3 years ago

PLEASEEE HELP!!!!! (brainliest)

Mathematics

1 answer:

lesya692 [45]3 years ago

8 0

The answer should be 2d-20.

Need an explanation?

You might be interested in

A wooden beam 24 feet long leans against a wall and makes an angle of 71° with the ground. How high up the wall does the beam re

qaws [65]

20 is the right answer because it loses 2 feet in the angle and goes two ffet back cause the angle

4 0

3 years ago

two angles are supplementary. The measure of one is five times the measure of the other angle.Find each angle

Svetllana [295]

Let's say each side is 5 and 5 so all you have to do is times 5 bye 5 and divide the two numbers by 20 and when you get that then you add the numbers by 180 then your answer is 239cm

3 0

3 years ago

Solve the equation: x-14=20

motikmotik

Question

Solve the equation: x-14=20

x -14 = 20

x = 20 + 14

x = 34

34 is your answer

----------------------------

check

34 - 14 = 20

the answer is good

8 0

3 years ago

Read 2 more answers

Which represents the pythagorean theorem formula correctly

Fantom [35]

Answer: The first one. a^2 +b^2 = c^2

Step-by-step explanation:

8 0

3 years ago

If (cos)x= 1/2 what is sin(x) and tan(x)? Explain your steps in complete sentences.

Natasha_Volkova [10]

The correct answers are:
1) sin(x) = $\frac{ \sqrt{3} }{2}$
2) tan(x) = $\sqrt{3}$

Explanation:
Given:
$cos(x) = \frac{1}{2}$

Step 1:
Since, according to the Trigonometric identity:
$sin^2(x) + cos^2(x) = 1$ -- (1)

Step 2:
Plug in the value of cos(x) in equation (1):
$sin^2(x) + ( \frac{1}{2} )^2 = 1 \\ sin^2(x) + \frac{1}{4} = 1 \\ sin^2(x) = \frac{3}{4}$

Step 3:
Take square-root on both sides:
$\sqrt{sin^2(x)} = \sqrt{\frac{3}{4}}$

sin(x) = $\frac{ \sqrt{3} }{2}$

Now to find the tan(x), we would use the following formula:

tan(x) = $\frac{sin(x)}{cos(x)}$ --- (2)

Plug in the values of sin(x) and cos(x) in equation (2):
tan(x) = $\frac{ \frac{ \sqrt{3} }{2} }{ \frac{1}{2} }$

Hence tan(x) = $\sqrt{3}$

6 0

3 years ago

Read 2 more answers