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Nadusha1986 [10]
3 years ago
11

What is the area of this figure? Enter your answer in the box.

Mathematics
2 answers:
seropon [69]3 years ago
5 0
The answer is 45 cm2
erik [133]3 years ago
5 0

Answer:

35

Step-by-step explanation:

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Solve for w (4w-5)(7-w)=0
nataly862011 [7]

Ask: When will (4w-5)(7-w) equal zero?

When 4w-5=0 or 7-w=0

Solve each of the 2 equations above

w = 5/4 , 7

7 0
3 years ago
A sphere and a cylinder have the same radius and height. The volume of the cylinder is . Amie found the volume of the sphere. He
dezoksy [38]

Amie's error while measuring the volume of a sphere is that <u>Amie should have multiplied 54 by 2/3</u>. Thus, the <u>first option</u> is the right choice.

In the question, we are given that a sphere and a cylinder have the same radius and height.

We assume the radius of the sphere to be r, and its height to be h.

Now, the height of a sphere is its diameter, which is twice the radius.

Thus, the height of the sphere, h = 2r

Given that the sphere and the cylinder have the same radius and height, the radius of the cylinder is r, and its height is 2r.

The volume of a sphere is given by the formula, V = (4/3)πr³, where V is its volume, and r is its radius.

Thus, the volume of the given sphere using the formula is (4/3)πr³.

The volume of a cylinder is given by the formula, V = πr²h, where V is its volume, r is its radius, and h is its height.

Thus, the volume of the given cylinder using the formula is πr²(2r) = 2πr³.

Now, to compare the two volumes we take their ratios, as

Volume of the sphere/Volume of the cylinder

= {(4/3)πr³}/{2πr³}

= 2/3.

Thus, the volume of the sphere/the volume of the cylinder = 2/3,

or, the volume of the sphere = (2/3)*the volume of the cylinder.

Given the volume of the cylinder to be 54 m³, Amie should have multiplied 54 by 2/3 instead of adding the two.

Thus, Amie's error while measuring the volume of a sphere is that <u>Amie should have multiplied 54 by 2/3</u>. Thus, the <u>first option</u> is the right choice.

Learn more about volumes at

brainly.com/question/12398192

#SPJ4

For the complete question, refer to the attachment.

6 0
2 years ago
What are the coefficients of this equation? 5(2j + 3 + j)
tekilochka [14]

Answer:

2 and 1 because they are directly next to a variable

7 0
3 years ago
1) 45% of what is 90?
densk [106]
1. 45*x/100=90
x=100*90/45
x=200

2. 24=x/100*52
x=24*100/52
≈46,15

4.125=30/100*x
x=125*100/30
x≈416,67




6 0
3 years ago
Read 2 more answers
If RT is 10 centimeters long, what is ST?
ale4655 [162]
The answer is 6 centimeters
3 0
3 years ago
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