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valina [46]
4 years ago
7

A spheres radius is multiplied by 2. How is it’s surface area affected

Mathematics
1 answer:
dexar [7]4 years ago
3 0

Answer:

The surface area is multiplied by 3.

Step-by-step explanation:

If r is the radius of a sphere its surface area = 4(pi)r^2. If the radius is doubled then its surface area = 4(pi)(2r)^2 = 4*4(pi)r^2. So the surface area becomes 4-fold or the increase in surface area is 300%.

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What is the discount given on a jacket that was originally priced $90 and is now $72?
torisob [31]

Answer:

Step-by-step explanation:

The disCount will be the differenceb

7 0
3 years ago
What is the relationship between the two quantities?
Pavel [41]
The best and most correct answer among the choices provided by your question is the second choice or letter B.

<span>The relationship between the two quantities is negative correlation.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
7 0
4 years ago
PLEASE HEKP ME ITS DUE IN 10 MINUTES FIND THE MEASUREMENT OF B AND SHOW YOU WORK PLEASE.
Snezhnost [94]

Answer:

b=105

Step-by-step explanation:

x=35

5 0
3 years ago
15. Over what range of angles does the value of sin(O) consistently increase?
Ronch [10]

Answer:

D. 0° to 90°

Step-by-step explanation:

If we see curve of sin(o) on coordinate,  we will notice that value of sin curve increases from 0 to 90 degrees and then decreases from 90 to 180 degrees.

Hence option D is correct.

Alternatively

we see that

sin 0 = 0

sin 30 = 1/2

sin 45 = 1/\sqrt{2}

sin 60 = \sqrt{3} /2

sin 90 = 1

Thus, we see  that value of sin is increasing from 0 to 90

now lets see value of sin from 90 to 180

sin 90 = 1

sin 120 = \sqrt{3} /2

sin 135 = 1/\sqrt{2}

sin 150 = 1/2

sin 180 = 0

Thus, we see  that value of sin is decreasing from 90 to 180.

8 0
4 years ago
Hello I need the answer fast plssssss
wariber [46]

Answer:

32

Step-by-step explanation:

8x6=48

2x4=8

48-16=32

3 0
3 years ago
Read 2 more answers
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