The answer is B
I subtracted the 2 fractions.
Solve what? theres nothing
The answer is A. The two should be the same
Answer:
95 degrees
Step-by-step explanation:
since angles 1 and 4 are vertical angles, they are congruent
3x+10=4x-15
3x-4x=-15-10
-x=-25
x=25
x=25 degrees
angles 4 and 7 are supplementary due to them being alternate exterior angles
lets find the measure of angle 4:
4x-15
4*25-15
100-15
85 degrees
Now, lets find the angle measure of angle 7:
85+x=180
x=180-85
x=95
So, the angle measure of angle 7 is 95 degrees
14 - 6.2 * (-3 -7)
According to PEMDAS, we do the parentheses first.
-3-7=-10
Next we do what is outside the parentheses
14-6.2=7.8
Then we multiply both answers together.
7.8*-10 = -78
A.-78
