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3 years ago

Can someone please answer this

Mathematics

1 answer:

Bumek [7]3 years ago

8 0

Answer: 64:1

Step-by-step explanation:

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10 ft

muminat

10+8+8.9+4=30.9
Rounded to the nearest tenth is 30ft

3 0

3 years ago

What number is 25% of 180

TiliK225 [7]

'what number' indicates an unknown value we can represent with 'x'

'is' indicates an equal sign.

25% = 0.25

'of' indicates multiplication.

x = 0.25 * 180

x = 45

4 0

4 years ago

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Anybody have an answer?

Usimov [2.4K]

You can cross out sin x from both the numerator and denominator, as sin x over sin x should always equal 1.

The answer is -cos x.

8 0

3 years ago

For the two right triangles above, explain why a/8=x/12 . What trigonometric ratio is also equal to the two given ratios?

frutty [35]

Answer:

sin trigonometry ratio

Step-by-step explanation:

Given

See attachment for triangles

Required

Explain why $\frac{a}{8} = \frac{x}{12}$

From the attached diagram, both triangles are similar triangles because

(1) the second triangle is a dilation of the first triangle by a ratio of 1.5

i.e

$k = \frac{12}{8}$

$k = 1.5$

(2) They have angle 30 degrees, and have their right angles located at the same point

In the first triangle, the sine of 30 degrees is represented as:

$sin(30) = \frac{Opp}{Hyp}$

This gives:

$sin(30) = \frac{a}{8}$

In the second triangle:

$sin(30) = \frac{Opp}{Hyp}$

So:

$sin(30) = \frac{x}{12}$

By comparison:

$sin(30) = sin(3)$

Hence:

$\frac{a}{8} = \frac{x}{12}$

8 0

3 years ago

Elaine is decorating for a party. She cuts 3 equal length streamers from a strip of purple paper that is 8 feet long. How long i

inn [45]

8/ 3 = 2.666 or 2 and 2/3

4 0

3 years ago

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