3 years ago

The first person to answer correctly gets BRAINLIEST!. (20 POINTS)

Mathematics

1 answer:

asambeis [7]3 years ago

6 0

Answer:

y = 288 - 60x

Step-by-step explanation:

You might be interested in

What is the average of 5, 11, 12, and 8?

AURORKA [14]

Answer:

11.5

Good Luck

4 0

3 years ago

Read 2 more answers

Simplify. 4(w-2) - 6

Alex Ar [27]

Answer: 4w-14

Step By step explanation: 4(w-2)-6= 4w-8-6= 4w-14

4 0

3 years ago

Read 2 more answers

Help me please I don’t know this

ExtremeBDS [4]

its a m8 a a a a a aa aaa

8 0

3 years ago

If you shift the quadratic parent function, Flx) =x, down 9 units, what is the equation of the new function?

Mashutka [201]

Answer:

y = x-9

Step-by-step explanation:

6 0

3 years ago

H=255-21t-16t^2 PLEASE HELP!!

Colt1911 [192]

Answer:

3.15 seconds is the answer.

Explanation

when the ball touches the ground, h =0

hence,

0=255-21t-16t²

16t²+21t-225=0

here a=16 ,b=21, c= -225

$t= \frac{ - b± \sqrt{ {b }^{2} - 4ac} }{2a} \\ \\ t= \frac{ - 21± \sqrt{ {21}^{2} - 4 \times 16 \times - 225} }{2 \times 16} \\ = \frac{ - 21 ± \sqrt{441 - ( - 14400)} }{32} \\ = \frac{ - 21± \sqrt{14841} }{32} \\ = \frac{ - 21±121.82}{32} \\ \\ t = \frac{ - 21 + 121.82}{32} \: or \: \: t = \frac{ - 21 - 121.82}{32} \\ t = 3.15 \: \: or \: \: t = - 4.46$

time cannot be negative, hence t = -4.46 can be avoided

The ball takes 3.15 seconds to hit the ground.

4 0

3 years ago