what is the volume of a sphere if the diameter is 21 cm using formula v=4/3 pie (r3). use 3.14 for pie

Answers

Answer 1

Answer:

4846.59

Step-by-step explanation:

21/2= 10.5 as your radius

10.5^3(3.14)(4/3) = 4846.59


Related Questions

I really need help with thing I am in math class help this is due today

Answers

Answer:

C

Step-by-step explanation:

The triangle is doubled


Jenny recorded the weight of 5 dogs. Each dog weighed a different amount. She recorded the results
Which conclusion can be made about the interquartile range of Jenny's box plot?
a box plot.

A)
All the dogs weighed 15 pounds or less.

B)All the dogs weighed between 5 and 15 pounds.

C)The middle 50% of the dogs weighed between 5 and 15 pounds.

D)
The interquartile range was higher than it should be because of the dog
that weighed 20 pounds.

Answers

Answer:

C

Step-by-step explanation:

the middle 50% wold be the numerical values in the actual box part of the box plot.

Find the missing ANGLE

Someone plsss helpppp!!! I’ll give brainliest!!! :(((

Answers

The answer is triangle sum c is 74

15,19,23,__,31 find the number sequence

Answers

Answer:

27

Step-by-step explanation:

yes.

are you trying to find the missing number bc if so then its 27

15,19,23,27,31

Find the measures of the numbered angles in each rhombus

Answers

Answer:

2=41     1=49      3=49

Step-by-step explanation:

Angle 2 = 41 because it is directly across the given angle.

Angles 1 and 3 are equal, and the total number of degrees in the rombus are 180.

41+41=82

180-82=98

98 / 2 = 49

Angles and 3 both equal 49

Answer:

2=41°(Alternate Interior angles)

1=41°(diagonal of rhombus bisects the interior angles)

3=49°(180-82/2)

Step-by-step explanation:

Find the Volume please help​

Answers

Hopes this helps if wrong please correct me:

Answer:

183.35m

Tammy made $208 for 13 hours of work.
At the same rate, how much would she make for 9 hours of work?

Answers

Answer:

$144

Step-by-step explanation:

1) Divide $208 by 13 hours to find out how much money she would make for 1 hour of work.

208 ÷ 13 = 16

1 hour = $16

2) Multiply the amount of money she makes for 1 hour by 9.

16 × 9 = 144

She makes $144 for 9 hours of work.

I hope this helps! I would really appreciate it if you would please mark me brainliest! Have a blessed day!

Answer:

$144 for 9 hours of work.

Step-by-step explanation:

5. Each pair of polygons below are similar. Show your work! Solve for x:

Answers

Since they are similar, you need to find the ratio of similarity (I made up the term, there is probably a correct one that I can’t remember).

If you divide 16/40, you’ll find that that ratio is 2.5. So then you just multiply 16 x 2.5. You’ll get 18.

18 is the length of the top of the trapezoid.

You set 18=2x+4 and solve it algebraically. Subtract 4 from both sides.

14=2x
Divide by 2 and x=7

(You can also check that the ratio is right by 16/18 is the same decimal value as 40/45. You’ll get .88888...)

Solve the inequality for x: 1/2(2x + 4) = 3x -6

Answers

The answer for this problem is x=4

A small radio station can broadcast in a circular range with a radius of 20 miles. About how many square miles is the area covered by this range? Use 3.14 for π.

Answers

The requried range of the radio station is given as 1256 square miles.

What is an area circle?

The area of the circle is given by the pie times square of the radius.
A = πr², where r is the radius of the circle.

Here,
A small radio station can broadcast in a circular range with a radius of 20 miles.
The range is given by the area of the circle with given radius,
Area of the circle = πr²
Area of the circle = 3.14 × 20²
area of the circle = 1256 square miles

Thus, the requried range of the radio station is given as 1256 square miles.

Learn more about circle here:

brainly.com/question/11833983

#SPJ2

0540-0058= ???
In military time

Answers

Answer:

0442 (4:42 normal time)

btw plz give brainliest

Put the following equation of a line into slope-intercept form, simplifying all fractions.

Answers

Answer:

3x - y = -3

Step-by-step explanation:

divide everything by 4, the greatest common factor. That's all you need to do.

Answer: y=3x+3

Step-by-step explanation:

12x -4y= -12

subtract 12x from both sides

-4y= -12x-12

Divide everything by -4 to make y positive and alone

y=3x+3

What is the slope of the line through (-9,6) and (-3, 9)?

Answers

Answer:

1/2 think it is bc -9,6 and -3,9 are 1/2

+-√-49=+-
please help

Answers

Answer: 0 if I am not mistaken

A ball is dropped from a height of 192 inches onto a level floor. After the third bounce it is still 3 inches off the ground. Presuming that the height the ball bounces is always the same fraction of the height reached on the previous bounce, what is that fraction?

Answers

Answer: The required fraction = [tex]\dfrac18[/tex]

Step-by-step explanation:

Let the required fraction = [tex]\dfrac{p}{q}[/tex]

Given: Initial height = 192 inches

Height of ball after second bounce = [tex]\dfrac{p}{q}\times192[/tex]

Height of ball after third bounce = [tex]\dfrac{p}{q}\times\dfrac{p}{q}\times192=192\dfrac{p^2}{q^2}[/tex]

After the third bounce it is 3 inches off the ground.

