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timofeeve [1]
3 years ago
14

Help me please and explain it to me on why, I dont understand how. thank you!!​

Mathematics
1 answer:
aliina [53]3 years ago
8 0

Answer:

A).

Step-by-step explanation:

The 72 is the initial height in feet of the object.

Initially the time = 0 seconds. If we plug zero into  the function we get:

h(0) -16(0)^2 + 110(0) + 72

= 0 + 0 + 72

= 72 feet.

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Use factoring to solve <br> 3x^2-11x-6=0
Zielflug [23.3K]

Answer:

x = -0.62 and x = 4.29

These values are approximations !

Step-by-step explanation:

You can not use Factoring to solve this equation. Perhaps you did not use the exact notation as in the original question?

Anyway, to solve it, you can still use the ABC formula.

3x²-11x-6=0

a = 3

b =-11

c = -6

x = [11 + √{121 -4(3 *-6)} ]/ 2*3

x = [11 + √{121 -4(-24)} ]/ 6

x = [11 + √{121 + 96} ]/ 6

x = [11 + √{217} ]/ 6

x = 4.29 This is an approximation !

x = [11 - √{121 -4(3 *-6)} ]/ 2*3

x = [11 - √{121 -4(-24)} ]/ 6

x = [11 - √{121 + 96} ]/ 6

x = [11 - √{217} ]/ 6

x = -0.62 This is an approximation !

extra: see the graph.

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3 years ago
Joe painted 2/3 of a bedroom in 4/5 of a day How many days will it take for Joo to paint one bedroom?
Marysya12 [62]

Answer:

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6 0
3 years ago
25 P O I N T S will be awarded!
PSYCHO15rus [73]

Answer:

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Find the angle y to the nearest degree:
Sladkaya [172]

Answer:

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Step-by-step explanation:

Take the inverse cosine of both sides of the equation to extract  

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y=arccos(7/19)

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Damm [24]

Answer:

Step-by-step explanation:

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(a)

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(b)

|7|-9=7-9=-2

6 0
3 years ago
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