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
geniusboy [140]
3 years ago
5

I need the area of a circle if the radius is 8ft

Mathematics
1 answer:
scZoUnD [109]3 years ago
8 0
Area of a circle is:

A = pi(r^2)
A = 3.14(8^2)
A = 3.14(64)
A = 200.96

hope this helps :)
You might be interested in
Where n=6 equals, 6 is a solution.
Brilliant_brown [7]

Answer:

yes

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help me solve step by step it's urgent​
NNADVOKAT [17]

Answer:

2i: 169.71

2ii: 0.17L

3a: 4×10⁻⁵

3b: 110011

Step-by-step explanation:

2i. The surface of the top and bottom of the tin is two times (top and bottom) π·r² = 2·π·3² = 18π cm².

The circumference of the circle is 2·π·r = 6π cm².

The area of the material connecting top and bottom is a rectangle of the tin height times the circumference: 6·6π = 36π cm².

This gives a total of  18π + 36π = 54π  cm².

With π approximated by 22/7 the total surface area is 54*22/7 ≈ 169.71.

Notice how the calculation is simple by waiting until the very last moment to substitute π.

2ii. The volume is the area π·r² of the circle times the height of the tin: 9π*6 = 54π cm³ ≈ 169.71 cm³.

Since 1L = 1000 cm³ the volume is 0.16971 litres, which should be rounded to 0.17 L.

3a: If we rewrite P as 36 x 10⁻⁴ and realize that 36/2.25 = 16, then the fraction can be written as

16 x 10⁻⁴⁻⁶ = 16 x 10⁻¹⁰.

The square root of that is taking it to the power of 1/2, so (16x10⁻¹⁰)^0.5 = 4x10⁻⁵ = 0.00004

3b: 1111 1111 is 255 in decimal. 101 is 5 in decimal. 255/5 is 51 in decimal. 51 in binary is 110011.

6 0
3 years ago
Measure each angle using a protractor
Artyom0805 [142]

Answer:

90*

Step-by-step explanation:

6 0
2 years ago
Solve this equation for a: 6a+3=45
fenix001 [56]

Answer: 7

Step-by-step explanation:

Step 1: Subtract 3 from both sides.

6a+3−3=45−3

6a=42

Step 2: Divide both sides by 6.

6a /6 = 42 /6

3 0
3 years ago
Easy Math, please help!
Lelechka [254]

Answer:

yes

Step-by-step explanation:

angles abc and angles rqp are corresponding because they are both congruent because they both equal to 180 degrees.

8 0
2 years ago
Other questions:
  • I need help on this question this is really really hard.
    11·2 answers
  • You buy 2 concert tickets. Each ticket costs $45.50. The shipping cost for the whole order is $12.00. Which equation represents
    9·2 answers
  • Find the slope of the line
    12·1 answer
  • What’s 325 devied by 13 and how do you solve it helpppp
    15·2 answers
  • Do the ratio 4/15 and 16/75 form a proportion
    8·1 answer
  • Which equation shows the point-slope form of the line that passes through (3, 2) and has a slope of ? y + 2 =(x + 3) y – 2 = (x
    11·2 answers
  • Find the product 12 ,-5<br> A. 7 <br> B. 17 <br> C. -60 <br> D. -2.4
    7·2 answers
  • X2-y2-x-y anyone help to solve this matter <br>​
    8·2 answers
  • Parallel lines s and t are cut by a transversal r.
    14·2 answers
  • Find the remainder when 8\10^18 + 1^18 is divided by 9.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!