01-05-2020
Mathematics

contestada

1. sin(x+20) = cos(2x+10)
2. sin (2x+14) = cos(x-5)

Respuesta :

surjithayer10 surjithayer10

02-05-2020

Answer:

x=20°

2.

x=27°

Step-by-step explanation:

sin(x+20)=cos (2x+10)

=sin (90-(2x+10))

so x+20=90-(2x+10)

x+20+2x+10=90

3x=90-30

3x=60

x=60/3=20

2.

2x+14+x-5=90

3x+9=90

3x=90-9=81

x=81/3=27

Answer Link

Otras preguntas

(Number 5)help plzzz

Why price and quantity increase with an increse in demand

4). A rectangle is twice as long as its width. One way to write an expression to find the perimeter would be w+w+2w + 2w. Write the expression in two other ways

What two Germanic groups divided the area of Gaul between themselves?

Identify the two verbs in the sentences. During the monsoon season it rains almost every day in India. Many school children splash around in the water-filled st

how to calculate molecular mass?

Please help! Solve this problem. You might have to zoom in or flip the picture around. PLEASE DO NOT ANSWER THIS QUESTION UNLESS YOU KNOW HOW TO SOLVE IT!

According to Madison, how does the larger number of voters lead to a better class of representatives?

Solve for x. -3(2x – 1) – 3x – 4 = 17

PLEASE HELP ASAP give me 3 reasons why homework doesn’t actually teach responsibility. Show your work