Answer:
x=28
Step-by-step explanation:
180-42=138 since a triangle adds up to 180
2x+10+3x-12=138 then combine like terms
5x-2=138 add 2 to both sides
5x=140 divide each side by 5
x=28
Answer:
$1.98
Step-by-step explanation:
6%=0.06
33*0.06=1.98
204 is my answer. Hope it helps.
Answer:
56
Step-by-step explanation:
2a^2b+5ab-4
substitute a & b:
2(-4)^2(5)+5(-4)(5)-4
2(16)(5)+5(-4)(5)-4
160-100-4=56
Answer:
i think it might be 10 im sorry if im wrong
Step-by-step explanation:
The perimeter of a circle is π × d where d is the diameter so half of that is 1/2 π × d. But If you are going to walk around a semicircle you need to go half way around the circle and then across a diagonal to get back to where you started so the perimeter is 1/2 π × d + d.