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Kaylis [27]
3 years ago
11

The formula for the surface of a cube is s 6s^2 where x is the length of one side. Find the length of the side of a cube with a

surface area of 150 square inches
a-5 inches
b-25 inches
c-30 inches
d-900 inches
Jack chose C as the correct answer. How did he get that answer?
Mathematics
1 answer:
Advocard [28]3 years ago
8 0
X=side length
6x^2 = surface area = 150
x^2 = 150/6=25
x=sqrt(25)=5
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H, it's asking for the total amount of money spent. so you add.

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3 years ago
The perimeter of an isosceles triangle is 65 centimeters. Find the length of the two equal sides when each is 10 centimeters lon
natita [175]

Answer: the length of each of the two equal sides is 25 centimeters

Step-by-step explanation:

Let x represent the length of each of the two equal sides. This means that the total length of the two longer sides is 2x.

Let y represent the length of the third side.

The perimeter of a triangle is expressed as the sum of the length of each side of the triangle. The perimeter of the isosceles triangle is 65 centimeters. It means that

2x + y = 65 - - - - - - - - - 1

Each of the equal sides is 10 centimeters longer than the third side. This means that

x = y + 10

Substituting x = y + 10 into equation 1, it becomes

2(y + 10) + y = 65

2y + 20 + y = 65

2y + y = 65 - 20

3y = 45

y = 45/3 = 15

Substituting y = 15 into x = y + 10, it becomes

x = 15 + 10 = 25

5 0
3 years ago
Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the curves about the given
Fed [463]
See attachment for one such shell. The volume is given by the sum of infinitely many thin shells like this, each with radius x and height determined by the vertical distance between the upper blue curve and the lower orange curve for any given x, i.e. 8e^x-8e^{-x}.

The volume is then

2\pi\displaystyle\int_0^1x\left(8e^x-8e^{-x}\right)\,\mathrm dx=16\pi\int xe^x(e^{2x}-1)\,\mathrm dx=\dfrac{32\pi}9(e^3-4)\approx179.677
7 0
3 years ago
PLZ HELP ME LLZ I WILL DO ANYTHING
____ [38]

Answer:

X=45

Step-by-step explanation:

45+3x=180

180-45=135

135/3=45

x has to be 45

x=45

4 0
3 years ago
Jasper needs 180 of string for his project how many yards did he buy.
andrew-mc [135]

Answer:

5 yards

Step-by-step explanation:

The measurements of the 180 should be Inches

Length of string Jasper needs = 180 inches

how many yards did he buy?

1 yard = 36 inches

Number of yards he needs = Length of string Jasper needs / inches per yard

= 180 inches / 36 inches

= 5 yards

Number of yards he needs = 5 yards

3 0
3 years ago
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