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3 years ago

HELP PLS ILL MARK BRAINLIEST PLEASEEEEEEEEE

Mathematics

2 answers:

Harlamova29_29 [7]3 years ago

8 0

C or a for this problem

Rama09 [41]3 years ago

5 0

Answer:

I think its C

Step-by-step explanation:

I guessed

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Please help! i don’t understand this question thank youuuu

ad-work [718]

Can i see it with the drop menus down

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3 years ago

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The path of a volley ball thrown over a net is modeled with the function A(x) = -0.02x2 + 0.6x + 5, where x is

LiRa [457]

Answer:

The ball travel horizontally 37 feet before it hits the ground

Step-by-step explanation:

we have

$A(x)=-0.02x^2+0.6x+5$

where

x ----> is the horizontal distance in feet

A ---> is the altitude of the ball, in feet.

we know that

When the ball hit the ground, the altitude of the ball is equal to zero

For A(x)=0

$-0.02x^2+0.6x+5=0$

solve the quadratic equation

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

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

in this problem we have

$-0.02x^2+0.6x+5=0$

$a=-0.02\\b=0.6\\c=5$

substitute in the formula

$x=\frac{-0.6\pm\sqrt{0.6^{2}-4(-0.02)(5)}} {2(-0.02)}$

$x=\frac{-0.6\pm\sqrt{0.76}} {-0.04}$

$x=\frac{-0.6\pm0.87} {-0.04}$

$x=\frac{-0.6+0.87} {-0.04}=-6.75$

$x=\frac{-0.6-0.87} {-0.04}=36.75$

therefore

The ball travel horizontally 37 feet before it hits the ground

3 0

3 years ago

Please help me with this problem

tigry1 [53]

Answer:

A- 30,968 + 31,211

Step-by-step explanation:

Since 62,179 minus 31,211 is equal to 30968, 30968 plus 31,211 can be used to help check the answer for 62,179 minus 31,211.

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3 years ago

Dia is 10 years old. How many years have to add with twice of her age to get 24?

salantis [7]

Answer:

Step-by-step explanation:

twice her age:

10*2 = 20

24-20 = 4

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2 years ago

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In 6 days, the temperature dropped 18 degrees. How many degrees per day did the temperature drop

Gekata [30.6K]

Answer:

3 degrees

Step-by-step explanation:

18 degrees / 6 days = 3 degrees per day

7 0

3 years ago

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