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2 years ago

PLEASE HELPP NOW!!!!!

Mathematics

2 answers:

BaLLatris [955]2 years ago

3 0

Answer:

the codrect answer is 625

Archy [21]2 years ago

3 0

number three is the answer

Step-by-step explanation:

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How to write 100203 in standard form

natima [27]

100203 = 1.00203 x 10^5

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Crew b earns $315 after 3 hours, $525 after 5 hours, and $735 after 7 hours of work. Explain whether or not Crew b's data show a

Westkost [7]

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3 years ago

Read 2 more answers

Correct the mistake

ankoles [38]

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3 years ago

A teenager who is 5 feet tall throws an object into the air. The quadratic function LaTeX: f\left(x\right)=-16x^2+64x+5f ( x ) =

tia_tia [17]

Answer:

At approximately x = 0.08 and x = 3.92.

Step-by-step explanation:

The height of the ball is modeled by the function:

$f(x)=-16x^2+64x+5$

Where f(x) is the height after x seconds.

We want to determine the time(s) when the ball is 10 feet in the air.

Therefore, we will set the function equal to 10 and solve for x:

$10=-16x^2+64x+5$

Subtracting 10 from both sides:

$-16x^2+64x-5=0$

For simplicity, divide both sides by -1:

$16x^2-64x+5=0$

We will use the quadratic formula. In this case a = 16, b = -64, and c = 5. Therefore:

$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Substitute:

$\displaystyle x=\frac{-(-64)\pm\sqrt{(-64)^2-4(16)(5)}}{2(16)}$

Evaluate:

$\displaystyle x=\frac{64\pm\sqrt{3776}}{32}$

Simplify the square root:

$\sqrt{3776}=\sqrt{64\cdot 59}=8\sqrt{59}$

Therefore:

$\displaystyle x=\frac{64\pm8\sqrt{59}}{32}$

Simplify:

$\displaystyle x=\frac{8\pm\sqrt{59}}{4}$

Approximate:

$\displaystyle x=\frac{8+\sqrt{59}}{4}\approx 3.92\text{ and } x=\frac{8-\sqrt{59}}{4}\approx0.08$

Therefore, the ball will reach a height of 10 feet at approximately x = 0.08 and x = 3.92.

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2 years ago

Find the inverse function for y=3/4+x

Sonja [21]

The inverse of this function is y = x - $\frac{3}{4}$

You can find the inverse of any function by switching the x and y values and then solving for the new y value. Once you've done that, what will be left over is the inverse function.

y = $\frac{3}{4} + x$ ----> Swap x and y

x = $\frac{3}{4} + x$ -----> Subtract 3/4 from both sides.

x - $\frac{3}{4}$ = y ----> rearrange to appropriate order

y = x - $\frac{3}{4}$

And that is your inverse function.

8 0

2 years ago