3 years ago

Which of the following describes a situation in which the total distance a ball travel is zero meters from its starting point?

Mathematics

1 answer:

shtirl [24]3 years ago

3 0

Answer:

2nd choice: The ball first bounced up to the height of 2 meters, and then falls 2 meters towards the ground

Step-by-step explanation:

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A 12-ft ladder leaning against a house makes a 64 degree angle with the ground. Will the ladder reach a window sill that is 10.5

Luba_88 [7]

Answer:

Yes, it will

Step-by-step explanation:

Given

Length of Ladder = 12 ft

Angle = 64

Required

Determine if it'll reach a height of 10.5ft from the base

See attachment for proper illustration.

<em>From the attachment, we want to determine that x be greater than 10.5</em>

Using sin formula:

$Sin\ 64 = \frac{x}{12}$

Multiply through by 12

$x = 12 * sin\ 64$

$x = 12 * 0.8988$

$x = 10.79$ (Approximated)

<em>Since 10.79 is greater than 10.5, then the ladder will reach the window</em>

sin64 = x/12

x = 12* sin64

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3 years ago

the circumference of a circle is a(pi) units, and the area of the circle is b(pi) square units. If a=b, what is the radius of th

xxTIMURxx [149]

Answer:

the redius is 0 unit or 1/2^(1/2) unit.

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3 years ago

A car gets 27 mile per gallon of gas. How far will it go on 12 gallons?

olga55 [171]

Answer:

324

Step-by-step explanation:

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3 years ago

Please help!!!!this is my last part of my discussion and I am stuck on it I would really appreciate the help!!

frosja888 [35]

x + 5 = 0 - > x = -5

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3 years ago

If (x-2) is a factor of x^3+kx^2 +12x-8 then k=?

AURORKA [14]

Answer:

k = - 6

Step-by-step explanation:

Since (x - 2) is a factor then x = 2 is a root

Substitute x = 2 into the polynomial and equate to zero, that is

2³ + k(2)² + 12(2) - 8 = 0

8 + 4k + 24 - 8 = 0

4k + 24 = 0 ( subtract 24 from both sides )

4k = - 24 ( divide both sides by 4 )

k = - 6

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3 years ago