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eimsori [14]
3 years ago
11

Please give me the correct answer ​

Mathematics
2 answers:
Ronch [10]3 years ago
8 0

Answer:

I believe it's the last one.

algol [13]3 years ago
8 0
The last answer is gonna be it
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Leon drove 100 miles in 2 hours. Find the constant of variation.
Helga [31]

To find the constant variation, solve for only one hour (in this case).

Divide 100 with 2

100/2 = 50/1

Each hour is 50 miles driven, so your constant variation is 50 mph

3 0
3 years ago
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A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
barxatty [35]

Step-by-step explanation:

I assume that "ground" is at 0 ft height. which is in an actual scenario not airways the case.

y = -16x² + 64x + 89

shows us that the tower is 89 ft tall (the result for x = 0, at the start).

anyway, if the original assumption is correct, then we need to solve

0 = -16x² + 64x + 89

the general solution for such a quadratic equation is

x = (-b ± sqrt(b² - 4ac))/)2a)

in our case

a = -16

b = 64

c = 89

x = (-64 ± sqrt(64² - 4×-16×89))/(2×-16) =

= (-64 ± sqrt(4096 + 5696))/-32 =

= (-64 ± sqrt(9792))/-32

x1 = (-64 + 98.95453501...)/-32 = -1.092329219... s

x2 = (-64 - 98.95453501...)/-32 = 5.092329219... s

the negative solution for time is but useful here (it would be the time calculated back to ground at the start).

so, x2 is our solution.

the rocket hits the ground after about 5.09 seconds.

5 0
2 years ago
What is the product of (x+3) (2x-1)
snow_lady [41]
2x² +5x -3 

is your answer

hope this helps

FOIL = first, outside, inside last
7 0
3 years ago
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Please help brainliest if correct
german

Answer: H

Step-by-step explanation:

7% of 21 is 1.47

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Which expression is equivalent to 10√5<br>A. √500<br>B.√105<br>C.√50<br>D.√15
julsineya [31]
50 is the answer to this question
3 0
3 years ago
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