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Stella [2.4K]
3 years ago
5

Plz help it’s due rn!!

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0

Answer:

3. angles forming a linear pair to sum to 180

4. Def of supplementary angles

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a toy rocket is launched from the top of a 48 foot hill. The rockets initial upward velocity is 32 feet per second and its heigh
sdas [7]

Answer:

t = 2.11 seconds

Step-by-step explanation:

A toy rocket is launched from the top of a 48 foot hill. The rockets initial upward velocity is 32 feet per second and its height h at any given second t is modeled by the equation:

h=-16t^2+32t+48

Let us assume that we need to find the time by it to reach the ground. It means h = 0

-16t^2+32t+48=0

The above is a quadratic equation. The value of t is given by :

t=\dfrac{-b\pm \sqrt{b^2-2ac} }{2a}\\\\t=\dfrac{-b+ \sqrt{b^2-2ac} }{2a},\dfrac{-b- \sqrt{b^2-2ac} }{2a}\\\\t=\dfrac{-32+ \sqrt{(32)^2-2\times (-16)(8)} }{2\times (-16)},\dfrac{-32-\sqrt{(32)^{2}-2\times(-16)(8)}}{2\times(-16)}\\\\t=-0.11\ s, 2.11\ s

So, it will take 2.11 seconds to reach the ground.

6 0
3 years ago
Find the surface area of the prism.
Maurinko [17]

Answer:

326m²

Step-by-step explanation:

Find the area of each side and find the total sum from each individual area:

2(15*4)+2(7*4)+2(7*15)=2(60)+2(28)+2(105)=2(163)=326

So the surface area of the prism is 326m²

5 0
2 years ago
Math help plzzzzzzzxysgzfrhfu
DanielleElmas [232]

Answer:

d is answer i 100% sure for first

5 0
2 years ago
Read 2 more answers
Mrs Boswell is ordering cookies from a bakery for her daughter’s eighth grade graduation party she uses a table to figure out ho
Alekssandra [29.7K]

Answer:

I'm pretty sure the answer is B, I hope this helps!

5 0
2 years ago
Simplify the expression <br><br><img src="https://tex.z-dn.net/?f=6%285%20%2B%20t%29%20-%203%28t%20%2B%203%29" id="TexFormula1"
Pavel [41]
30+6t - 3t-9
combine 6t and -3t and get 3t
30+3t=-9
subtract 30 on both sides
3t=-39
divide by 3
t=13
3 0
2 years ago
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