Mathematics High School

The diameter D of a sphere is 18.6 cm. Calculate the sphere's surface area A
Use the value 3.14 fors, and round your answer to the nearest tenth.

Answers

Answer 1

Answer:

1086.3 cm²

Step-by-step explanation:

surface are of sphere = πD²

SA = (3.14)(18.6 cm)^2

SA = 1086.3 cm²

Related Questions

Charlie drove 360 miles in 5 hours.
At the same rate, how many miles would he drive in 8 hours?

Answers

Step-by-step explanation:

5 360

8 x

5x=360•8

x=576miles

The stem-and-leaf plot lists the number of coupons saved per person in a coupon club.

How many club members saved at least 41 coupons?



Enter your answer in the box.

A stem-and-leaf plot with a stem value of 1 with a leaf value of 2, 2, 4, 5, 7, a stem value of 2 with a leaf value of 8, 9, a stem value of 3, a stem value of 4 with a leaf value of 0, 1, 4, 5, a stem value of 5 with a leaf value of 0, and a stem value of 6 with a leaf value of 9.

Key: 1|2 means 12

Answers

Answer:

Your answers 5 :)

Step-by-step explanation:

I took the test and i did it in my head ignore the other person, thanks please mark brainliest!

Answer:

i have your answer!

Step-by-step explanation:

your answer is five, hope this helps

How long of a shadow would a 6-
foot man cast?​

Answers

Answer:

it depends on where the light source is

Please show work!!!!!!!!!!

Answers

Answer:

wouldn't it be 81 cause the inner triangle is just a mini version of the bigger triangle?

360-81= 279

279÷3= 93 (shorter side)

93+93= 186 (longer side)

360-279= 81

Please..!!!!!Help!!!!!!! Please!! Help!!!!

Answers

the 2 in the middle and the last one are the answers

Answer:

C D and F

Step-by-step explanation:

I checked my answers

What % of $7,000 = $1,750​

Answers

Answer:

I am sure it is 25%

Step-by-step explanation:

1750:7000*100 =

(1750*100):7000 =

175000:7000 = 25

Now we have: 1750 is what percent of 7000 = 25

tell me if i am correct or wrong!

25% is the correct answer

help me plsssssssssssssssssssssssssssss

Answers

ahh ok so a traingle has a total of 180 degrees

So you can subtract all the given angles you have (90 degrees and 42.7 degrees) from 180.

180-42.7-90=47.3 degrees :)

Find X. please help or show me how to do it

Answers

Answer:

x = 63

Step-by-step explanation:

a triangle is always 180 degrees, so you equation would be:

180 - 42 - 43 - 32 = x

180 - 42 - 43 - 32 = 63

so x = 63

Answer:

Step-by-step explanation:

a straight line  = 180 degrees

on the right side, where the angle is 32 it is vertically opposite to the right angle of the triangle then

Amelia usually runs 3/4 of a mile each day. If today
she only ran 1/3 of her usual distance, how far has
she run?
Give your answer as a fraction of a mile in its
simplest form.

Answers

Answer: 1/4 of a mile

Step-by-step explanation: 1/3 × 3/4

I need help im confused!!!

What is m∠A and what is m∠B?

Answers

Answer:

m∠A = 79°m∠B = 112°

Step-by-step explanation:

We have cyclic quadrilateral as all vertexes are on the circle.

As per property of cyclic quadrilateral, each pair of opposite angles are supplementary.

As we know supplementary angles add up to 180°.

m∠A + m∠C = 180° ⇒ m∠A = 180° - 101° = 79°m∠B + m∠D = 180° ⇒m∠B =  180° - 68° = 112°

five books cost¢21. what is the price cost of seven similar books​

Answers

Answer:

Your answer should be $29.40

Step-by-step explanation:

If you divide 21 by 5 you get 4.2, so each book costs $4.20.

4.2 x 7 = 29.4

Therefore, your total cost for 7 books will be $29.40

I hope this helps!

i can’t fail please help

Answers

Hey there!

The answer is 6:54

The time on the clock shows 6:20, because the hour hand is after the 6, and the minute hand is on the 4 (which we multiply by 5 to get the minutes).

If it takes her 8 minutes to walk to the bus, 10 to pack lunch, and 16 to get dressed, that's a total of 8 + 10 + 16 minutes, or 34 minutes.

So, we add that to the minutes, so 20 + 34 = 54, therefore the time is 6:54 when she arrives.

