9=x/12<br> What is x<br> I will give brainliest if correct

a persons salary is $2,500 per month. she received a 10% raise. What is her new salary in dollars per month?

Nadya [2.5K]

Answer:

2750

Step-by-step explanation:

10% of 2500 is 250

250 + 2500 = 2750

5 0

3 years ago

A projectile is launched into the air. The function h(t) = –16t2 + 32t + 128 gives the height, h, in feet, of the projectile t s

Zinaida [17]

Answer:

t = 4 seconds

Step-by-step explanation:

The height of the projectile after it is launched is given by the function :

$h(t)=-16t^2+32t+128$

t is time in seconds

We need to find after how many seconds will the projectile land back on the ground. When it land, h(t)=0

So,

$-16t^2+32t+128=0$

The above is a quadratic equation. It can be solved by the formula as follows :

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

Here, a = -16, b = 32 and c = 128

$t=\dfrac{-32\pm \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}\\\\t=\dfrac{-32+ \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}, \dfrac{-32\- \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}\\\\t=-2\ s\ \text{and}\ 4\ s$

Neglecting negative value, the projectile will land after 4 seconds.

4 0

3 years ago

Marisol scored 80% on her math test. The test had 45 questions, and each question was worth the same amount of the final score.

vampirchik [111]

Answer:

She answered 36 questions correctly out of the 45 questions.

6 0

3 years ago

The town of Fitzgerald wants to build a coffee house halfway between Oak Station and Pine Station. Where should it be located (l

Lubov Fominskaja [6]

Answer:

1, 1/2

Step-by-step explanation:

the coordinates would be Oak station(8,8) and Pine Station(-6,-7).

The midpoints would be

=[8+(-6)]/2 , [8+(-7)]/2

=2/2 , 1/2

=1, 1/2

4 0

3 years ago

A 15-foot flag pole is next to a tree. The flag pole is casting a shadow of 22.5 feet and the tree is casting a shadow that is 1

muminat

Answer:32.1428571429 feet

Step-by-step explanation:

The flag is 15 feet.

It's shadow is 10.5 feet.

15/10.5=1.4285714286.

So the flag is above mentioned times of the shadow.

And the tree's hight will be,

22.5*1.4285714286

=32.1428571429 feet.

3 0

3 years ago

9=x/12 What is x I will give brainliest if correct