So,

[tex](\dfrac{p}{q})^2192=3\\\\\\(\dfrac{p}{q})^2=\dfrac{3}{192}\\\\(\dfrac{p}{q})^2=\dfrac{1}{64}\\\\(\dfrac{p}{q})^2=(\dfrac{1}{8})^2\\\\ \dfrac{p}{q}=\dfrac{1}{8}[/tex]

Hence, The required fraction = [tex]\dfrac18[/tex]

What is (are) the solution(s) to the equation 23x−3=−13x−6?

Answers

From Question ,
23x-3 = 13x-6
Or, 23x-13x = -6+3
Or, 10x = -3
Or, x = -3/10
Therefore x = -3/10 ans

Hope this helps !

Please mark it as the brainliest

select all 4 of the correct answers, and I'll give you brainliest

Answers

Answer:1,2,3,5

Step-by-step explanation:

what are some ratios equivalent to 7:6

Answers

Answer:

14 : 12 , 21 : 18 and 28 : 24

Step-by-step explanation:

What is 273x 346 I need help like asp

Answers

Answer:

94458

Step-by-step explanation:

273 x 346 =94458

Answer:

just use a calculator

Step-by-step explanation:

94458

that is the answer

Simplify the following expressions. Assume all variables are positive.
Exponents in simplified form should all be positive.
(81)
1.
493 · 494
2.
3
(81)
3.(16x24)

Answers

1) 49^43/12
2)1/9
3) 2x^6

simplify:
2⁴ x 10³
(-5)³ x (-2)

Answers

Answer:

hope this helps

Step-by-step explanation:

Can someone help me?


What's 4/5 of 55?

Answers

Answer:

44 is 4/5 out of 55 (44/55 = 4/5)

Step-by-step explanation:

55 can be divided into fifths.

1/5 = 11 or 11/55

11 x 4 = 44

Hopefully this helps :3 Sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

Please help me...will mark brainiest

Answers

Answer:

x-121

Step-by-step explanation:

Answer:

x² - 22x + 121

Step-by-step explanation:

(x-11)² is the same as (x-11)(x-11)

multiply the x in the first parentheses by x and -11 in the other parentheses and multiply the -11 in the first parentheses by x and -11 in the other parentheses and add all together

x²- 11x - 11x + 121

x² - 22x + 121

The increased demand for vegetarian meals has caused an increase in the price of tofu. If the current cost of $2.99 per pound is increasing 6% per year, what will it cost in 5 years?

Answers

Answer:

R90,70

Step-by-step explanation:

[tex]2.99 \times \frac{6}{100} \times 5 = [/tex]

Answer:

y=4, or $4

Step-by-step explanation:

a=initial amount

b=growth

+6%=growth

100+6=106

106/6=1.06

equation: y=2.99(1.06)^x

2.99(1.06)^5

around 4

What is the solution given the expression 7x^-2 when x=3 and y=9 ?

Answers

Answer:

252

Step-by-step explanation:

Determine the y intercept

Answers

Answer:

-9

Step-by-step explanation:

-9 would be the answer because it is 9 feet BELOW sea level

It takes 45 min for Faucet A to fill a tank, and it takes Faucet B 63 min. How many minutes will it take the two faucets to fill the tank together?

Answers

Answer:

the total minutes taken together is 26.25 minutes

Step-by-step explanation:

The computation of the number of minutes that required to fill the tank together is shown below:

[tex]\frac{1}{45} + \frac{1}{63} = \frac{1}{x}\\\\\frac{7 + 5 }{315} = \frac{1}{x} \\\\\frac{12}{315} = \frac{1}{x} \\\\12x = 315\\x = 26.25[/tex]minutes

Hence, the total minutes taken together is 26.25 minutes

Which fraction is equivalent to 4 over -9 ? (5 points)

A) 4 over 9

B) -4 over -9

C) 9 over 4

D) -4 over 9

Answers

Answer:

c is the best answer for this

Write the mixed number as a percent.
[tex]1 \frac{1}{4} [/tex]

Answers

125% I am pretty sure

If u can help please do

Answers

Answer:

the first one is 240

the second one is 280

the third one is 200

The answers that would be discarded would be 220, 360 and 500

Step-by-step explanation:

Hey There!

So for this problem all we have to do is plug in the hours worked and drones sold into the expression 10h+40d

For the first one we just plug in 8 for hours (because he worked 8 hours) and 4 for drones ( because he sold 4 drones )

so we would have 10(8) + 40(4)

10x8=80

40x4=160

160+80=240 So 240 would go with the first one

For the second one we plug in 4 for hours ( because he worked 4 hours) and 6 for drones ( because he sold 6 drones)

so we would have 10(4)+40(6)

10x4=40

40x6=240

240+40=280

So 280 would go with the second one

For the third one we plug in 12 for hours ( because he worked 12 hours) and 2 for drones ( because he sold 2 drones)

so we would have

12(10)+2(40)

12x10=120

2x40=80

120+80=200

so 200 would go with the third one

hope this helps :)

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