Since the big triangle is an isosceles one, we conclude that the angles of the left triangle are: 32, 90 and 3x-10. Sinche the sum of this angles have to be 180° we have:

$(3x-10)+32+90=180$

Solving for x, we have:

$\begin{gathered} (3x-10)+32+90=180 \\ 3x-10+32+90=180 \\ 3x=180+10-90-32 \\ 3x=68 \\ x=\frac{68}{3} \\ x=22.67 \end{gathered}$

Therefore, x=22.67 and the answer is A.

7 0

1 year ago

An alarm rings 8 times in 5 seconds. What is the unit rate ,in rings per second?

DedPeter [7]

1.6 rings per second

6 0

2 years ago

Read 2 more answers

If I ride 3 1/4 miles at 2/5 miles per minute how fast I’m going

Bogdan [553]

To get your answer, you would divide your distance by your speed. You should be going about 1.4 miles per hour.

3 0

3 years ago

Simplify the answer (3 to the 4th power and (3 to the negative 6th power)​

Simplify the answer (3 to the 4th power and (3 to the negative 6th power)