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
balandron [24]
3 years ago
13

4) The area of a piece of pie in the shape of a sector is 7.1 in. The angle of the sector is 40°. Find the diameter of

Mathematics
1 answer:
elixir [45]3 years ago
4 0

Answer:

Step-by-step explanation:

Area of sector = angle/360 * pi * r^2

7.1 = 40/360 * 22/7 * r^2

7.1 = 1/9 * 22/7 * r^2

63.9 = 22r^2/7

r^2 = (7 * 63.9)/22

r^2 = 20.331818181818

r = square root of 20.331818181818

r = 4.51

d = r * 2 = 4.51 * 2 = 9.02

You might be interested in
The area of a rectangle is 51 square inches. If the width of the rectangle is 6 inches, what is the length?
Assoli18 [71]
The length of the rectangle is 8.5 inches.
3 0
3 years ago
Read 2 more answers
Which is perpendicular to the line y=-3x-8y
atroni [7]

Answer:

I believe the answer is y = -7/3x

Step-by-step explanation:

When you rearrange the equation, y = -3x - 8y, you will get -7y = -3x.

We want the equation to be equal to y by itself. So we divide -7 from both sides, giving us the equation y = 3/7x.

The graph that is perpendicular to y = 3/7x is it's reciprocal: y = -7/3x

4 0
2 years ago
Read 2 more answers
Sally makes 7 out of every 10 shots she takes during practice. If this pattern were to continue, how many would she make during
Levart [38]

Answer:

21

Step-by-step explanation:

  • 7 for first 10 shots
  • 7 for another 10 shots
  • 7 for last 10 shots
4 0
3 years ago
Read 2 more answers
Please help! Dont get it wrong pls
Vaselesa [24]

Answer:

5.4 > x > 2.8

Step-by-step explanation:

Sum of two sides is always greater than the third side

Case1 :

4.1 + 1.3 > x

5.4 > x

Case2:

4.1 + x > 1.3 or 1.3 + x > 4.1

x > 1.3 - 4.1 or x > 4.1 - 1.3

x > - 2.8 or x > 2.8

Note that it is obvious x is not -ve so neglect -2.8. x > 2.8

Hence,

5.4 > x > 2.8

5 0
3 years ago
Read 2 more answers
Multiply a number by 2 and then dividing by 3 is the same as multiplying by what number??
dangina [55]
It is the same as multiplying by 2/3, the equation being 2/3n n being the number
3 0
3 years ago
Other questions:
  • Could someone please help?
    12·2 answers
  • I'm In need Of help guys on math this assignment is due at 1:45 i'm stuck on these couples of questions I'm willing to send $3 p
    12·1 answer
  • A geodesic dome has a radius of 54 feet. What is the volume of the dome? Use 3.14 for pi.
    14·1 answer
  • Wanda Withdrew or deposited money each day this week. her beginning balance was $105.65. If she spent $43 on gas, $12 at the gro
    5·1 answer
  • The students in the cooking club brought sugar to class they each brought 3,4,5and 6cups of sugar respectively they divided the
    6·1 answer
  • The formula for the lateral surface area of a cylinder is S = 2trh , where r is the radius of the
    5·1 answer
  • Write the fraction 13/25 as a decimal. Show work
    6·2 answers
  • Which points on the number line are 8 units away from 0?
    11·2 answers
  • HELP ME PLS ASAP <br><br> a and b
    10·1 answer
  • Eleven upright dominos of increasing height are lined up to be knocked down. The dominos are numbered 0 to 10. The smallest domi
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!