Answer: 82975.68 apex
Step-by-step explanation:
Let the width be x.
Length = 5 + x
Perimeter = 58
2(l + w) = 58
2(5 + x + x) = 58
2(5 + 2x) = 58
10 + 4x = 58
4x = 48
x = 12
Hence, the length is 17 cm and the width is 12 cm.
The two angles shown are vertical angles. They form when you cross two lines. They are opposite one another. Note: They don't have to be vertically up and down in relation to each other. It's possible to have them horizontally side by side like this.
So because they are vertical angles, they are congruent. This means they are equal in measure
x+90 = 4x
x+90-x = 4x-x
90 = 3x
3x = 90
3x/3 = 90/3
x = 30
Therefore the answer is choice C) The value of x is x = 30
We can check it by plugging this into the original equation above
x+90 = 4x
30+90 = 4*30
120 = 120
our answer checks out
Answer:
add the whole numbers. -9+10=1
1 2-3/7
remove one digit from the whole number:. 1-1=0
add the denominator to 2=7+2=9
:. 9-3/7=6/7
answer=6/7
