Answer:
10 or 40
Step-by-step explanation:
We have the following equation
-4d²+200d-100= 1500
We want all the non zero on one side and so we subtract 1500
-4d²+200d-1600=0
Solve for d
4( -d²+50d-400)=0
factor (I can explain this part in depth if needed)
4(d-40)(d-10)=0
d=40
d=10
This means that the price either needs to be 40 or 10 dollars
27 ÷ 3 = 9
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C as the bass is flat and the two sides are straight so no curved edges ruling out all other options and definitely not A as a cross section is 2d
It’s D, because the height is 4cm and the width should be 8-5cm which equals 3 cm
You just do 79 times 100 and thats how. the answer is 7900 cents.