Answer: C
Step-by-step explanation:
The area of a circle is ∏r2- (Pi)(Radius)-squared
The Answer is C
Hey there! :D
Supplementary= 180
180= 3x+10+x
x= the first angle I put 3x because it is 3 times the other one, and 10 more.
Now, solve.
180= 4x+10
Subtract 10.
170=4x
Divide both sides by 4.
x=42.5
That is the measure of the first angle.
42.5*3= 127.5
Now, add 10.
137.5 is the second angle.
We can add them to make sure.
137.5+42.5= 180 <== this works
I hope this helps!
~kaikers
Answer: 1588 in^2
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Part 1:
Shape: Rectangular Prism
Formula: SA = 2(wl+hl+hw)
SA = 2(wl+hl+hw)
SA = 2(12(20)+5(20)+5(12))
SA = 800 in^2
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Part 2:
Shape: Triangular Prism
Formula: SA = bh + (s1+s2+s3)H
SA = bh + (s1+s2+s3)H
SA = (12)9 + (12+11+11)20
SA = 108 + 34(20)
SA = 788 in^2
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Part 3:
*Add surface areas together*
800 + 788 = 1588 in^2
Answer:
a) 6x + 18 = 84
b) 11 yards
Step-by-step explanation:
a) You have that Jennifer made 6 identical curtains. If you chose x as the number of yards of fabric used for one curtain, you have that the total number of yards in the 6 curtains o fabric is
Furthermore, if you sum 18 yards to the 6x yards, the total amount of yards must be 84. Thus, you have the following equation:
b) Next, you solve the equation for x:
Then, 11 yards were use to make each curtain.