1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexira [117]
3 years ago
15

If cos x= sin(20 + x)° and 0° < x < 90°, the value of xis

Mathematics
1 answer:
ruslelena [56]3 years ago
4 0

Answer:

draw a right angle triangle

Step-by-step explanation:

Let one of the angles be A  

cos A = sin (90-A)  

90 - x - 20 = x  

2x = 70  

x = 35 degrees

You might be interested in
Find the result when 90 is decreased by 35%.<br> 58.5<br> 75.6<br> 60.5<br> 78.5
avanturin [10]
In this question, it's asking you to find the number when 90 is subtracted by 35%. So, you find 35% of 90 which is 31.5 and you minus it from 90 = 58.5.

> 90 x 35% = 31.5
> 90 - 31.5 = 58.5
3 0
3 years ago
A cube-shaped box has a volume of 1/8 of a cubic meter. What is the perimeter of each of its
belka [17]

Given:

The volume of a cube-shaped box is \dfrac{1}{8} cubic meter.

To find:

The perimeter of each of its faces.

Solution:

Let "a" be the side length of the cube shaped box. Then the volume of the box is:

V=(side)^3

V=a^3

It is given that the volume of a cube-shaped box is \dfrac{1}{8}  cubic meter.

a^3=\dfrac{1}{8}

Taking cube root on both sides, we get

a=\dfrac{1}{2}

Now, the perimeter of each face of a cube is:

P=4a

Where, a is the side length of the cube.

Putting a=\dfrac{1}{2}, we get

P=4\times \dfrac{1}{2}

P=2

Therefore, the perimeter of each face of a cube-shaped box is 2 meters.

5 0
3 years ago
If PQR ~ QST, find the value of x
MaRussiya [10]

Answer:

I don't understand.

Step-by-step explanation:

5 0
2 years ago
Which function is linear?
natali 33 [55]

Answer:

B) f(x)=13x+4 and C) f(x)=|3x| − 4

5 0
3 years ago
Who will win, maddy or cassie?
Nostrana [21]

Answer:

ME

Step-by-step explanation:

ME BC IMA GOD!

7 0
2 years ago
Other questions:
  • What is the value of 5(7× +5), when X=10 ?
    12·2 answers
  • NEED HELP ASAP !!!!!!!
    6·1 answer
  • The place value of the 7 in 0.724
    14·2 answers
  • Answer this and I’ll make you Brainly!
    8·2 answers
  • Tìm x,y thỏa mãn: x^2-2xy+3y-5x+7=0
    8·1 answer
  • Basically everything is in the picture PLEASE HELP me ASAP​
    8·1 answer
  • What is the value of x????
    9·1 answer
  • 32 players show up to practice one day, and the coach realizes she can't
    9·1 answer
  • Apply the 45º-45º-90º Triangle Theorem to find the length of the hypotenuse of the triangle.
    13·2 answers
  • PLEASEEE HELP !!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!