1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
blsea [12.9K]
2 years ago
10

Please help me with all 6 questions ASAP DUE SOON AND SHOW WORK !!!!

Mathematics
2 answers:
ipn [44]2 years ago
5 0

Answer:

654 mutiply 78 plus is 28

Yuki888 [10]2 years ago
5 0

Answer:

7. V = pi(r)^2(h)

   V = pi(7)^2(20)

   V = 3078.76

8. Same formula as 7.

V = 502.65

10. Same formula again

V = 62.83

11. V = 4/3*pi(r)^3

    V = 4/3*pi(6)^3

    V = 904.78

You might be interested in
A machine makes 70 springs each hour. How many springs will the machine make in 8 hours?
umka2103 [35]
70×8= 560
560 springs an hour
4 0
3 years ago
Read 2 more answers
Write a decimal equation that has a product of 3.15 do not use one as a factor
Marrrta [24]
3+ 0.15= 3.15?
or
3x-0.45=9?
Hope this helps. :)
3 0
3 years ago
2.2a+3.4b=1.2a+2.6 solve for a
Ilia_Sergeevich [38]

Answer:

A = 2.6-3.4b

Step-by-step explanation:

4 0
3 years ago
Solve for x. round to the nearest hundredth if necessary.
iris [78.8K]

Answer: x=11.47

Step-by-step explanation:

Given the angle of 55 degrees, you know that the adjacent side is "x" and the length of the hypotenuse is 20.

Therefore, you need to remember the following identity:

cos\alpha=\frac{adjacent}{hypotenuse}

Then, knowing that:

\alpha=55\°\\adjacent=x\\hypotenuse=20

 You need to substitute these values intocos\alpha=\frac{adjacent}{hypotenuse}:

 cos(55\°)=\frac{x}{20}

Now, you can solve for "x":

20*cos(55\°)=x\\x=11.471

Rounded to the nearest hundreth:

x=11.47

6 0
3 years ago
56 points for whoever answers correctly !
vladimir2022 [97]

We need to use what we know about rectangles to get:

1)

  • Total length = 2*W + 8ft
  • Total width = W + 8ft

2) area = 2*W^2 + 24ft*W + 64ft^2

<h3>Working with rectangles:</h3>

We know that rectangles are defined by two measures, width W and length L.

Here we do know that the length of the pool is twice the width, and the width is W, then the length of the pool is:

L = 2*W

And we also have a sidewalk of 4ft all around the pool, now we want to get:

1) The total length and the total width.

This will be equal to the length/width of the pool <u>plus twice the width of the sidewalk</u> (we add it twice because is in both ends) then we have:

  • Total length = L + 2*4ft = 2*W + 8ft
  • Total width = W + 2*4ft = W + 8ft

2) Now we want to get an expression for the total area of the pool.

Remember that for a rectangle the area is just the product between the width and the length, so to get the area of the pool with the sidewalk we just take:

area = (total length)*(total width)

area = (2*W + 8ft)*(W + 8ft) = 2*W^2 + 3*W*8ft + 64ft^2

area = 2*W^2 + 24ft*W + 64ft^2

This is the equation that gives the total area as a function of W, the width of the pool.

If you want to learn more about rectangles, you can read:

brainly.com/question/17297081

6 0
3 years ago
Other questions:
  • 7.2 x 12 x 0.23 = ? Round to the nearest hundredth. 
    5·2 answers
  • Please tell the answer for the brainliest and please explain
    7·1 answer
  • A new car has a sticker price of $25,550, while the invoice price paid on it was $19.990 What is the percent amount of markup?
    11·2 answers
  • The weight of a box of chocolates is 2.2 pounds. After taking out 75% of the chocolates, the remaining chocolates and the box we
    10·1 answer
  • Jewish people light a menorah on each of the 8 nights. On the first night, 1 candle plus the shamash candle is lit. On the secon
    13·1 answer
  • Kaitlin needs 254 programs for the school play on Thursday. How many boxes of programs will she need, given that each box contai
    14·1 answer
  • When creating equivalent fractions (creating common denominators) you only need to change the denominators.
    13·1 answer
  • PLEASE HELP ME I NEED IT DONE TODAY HELP PLEASE I AM ABOUT TO CRY!!!! IF YOU UPLOAD A FILE I WILL REPORT
    14·1 answer
  • Ryan can eat 3 hot dogs in 2 minutes at this rate, how many hot dogs could he eat in 7 minutes
    12·2 answers
  • Please help. I need this urgently<br>Please no links please​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!