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
dmitriy555 [2]
2 years ago
12

Please help me , at least do one and explain it please .

Mathematics
1 answer:
Len [333]2 years ago
7 0

9514 1404 393

Answer:

  1. 113.0 cm²
  2. 2464.0 in²
  3. 95.0 ft²

Step-by-step explanation:

1. The area of a circle is given by the formula ...

  A = πr² . . . . . where r is the radius

The radius is shown as 6 cm, so the area is ...

  A = (3.14)(6 cm)² = 113.0 cm²

__

2. The radius is shown as 28 in. We note that this is a number divisible by 7, so we choose 22/7 for π.

  A = (22/7)(28 in)² = 2464 in² . . . . see comment

__

3. The radius is half the diameter, so is 11/2 = 5.5 ft. Then the area is ...

  A = (3.14)(5.5 ft)² = 95.0 ft²

_____

<em>Additional comment</em>

If you use a more exact value of π for problem 2, the area is 2463.0 in². If you use 3.14 as the value of π, the area rounds to 2461.8 in². For these values of pi (3.14 or 22/7), the answer is only good to about 3 significant digits. 2464 has more significant digits, so digits beyond the first 3 may be in error.

You might be interested in
Graph y &gt; -1/3x+5<br><img src="https://tex.z-dn.net/?f=y%20%3E%20%20-%20%20%5Cfrac%7B1%7D%7B%203%20%7D%20x%20%2B%205" id="Tex
ad-work [718]

Explanation:

The function is y>-\frac{1}{3} x+5

To graph the function, let us find the x and y intercepts.

To find x-intercept, let us substitute y=0 in the function y>-\frac{1}{3} x+5

\begin{aligned}0 &=-\frac{1}{3} x+5 \\-5 &=-\frac{1}{3} x \\x &=15\end{aligned}

Thus, the x-intercept is (15,0)

To find the y-intercept, let us substitute x=0, we get,

\begin{aligned}&y=-\frac{1}{3}(0)+5\\&y=5\end{aligned}

Thus, the y-intercept is (0,5)

The graph has no asymptotes.

To plot the points in the graph, we need to substitute the values for x in the function y>-\frac{1}{3} x+5, to find the y-values.

The points are (-2,5.667),(-1,5.333),(1,4.667),(2,4.333),(3,4). The image of the graph and table is attached below:

6 0
3 years ago
The Symphony
lord [1]
Answer is 12.50. u can comment on my answer if you would like to see how that is the correct answer :)
5 0
3 years ago
9+8{7•6-5[4+(3-2•1)]}=?​
34kurt

Answer:

145

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

9+8{7*6-5[4+(3-2*1)}]}

9+8{7*6-5[4+1]}

9+8{7*6-25}

9+8{42-25}

9+136

145

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!

5 0
3 years ago
I/3 is equivalent to
IgorC [24]
2/6, 3/9, 4/12, 5/15, 6/18 ect.
Hope this helped!
5 0
3 years ago
You use for gallons of water on 14 plants in your garden. At this rate how much water will it take to water 35 plants?
nataly862011 [7]
The answer would be 10! I divided the number of plants that you can water with 4 gallons (14) by, well, the number of gallons it takes to water them (4) and got 3.5 (14 / 4 = 3.5), the number of plants you can water with one gallon. I then divided the number of plants you need to water (35) by the number of gallons it takes to water one plant (3.5) and came up with 10. I hope this helps you!
4 0
3 years ago
Other questions:
  • The width of a rectangle is 33 centimeters. The perimeter is at least 776 centimeters. Write and solve an
    9·1 answer
  • What is 77/200 in decimal form. How to work it out
    7·2 answers
  • Brian flips two coins. How many are in the sample space for flipping two coins?
    6·1 answer
  • No asking bc I have most of it myself but helping would be great
    15·1 answer
  • Select the correct answer.
    7·1 answer
  • The scatter plot below displays the elevation and mean number of clear days per year of 14 U.S. cities. Two lines
    6·1 answer
  • 61 divided by 3427?
    11·1 answer
  • Nick and Linda are paid 33.25 for their work. Nick worked 1.5 hours, and Linda worked 2 hours. They split the money according to
    9·1 answer
  • 1. A line passes through the point (2, k) and (4k, 5) and has a slope of 1/2 . Find the value of k.
    9·1 answer
  • Which pair of equations generates graphs with the same vertex?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!