Have a terrificly amazing day! :)

Answer:

Yanice should get up at 5:43 to be on time for the bus.

The football players get ready to go to class at 8:17 A.M.

Gymnastics is 50 minutes longer than the piano lessons.

Hope this helps ;)

Giving brainlest and 20 points
What is the surface area of the solid?


A.
46 square inches

B.
15 square inches

C.
40 square inches

D.
23 square inches

Answers

Answer:

C. 40 square inches but i could be wrong


Which equation could represent the line of best fit for this data? HURRY HELP
ILL
MARK BRAINLIEST

Answers

The 1st one I think but not sure

PLS HELP MEEEE I need to do this fast

Answers

I think it’s this 5x+2= 5x+10
There are no values of x that make the equation true so the answer is no solution.

Explanation:When you combine

3-1/6 please help me I don’t feel like doing the math

Answers

Answer:

17/6

Step-by-step explanation:

if u need a mixed number do it urself

Jules buys a washing machine.
20% VAT is added to the price of the washing machine.
Jules then has to pay a total of £600.
What is the price Is the price of the washing machine with no VAT added

Answers

Answer:£500

Step-by-step explanation: 600 ÷ 1.05

Answer:

£500

Step-by-step explanation:

HELP ASAP WILL GIVE BRAINLIEST!! Write the equation in point-slope form for the line that contains the points
(-2,-3).(4.3)

Answers

Using y=mx+b

Slope-intercept form:

y=x-1

Point-slope form:

Y+3=1(x+2)

In which choice is y a nonlinear function of x?

Answers

B, it’s the only one that isn’t linear

A fair coin is tossed three times. What are all the possible outcomes? How many
total outcomes are possible

Answers

Answer:

2 outcomes

Step-by-step explanation:

the coin only has 2 sides so you can flip it 1000 times and you could only get 2 outcomes, unless it lands straight up and down

Please help im desperate. :)​

Answers

D - 6lb / $1 would be the answer

can you make a triangle with 5cm, 8cm, 15cm​

Answers

Answer:no because 2 sides of a triangle have to be equal to the other angle or greater than the other angle

Step-by-step explanation:

What is the answer for m/1 =

Answers

Answer:  133

=============================================================

Explanation:

The quickest way to get this answer is to add the angles given to get 87+46 = 133

This is through the use of the remote interior angle theorem.

Note how the angles 87 and 46 are interior, or inside the triangle. And also, they are not adjacent to the exterior angle we want to find. So that's where the "remote" portion comes in.

----------------

The slightly longer method involves letting x be the measure of the missing interior angle of the triangle.

The three interior angles add to 180

87+46+x = 180

133+x = 180

x = 180 - 133

x = 47

The missing interior angle of the triangle is 47 degrees.

Angle 1 is adjacent and supplementary to this 47 degree angle, so,

(angle1)+(47) = 180

angle1 = 180-47

angle1 = 133 degrees

This example helps confirm that the remote interior angle theorem is correct.

What is geometrical mathematical system?

Answers

A mathematical system is a set with one or more binary operations defined on it. – A binary operation is a rule that assigns to 2 elements of a set a unique third element. ▪ If 5 and 7 belong to N and addition is the binary. operation then 12 Is the unique “answer.”

Can someone help me with 6?

Answers

Answer:

you mesuare the apple to see if it greater or less than 3 centimeter  

Step-by-step explanation:

£450 is invested at 3% simple interest.
How much interest will be earned in 4 years?

Answers

Answer: $54

Explanation: First, do 450(1.03). Then, do the answer to that minus 450. (463.5-450) Finally, multiply the answer to that by 4 13.5(4) and you will get 54

Which is the expanded form of 567,000,200?
OA) 500,000,000 + 60,000,000 + 7,000,000 + 200
OB) Five hundred sixty-seven million, two hundreds
OC) 567,000 + 200
OD) 567 + 200

Answers

Answer:

According to me the answer should be 'a'

factor 54-12 with GCF

Answers

Factor of 12 and 56 is 6 .

Find the value of x for brainlieat

Answers

Answer:

I can automatically eliminate B and D because those values are two high. My guess is C 6.2.

Step-by-step explanation:

Please help me this is my final!!!

Answers

Answer:

n=10

Step-by-step explanation:

Because all exterior angles =360

so 360/36=10

hope this helps

Answer:

n=10

Step-by-step explanation:

(10-2)x180 = 1440

1440/10 (the angle of each interior) = 144

180-144 = 36

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