Answer:
44m
Step-by-step explanation:
A = r² = 154
= 22/7 * r² = 154
= r² = 154 * 7/22
= r² = 49
= r = √49
= r = 7m
Perimeter of circle = 2r
= 2 * 22/7 * 7
= 44/7 * 7
= <u>44 m</u>
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Answer:
( 7e + f ) - 25 = total
Step-by-step explanation:
(Emma + Frank) - Coupon = TOTAL
( 7e. + f ) - 25 = TOTAL
Answer:
<, -4
Step-by-step explanation:
-8x-20<12
add 20 to both sides
-8x=32
divide both sides by -8
x=-4
Step-by-step explanation:
Use the sine and cosine trig functions
21) cos(52)=13/x
x=13/cos(52)
x=21.1
22) sin(75)=6/x
x=6/sin(75)
x=6.2