2 years ago

Help please I need this so much ... I will brainlist

Mathematics

1 answer:

Shtirlitz [24]2 years ago

8 0

The answer this is the 3rd option choice: Reaches a maximum height of 549 feet after 5.75 seconds.

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Given it's midpoint and one endpoint apply the midpoint formula and solve for x and y midpoint (22,15) endpoint (18,6

Nutka1998 [239]

Midpoint formula

mid of (x1,y1) and (x2,y2) is
$( \frac{x2+x1}{2}, \frac{y2+y1}{2})$

so

(22,15)= $( \frac{18+x1}{2}, \frac{6+y1}{2})$
therefor

22= $\frac{18+x1}{2}$
and
15= $\frac{6+y1}{2}$

slv each
22= $\frac{18+x1}{2}$
times both sides by 2
44=18+x1
minus 18 both sides
26=x1

15= $\frac{6+y1}{2}$
times both sides by 2
30=6+y1
minus 6
24=y1

the other point is (26,24)

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2 years ago

A sample contains 400 Plutonium-244 atoms. After 1 half-life(s) how many plutonium atoms are left on average?

SpyIntel [72]

Answer:

200

Step-by-step explanation:

Divide 400 by 1/2 or 2.

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2 years ago

9. 6(0.4 +0.3) =<br> I need it now!!!!!<br> :)

AysviL [449]

Answer:

4.2

Step-by-step explanation:

0.4+0.3=0.7

0.7x6=4.2

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2 years ago

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Solve the word problem.

Mazyrski [523]

I would say a because you would divide distance by time giving you the rate 48mi/hr

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2 years ago

Sales tax in the state is 7.75.write the number used to figure the sales tax on a purchase

alexira [117]

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Answer: 0.775

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