product Property:

$x-10=0\text{ or } x-40=0$

Solve for each case. Hence:

$x=10\text{ or } x=40$

Therefore, Eric can either charge $10 or $40 in order to break even.

6 0

3 years ago

−18x 2y ≥ −13 written in slope-intercept form?

MissTica

Y≥-9x-6.5... is what I think you're looking for, though I'm not quiet sure.

7 0

3 years ago

please help with maths work

prisoha [69]

Given:

In a right angle triangle ABC, $\angle B=90^\circ,x=8.7\ m$ , and $\theta = 45^\circ$

To find:

The value of AC.

Solution:

In a right angle triangle,

$\cos \theta =\dfrac{Adjacent}{Hypotenuse}$

$\cos \theta =\dfrac{BC}{AC}$

$\cos (45^\circ) =\dfrac{8.7}{AC}$

$\dfrac{1}{\sqrt{2}}=\dfrac{8.7}{AC}$

On cross multiplication, we get

$AC=8.7\times \sqrt{2}$

$AC=12.30365799$

$AC\approx 12.304$

Therefore, the measure of AC is 12.304 m.

3 0

3 years ago

Find the solution(s) of 6x – 9 = 33x

Nookie1986 [14]

Answer:

C. x = 3/13

Step-by-step explanation:

7 0

3 years ago

Jonathan wants to buy a lid for his frying pan. The diameter of the pan is 11 inches. What is the approximate circumference of a

Leona [35]

the approximate circumference of a lid that will fit his frying is 34.5 inches .

<u>Step-by-step explanation:</u>

Here we have , Jonathan wants to buy a lid for his frying pan. The diameter of the pan is 11 inches. We need to find What is the approximate circumference of a lid that will fit his frying . Let's find out:

We know that a lid for his frying pan is basically in shape of circle , So we consider a lid for his frying pan as a circle ! Now ,

Circumference of circle = $2\pi r$ , r = radius

⇒ $Circumference =2\pi r$

⇒ $Circumference =2\pi \frac{D}{2}$

⇒ $Circumference =\pi D$ , D = Diameter = 11 inches

⇒ $Circumference =\pi (11)$

⇒ $Circumference =(3.14) (11)$

⇒ $Circumference =34.5inches$

Therefore , the approximate circumference of a lid that will fit his frying is 34.5 inches .

6 0

3 years ago

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