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Iteru [2.4K]
2 years ago
15

The volume of a cylinder is 63pi cubic inches. Its height is 7 inches. Find the radius of the ball. Round your

Mathematics
1 answer:
netineya [11]2 years ago
6 0

Answer:

3 (or 3.0)

Step-by-step explanation:

The formula for the volume of a cylinder is v=\pi r^2h where v is the volume, r is the radius, and h is the height. We know the height is 7 inches and the volume of 63pi cubic inches, so plugging in gives:

63\pi=\pi r^2\cdot 7.

Dividing by 7\pi on both sides gives

r^2=9,

and simplifying and taking the positive root leaves r=3.

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Rachel used 18 centimeters of tape to wrap 6 presents. How much tape will Rachel need in all if she has to wrap 15 presents? Sol
rjkz [21]

Answer:

Rachel would need 45cm of tape to wrap 15 presents.

Step-by-step explanation:

Firstly we need to find how much is required to wrap one presnt: 18÷6=3.3cm of tape is needed to wrap one present.

Secondly to find how many she needs to wrap 15 we sinply multiply 15 by three and get 45.

I hope this helps you in any way.

8 0
3 years ago
Point B has coordinates (-2,-5). After a translation 4 units down, a reflection across the y-axis, and a
Ratling [72]

Answer:

2, -3

Step-by-step explanation:

4 units down is -9, then a reflection over y axis makes -2 2 6 units up makes -9 -3

5 0
3 years ago
Which of these lines could possibly intersect the graph of a function at more than one point? Select three that apply.
Vera_Pavlovna [14]
According to Vertical Line test, a vertical line only intersect the graph of a function at one point. Among the choices given, x = 4 is a vertical line. So this line cannot intersect the graph of a function at more than one point. The other three would apply. So the answer choices are A, C and D.
8 0
3 years ago
About 2,000,000 people visited the aquarium last year. If this number were rounded to the nearest million, what was the greatest
notsponge [240]
Okay, so there's a number rounded to the nearest million, in this case 2 million. So this tells me that the number of visitors is between 1,500,000 and 2,499,999. The reason why 1,499,999 doesn't count is because the hundred thousands digit is not 5 or above, so it doesn't count. It would round down to 1 million, not 2 million. The reason why 2,500,000 doesn't count, is because the hundred thousands digit is 5, so that rounds to 3 million, not 2 million. The greatest number of visitors that visited the aquarium has to be 2,499,999, because that's one digit away from 2.5 million, and the hundred thousands digit is a 4, not 5. The answer is 2,499,999
5 0
3 years ago
Jaymie wants to construct congruent angles with a compass and straightedge, while Annie wants to construct congruent segments wi
SashulF [63]

Jaymie will measure the segment and then place the point just across from the line's beginning point to create a congruent segment that shows the similarity between them.

<h3>What are the conditions of the congruent triangle?</h3>

Triangles that are equivalent in terms of size and form are known as a congruent triangle.

Segments will be built using the straightedge, and measurements will be taken using the compass. They will pick a starting point and draw a line using the straightedge, then use the compass to finish the job.

To make the congruent segment, Jaymie will measure the segment and then position the point that is opposite from the line's starting point.

Jaymie, on the other hand, will have to work a bit harder with the compass since she will need to draw a semi-circle in the original angle and transfer this measurement to the new line in order to create congruent angles.

To learn more about the congruent triangle refer;

brainly.com/question/12413243

#SPJ1

6 0
2 years ago
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