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3 years ago

Anyone want to help me out on this question?

Mathematics

1 answer:

kvasek [131]3 years ago

5 0

Answer:

i think it’s 2/7

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Which set of values could be the side lengths of a 30-60-90 triangle?

Tju [1.3M]

Answer:

Step-by-step explanation:

I think you are in geometry I learned this a little back...

It's hard to explain but basically one side is just (n) another is (n(square root sign))and another is (2n.)

So the answer Is a because in this case (n) is 4

6 0

3 years ago

How to solve these two problems ？

puteri [66]

8) $\theta$ is -0.896 radians

9) length of arc is 41.91 cm

Solution:

Given that,

$tan\ \theta = \frac{-5}{4}$

$\theta$ is in quadrant 4

To find: $\theta$

From given,

$tan\ \theta = \frac{-5}{4}\\\\\theta = tan^{-1} \frac{-5}{4}\\\\\theta = tan^{-1} (-1.25)\\\\\theta = -51.34$

Thus value of $\theta$ is -51.34 degrees

Convert degrees to radians

$-51.34\ degree = -51.34 \times \frac{ \pi }{180}\ radian\\\\-51.34\ degree = -0.896\ radian$

Thus $\theta$ is -0.896 radians

From given,

radius = 15.4 cm

$\theta = \frac{13 \pi }{15}$

The length of arc when angle in radians is:

$arc\ length = r \times \theta\\\\arc\ length = 15.4 \times \frac{ 13 \pi }{15}\\\\arc\ length = 15.4 \times 2.721\\\\arc\ length = 41.91$

Thus length of arc is 41.91 cm

4 0

3 years ago

16. A scientist measured the average flying speeds of 25 species of birds.

garik1379 [7]

The answer would be c

3 0

3 years ago

Read 2 more answers

Simplify (a + 2b +30) - (40+36-5a)

Crazy boy [7]

Step-by-step explanation:

(a+2b+30)-(40+36-5a)
a+2b+30-40-36+5a
6a+2b-46

hope it helps.

3 0

3 years ago

Evaluate the following trigonometric expression

Harlamova29_29 [7]

Answer:

-60

hope it helps

5 0

2 years ago