All categories

3 years ago

How do you solve this?

Mathematics

1 answer:

Rus_ich [418]3 years ago

4 0

Answer:

x=25°, y=10°

Step-by-step explanation:

∠A+∠B=180°

8y+10y=180°

18y=180°

y=10°

∠B+∠C=180°

10y+4x-20°=180°

10*10°+4x=180°+20° (y=10°)

100°+4x=200°

4x=200°-100°

4x=100°

x=25°

You might be interested in

Solve T + M = R, for T a. T = R + M c. T = R - M b. T = M - R d. T + R = M

levacccp [35]

Answer: C ; T = R - M

Step-by-step explanation:

5 0

3 years ago

A rectangular prism has a length of 414 in., a width of 3 in., and a height of 114 in.

pshichka [43]

I would say B. Volume = L x W x H

5 0

3 years ago

Read 2 more answers

How to Simplify 69/80

liraira [26]

It's already reduced it remains as 69/80 because the is no greater common factor between the two.

3 0

3 years ago

(11-6)^2+6x2-(3+3)^2 A. 0 B. 1 C. 16 D. 26

Dahasolnce [82]

Answer: =1

Step-by-step explanation:

$\left(11-6\right)^2+6\cdot \:2-\left(3+3\right)^2$

$=5^2+6\cdot \:2-\left(3+3\right)^2$

$=5^2+6\cdot \:2-6^2$

$=25+6\cdot \:2-6^2$

$=25+6\cdot \:2-36$

$=25+12-36$

$=1$

3 0

2 years ago

Determine the factors of x2 − 7x − 10. (5 points) a (x + 2)(x − 5) b Prime c (x − 2)(x + 5) d (x + 10)(x − 1)

Savatey [412]

For this case we must factor the following expression:

$x ^ 2-7x-10$

To factor, we must find two numbers that when added together give -7 and when multiplied by -10.

It is observed that there are not two whole numbers that comply with the aforementioned.

Thus, the following equation applies:

$x = \frac {-b \pm\sqrt{b ^ 2-4 (a) (c)}} {2 (a)}$

Where:

$a = 1\\b = -7\\c = -10$

We replace:

$x = \frac {- (- 7) \pm \sqrt {(- 7) ^ 2-4 (1) (- 10)}} {2 (1)}\\x = \frac {7 \pm \sqrt {49 + 40}} {2}\\x = \frac {7 \sqrt {89}} {2}$

So, the roots are:

$x_ {1} =\frac {7+ \sqrt {89}} {2}\\x_ {2} =\frac {7- \sqrt {89}} {2}$

Answer:

$x_ {1} =\frac {7+ \sqrt {89}} {2}\\x_ {2} =\frac {7- \sqrt {89}} {2}$

6 0

3 years ago