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3 years ago

Offering 50 points and brainliest to anyone can explain steps (Pic attached)

Mathematics

1 answer:

olchik [2.2K]3 years ago

7 0

D because the shaded region has one side and subtract by pie and substitute to get this answer.

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Write two hundred billion,four hundred million in standard form

romanna [79]

200,000,000,000 I believe that is 200 billion
400,000,000 That is 400 million

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3 years ago

F/2-22<48, I want to know what f equals. Worth 30 points.

yarga [219]

$\frac{F}{2} -22\ \textless \ 48 \\ \frac{F}{2} \ \textless \ 48+22 \\ \frac{F}{2} \ \textless \ 70\ \ \ \ \ \ \ \ \ |*2 \\ F\ \textless \ 140 \\ \\ \boxed {F\in(-\infty\ ;\ 140)} \\ \\ \\ \\ \\ \\ \underline {\underline{Regards\ M.Y.}}$

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4 years ago

Rosalie is organizing a circus performance to raise money for a charity. She is trying to decide how much to charge for tickets.

Ray Of Light [21]

Answer:

she should charge $7.395 per ticket in order to make the most money.

Step-by-step explanation:

From the given information:

If Rosalie charges $5 then 1175 people will attend the circus performance

If Rosalie charges $7 then 935 people will attend the circus performance

Let x be the cost and y to be the number of people that will attend the performance . Then, we will have two points which are;

(5, 1175) and (7, 935)

The slope(m) of this points = $\dfrac{\Delta y}{\Delta x}$

= $\dfrac{y_2-y_1}{x_2-x_1}$

$=\dfrac{935-1175}{7-5}$

Slope (m) = $\dfrac{-240}{2}$

Slope (m) = -120

However; we can now have the linear equation:

$y-y_1 = m(x-x_1)$

$y-1175= -120(x-5)$

$y-1175= -120x+600$

$y= -120x+600+1175$

$y= -120x+1775$

The linear function is : y = -120x + 1775

Now; the total amount of money she can now earn is:

f(x) = xy

f(x) = x(-120x + 1775)

f(x) = -120x² + 1775x

The above expression is a quadratic equation; Using the quadratic formula; we have:

$=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}$

where; a = -120 ; b = +1775 and c = 0

$=\dfrac{-(1775) \pm \sqrt{(1775)^2-4(-120)(0)}}{2(-120)}$

$=\dfrac{-(1775) + \sqrt{(1775)^2-4(-120)(0)}}{2(-120)} \ \ \ \ \ OR \ \ \ \ \dfrac{-(1775) -\sqrt{(1775)^2-4(-120)(0)}}{2(-120)}$

$=\dfrac{-(1775) + \sqrt{(1775)^2}}{(-240)} \ \ \ \ \ OR \ \ \ \ \dfrac{-(1775) -\sqrt{(1775)^2}}{(-240)}$

$=\dfrac{-(1775) + (1775)}{(-240)} \ \ \ \ \ OR \ \ \ \ \dfrac{-(1775) - (1775)}{(-240)}$

$=\dfrac{0}{(-240)} \ \ \ \ \ OR \ \ \ \ \dfrac{-3550}{(-240)}$

= 0 OR 14.79

Since; we are considering the value greater than zero

x = 14.79

maximum value of x = 14.79/2 = 7.395

Thus ; she should charge $7.395 per ticket in order to make the most money.

6 0

3 years ago

A 12 foot board rests against the wall. The angle that the board makes with the ground is 60 degrees. How far is the base of the

9966 [12]

Answer:

6 foot

Step-by-step explanation:

Since the board is 12foot and the angle makes 60 degrees to the wall, we can assume that it is the 30,60,90 degreees. 30,60,90 degrees triangle makes the side of x, 2x ,and xroot3.

Hence, the board(12foot) is equal to 2x.

x=6

5 0

3 years ago

Read 2 more answers

The tax rate is 8.5% what is the tax on $95? Rounded to the nearest hundredth.

pentagon [3]

0.085 x 95 = 8.08

answer
sales tax is $8.08

6 0

3 years ago

Read 2 more answers

*Offering 50 points and brainliest to anyone can explain steps* (Pic attached)

Offering 50 points and brainliest to anyone can explain steps (Pic attached)