All categories

3 years ago

PLEASE HELP ME ASAP I WILL MARK YOU AS BRILLIANTplease help with these three

Mathematics

1 answer:

GalinKa [24]3 years ago

6 0

Answer:

26: x=34

28: x=17

30: m=30

Step-by-step explanation:

26: 2x+22=90

subtract 22

2x=68

divide by 2

x=34

28: 18+3x+21=90

add 18 and 21

3x+39=90

subtract 39

3x=51

divide by 3

x=17

30: 43+87+m+20=180

add 43 and 87 and 20

m+150=180

subtract 150

m=30

You might be interested in

What is the value of arctan 0.866?

vodka [1.7K]

Answer: 0.713709862 rad

Step-by-step explanation:

4 0

2 years ago

Express sin A,cos A and tan A as ratios

OverLord2011 [107]

Answer:

Part A) $sin(A)=\frac{2\sqrt{42}}{23}$

Part B) $cos(A)=\frac{19}{23}$

Part C) $tan(A)=\frac{2\sqrt{42}}{19}$

Step-by-step explanation:

Part A) we know that

In the right triangle ABC of the figure the sine of angle A is equal to divide the opposite side angle A by the hypotenuse

$sin(A)=\frac{BC}{AB}$

substitute the values

$sin(A)=\frac{2\sqrt{42}}{23}$

Part B) we know that

In the right triangle ABC of the figure the cosine of angle A is equal to divide the adjacent side angle A by the hypotenuse

$cos(A)=\frac{AC}{AB}$

substitute the values

$cos(A)=\frac{19}{23}$

Part C) we know that

In the right triangle ABC of the figure the tangent of angle A is equal to divide the opposite side angle A by the adjacent side angle A

$tan(A)=\frac{BC}{AC}$

substitute the values

$tan(A)=\frac{2\sqrt{42}}{19}$

8 0

3 years ago

Convert .667 into a fraction

Inga [223]

$0.\underbrace{667}_{3}=\dfrac{667}{1\underbrace{000}_{3}}$

3 0

3 years ago

Please help will mark brainliest!

dmitriy555 [2]

2x - 3y = - 2

3x - 2y = 12

the value of X in the solution to the system is 4.

6 0

3 years ago

Read 2 more answers

5) HELP I don't know what I got incorrect can you please give me the answer and the step by step, THANK YOU SO MUCH TYSM!!!

MariettaO [177]

Same as moren.. sorry

6 0

3 years ago

Read 2 more answers