Answer:
I think true im sorry if its not
Answer:
l x w x h = 2,197
If l=w=h then it is a perfect cube.
The cube root of 2,197 is 13
Therefore, the cube is 13 x 13 x 13 inches.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
We can use the law of cosinse:
= − 2ab cos(C)
Suppose the two sides are a and b, and the angle betweent them is C.
= − 2*3*4 cos(60)
We can simplify this to get =25-12=13
c=
Answer choice B
Answer:
Streamers are $2.50 each
Balloons are $1.50 each
Step-by-step explanation:
Make a system of equations
3s + 15b = 30
2s + 4b = 11
Solve by elimination: multiply the top equation by 2 and the bottom equation by -3.
6s + 30b = 60
-6s -12b = -33
18b = 27
b = 1.5
Plug in 1.5 as b to find s
3s + 15(1.5) = 30
3s +22.5 = 30
3s = 7.5
s = 2.5
The streamers are $2.50 and the balloons are $1.50