The answer is 7.5for the question
Answer:
83 cm
Step-by-step explanation:
Let the length of the rectangle be L cm and the width be W cm.
L= 2W +3 -----(1)
Perimeter of rectangle= 2(length) +2(width)
2L +2W= 246 -----(2)
Substitute (1) into (2):
2(2W +3) +2W= 246
Expand:
4W +6 +2W= 246
Simplify:
6W +6= 246
Divide both sides by 6:
W +1= 41
W= 41 -1
W= 40
∴ width of the rectangle is 40cm.
Substitute value of W into (1):
L= 2(40).+3
L= 80 +3
L= 83
Thus, the length of the rectangle is 83 cm.
The volume of a sphere with respect to its diameter is:
V=(4πr^3)/3
V=(πd^3)/6 (because r=d/2 and r^3=(d^3)/8), we are given that d=4 so
V=64π/6 cm^3
V=32π/3 cm^2
V≈33.51 cm^3 (to nearest hundredth)
Answer:
1.75 !
Step-by-step explanation:
0.25 x 7
One orange price is 0.25, so you would multiply that by 7 to get the price of 7 oranges!
I'm not sure how to explain this, but if you write it out, and do the math, and move the decimal point correctly, you will get this answer!
Answer:
f(1) = 8, f(2) = 7
Step-by-step explanation:
Function: f(x)= 9-x
f(1) = 9-1 = 8
f(2) = 9-2 =7
