The surface area of the cylinder to the nearest tenth is: 628.3
The surface area without rounding is: 628.32
Answer:
1323 rounds to 1320
443 rounds to 440
409 rounds to 410
1320 - (440 + 410) =
1320 - 850 =
470 <=== malcolm has about 470 miles left to go
Step-by-step explanation:
In this item, we are given with the radius equal to 22 cm.
This measurement of the radius is the hypotenuse of the 30°-60°-90° triangle formed with the half the measurement of the side of the equilateral triangle being opposite to the 60° and equal to the hypotenuse times (1/2)(√3)
If we let s be the side of the triangle then,
s/2 = r(1/2)(√3)
Multiplying the equation by 2,
s = r√3
Substituting,
s = (22 cm)(√3) = 22√3
The area of the equilateral triangle is computed through the equation,
A = (√3 / 4)(s²)
Substituting,
<em> A = (√3 / 4)(22√3)² = 628.7 cm²</em>
Therefore, the answer to this item is the first choice.
4/7 5/8 6/9 are some possible answers
Answer: 84
Step-by-step explanation:
Let the total number of boats on the marina be x.
Then, The number of white boats=
then the remaining boats=
Now, 4/7 of the remaining boats are blue.
Thus, the number of blue boats=
The rest of the boats (red boats)=
The number of red boats=9
Thus,
The total number of boats in the marine = 84