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Luden [163]
3 years ago
10

I need help fast. 8th grade multiple question. (I added photos)

Mathematics
1 answer:
n200080 [17]3 years ago
5 0

Answer:

C is the answer

Step-by-step explanation:

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Please, PLEASE help me! It’s due today! Please answer it properly! I’ll give Brainliest if the answer is correct, thank you In a
coldgirl [10]

Answer:

I wish I could help but I forgot how to do this, sorry. :(

3 0
3 years ago
A projectile with an initial velocity of 48 feet per second is launched from a building 190 feet tall. The path of the projectil
Furkat [3]

Answer:

t = 5.25 seconds

Step-by-step explanation:

Given that,

A projectile with an initial velocity of 48 feet per second is launched from a building 190 feet tall. The path of the projectile is modeled using the equation:

h(t)=-16t^2+48t+190

It is assumed to find the time when the projectile will hit the ground. When the projectile hit the ground, its height is equal to 0 such that,

-16t^2+48t+190=0

It forms a quadratic equation such that,

t=\dfrac{-b+\sqrt{b^{2}-4ac } }{2a},\dfrac{-b-\sqrt{b^{2}-4ac } }{2a}\\\\t=\dfrac{-48+\sqrt{(48)^{2}-4\times (-16)(190) } }{2\times (-16)},\dfrac{-48-\sqrt{(48)^{2}-4\times (-16)(190) } }{2\times (-16)}\\\\t=-2.25, 5.25

So, the projectile will hit the ground at t = 5.25 seconds.

3 0
3 years ago
Read 2 more answers
The scale for a drawing of a barn is 1/2inch = 4 feet. If a pole in the drawing measures 2 1/2 inches, how tall is the actual po
Alexxx [7]

Answer:

20 feet

Step-by-step explanation:

1/2" = 4 feet

1" = 8 feet

2" = 16 feet

2 1/2" = 20 feet

5 0
2 years ago
Read 2 more answers
2/3 k =28•4/9 solve for k
rodikova [14]
The answer is, k=18.
6 0
3 years ago
Read 2 more answers
Help pls thank you so much
azamat

Answer:

$179.20

Step-by-step explanation:

use the formula retail price = original price + markup

Step One: Convert 28% to a decimal

--> 0.28

Step two: Plug all the numbers into the equation

--> $140 + $140 x 0.28 = $179.20

Give brainliest if this was helpful! Thanks! Have an amazing day!

5 0
3 years ago
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