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2 years ago

How do you solve this problem step by step

Mathematics

1 answer:

andreyandreev [35.5K]2 years ago

7 0

You start by adding 4 to both sides, isolating the X. then you have your answer X < 3

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Brainly + 30 points! Find the values of a, b, and c

torisob [31]

Answer:

23 17 31

Step-by-step explanation:

igotitright

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2 years ago

A triangle has an area of 72 square inches. If the base of the triangle has a length of 18 inches, what is the height of the tri

Alecsey [184]

It could be 8 since 8x18= 144 and 144 divided by 2 is 72

8 0

2 years ago

I’m lazy:) I’ll give brainliest

FinnZ [79.3K]

Answer:

its 5.795

Step-by-step explanation:

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2 years ago

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Question in picture A) 16/63 B)-16/63 C) 63/16 D) -63/16

Orlov [11]

ANSWER
$\tan(x + y) = - \frac{63}{16}$

EXPLANATION

We were given that,

$\csc(x) = \frac{5}{3}$

This implies that,

$\sin(x) = \frac{3}{5}$

We use the Pythagorean identity

$\sin^{2} (x) + \cos^{2} (x)= 1$
to get,

$\cos(x) = \sqrt{1 - ( { \frac{3}{5} })^{2}} = \frac{4}{5}$

We were also given that,

$\cos(y) = \frac{5}{13}$

This means that,

$\sin(y) = \sqrt{1 - {( \frac{5}{13}) }^{2} } = \frac{12}{13}$

This is because,

$0 < \: x \: < \frac{\pi}{2}$

$0 < \: y \: < \frac{\pi}{2}$

This angles are in the first quadrant so we pick the positive values.

$\tan(x + y) = \frac{ \sin(x + y) }{ \cos(x + y) }$

$\tan(x + y) = \frac{ \sin(x ) \cos(y) + \sin(y) \cos(x) }{ \cos(x) \cos(y) - \sin(x) \sin(y) }$

$\tan(x + y) = \frac{ \frac{3}{5} \times \frac{5}{13} + \frac{12}{13} \times \frac{4}{5} }{ \frac{4}{5} \times \frac{5}{13} - \frac{3}{5} \times \frac{12}{13} }$

$\tan(x + y) = - \frac{63}{16}$

The correct answer is D

4 0

2 years ago

The ages of the students in a dance class are 10, 9, 11, 12, 9, 10, 9, 10, 11, 12, 8, 12, 12.

faust18 [17]

Answer:

Put the numbers in order then find the number that appears the most which is 12.

Step-by-step explanation:

8 0

3 years ago

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