All categories

4 years ago

What is the value of x?

Mathematics

2 answers:

Nina [5.8K]4 years ago

7 0

Sum of angles of a triangle = 180°

91 + 10x - 4 + 8x +3 = 180
18x + 90 = 180
18x = 90
x = 5°

hram777 [196]4 years ago

6 0

Sum of angles of a triangle = 180°

91 + 10x - 4 + 8x +3 = 180
18x + 90 = 180
18x = 90
x = 5°

You might be interested in

Please help asap || brainliest + 15 points

Leni [432]

Ughhh I’m not totally sure but I’ll see what I can do to help you

5 0

4 years ago

Which inequality is a true statement?

tiny-mole [99]

Answer:

It is the second one and the last one.

Step-by-step explanation:

5 0

3 years ago

Write an<br> explicit formula for an, the nth <br> term of the sequence 8, 16, 24, ....

Vanyuwa [196]

Answer:

For an nth term U(n) = a + (n -1)d

n = number of terms

a = first term

d = common difference

a = 8

d = 16 - 8 = 8

U(n) = 8 + (n-1)8

= 8 + 8n - 8

= 8n

The formula for the sequence is 8n

Hope this helps.

5 0

3 years ago

What is (2.5 x 10 to the third power) (6 x 10 to the fourth power)

Gelneren [198K]

Answer:

2,500) (60,000

brain pls

Step-by-step explanation:

5 0

3 years ago

A helicopter takes off from the ground 800 feet from the base of a building. It flies in a straight line directly to the top of

Stolb23 [73]

Answer:

11.3°

Step-by-step explanation:

Refer the attached figure .

Height of building i.e. AB = 160 feet.

A helicopter takes off from the ground 800 feet from the base of a building i.e. BC = 800 ft.

We are required to find what angle did the helicopter take off from i.e. ∠ACB

We will use trigonometric ratio .

$tan\theta = \frac{Perpendicular}{Base}$

$tan\theta = \frac{AB}{BC}$

$tan\theta = \frac{160}{800}$

$tan\theta = \frac{1}{5}$

$tan\theta = 0.2$

$\theta =tan^{-1} 0.2$

$\theta =11.3^{\circ}$

Thus the angle at which the helicopter take off from is 11.3°

3 0

4 years ago