12. since the straws are 4 inches long and she wants to cut them into 1/2 in you would get eight 1/2 pieces on that one straw but since she has two straws she has sixteen 1/2 pieces so no she does not have enough to cut twenty 1/2 pieces
The two rings on angle I and H mean they are the same. You add those three angles together (280) then subtract it from 360 if it has four angles.
The answer is 80.
Answer:
i think its 40
Step-by-step explanation:
Answer:
Step-by-step explanation:
hello :
put a=-3 and n=4 in : 3n2 – 2an
you have : 3(4)² – 2(-3)(4) =3(16)+6(4) =48+24 = 72
Step-by-step explanation:
- First, the radical needs to be alone on one side of the equation, if there is - 4, - 3 next to it then you'll have to transfer it to the opposite side like that:
5. (y+7)^0.5 - 4=4
(y+7)^0.5=8......
- Second, you need to square the two sides of the equation :
5.((y+7)^0.5) ^2=8^2
Y+7=64
Y+7-7=64-7
Y=57
Note: if the radical's index is (2) then you'll square the two sides of the equation, but if the index is (3) you'll have to cube the two sides of the equation, "look at the exercises 9,10"