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3 years ago

12

Two ladders are leaned against a wall such that they make the same angle with the ground. The 10’ ladder reaches 8’ up the wall.

How much further up the wall does the 18’ ladder reach?

1 answer:

Pachacha [2.7K]3 years ago

3 0

Answer:

16'

Step-by-step explanation:

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If sin square theta = 0.75, then cos =

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Answer:

$\cos\theta=\pm0.5$

Step-by-step explanation:

Given:

$\sin^2\theta=0.75$

To find $\cos\theta$

Using trigonometric relations for sums and differences of squares of the ratios.

We know:

$\sin^2\theta+\cos^2\theta =1$

Plugging in $\sin^2\theta=0.75$ in the above relation.

$0.75+\cos^2\theta =1$

Subtracting both sides by 0.75.

$0.75+\cos^2\theta-0.75 =1-0.75$

$\cos^2\theta =0.25$

Taking square root both sides.

$\sqrt{\cos^2\theta} =\sqrt{0.25}$

∴ $\cos\theta=\pm0.5$ (Answer)

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What is the value of d in 3/4(8x-6)-2=1/2-x

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Answer: 32/35

Step-by-step explanation:

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4 times the measure of the complement of an angle is equal to / the measure of the original angle's supplement. What is the meas

WINSTONCH [101]

72 degrees if its 2/3

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Find indicated values: m AB = m ABC = m BAC = m ACB =

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AB
It is indicated in the figure and is valid:
m AB = 49
m ABC
Angle resulting from the following subtraction:
m ABC = 360-107 = 253
m BAC
Angle resulting from the sum of the two angles shown in the figure:
m BAC = 107 + 49 = 156

m ACB
Angle resulting from the following subtraction:
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Martha tries to exercise at least 30 minutes eac day write an inequality to represent the number of minutes Martha exercises eac

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Let “t” represent the number of minutes Martha exercises each day. If she needs to exercise *at least* 30 minutes, t has to be equal to or greater than 30, so our inequality would be

t ≥ 30

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