Answer:
8^1 = 8
So, x has to be 1/4 to make the exponent 1, and to make it equal to 8.
Let me know if this helps!
Answer:
x= 7 and -8
Step-by-step explanation:
hope this helps!
Answer:
C = 125
Step-by-step explanation:
Since a straight line is 180 degrees. We can conclude that:
10x + 15 + 5x = 180
And that:
C = 10x + 15
First we need to find the value of x to find C. So,
10x + 15 + 5x = 180
15x + 15 = 180
- 15 -15
15x = 165
15x/15 = 165/15
x = 11
So now, we need to substitute the values of x into C and solve it.
C = 10(11) + 15
= 110 + 15
= 125
Answer:
A.) x=90°
Step-by-step explanation:
Note:
The triangle shown is an isosceles triangle, which means that it has 2 congruent sides (as shown by the small intersecting lines), and this also means that it has two congruent angles.
We are given an angle measure adjacent to one of the missing angles. These two form supplementary angles, which means that they're sum is equal to 180°, or a straight line. So, to find:

y is the unknown angle. Solve for y:

y is 45°. Since this and the other angle are congruent, add:

Note:
Triangles angles will always add up to a total of 180°.
To find the missing angle x°, use:

These are the angles in a triangle. Substitute any known values and solve:

The missing angle x° is 90°.
:Done
To me i think it A but C kinda as well it tricky but me i chose a