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
GaryK [48]
3 years ago
6

A student was to find the area of a circle. By mistake he used the value 3.41 instead of 3.14, the value of pi; his answer was c

onsequently 10.2 too large. Find the radius of the circle.
Mathematics
2 answers:
julia-pushkina [17]3 years ago
6 0
<span>0.5 is the answer plz mark me as brainliest answer</span>
sammy [17]3 years ago
5 0
Area=pir²


areamistake=31.4r²
areactual=3.14r²

if
31.4r² is 10.2 bigger than 3.14r²
then
31.4r²=10.2+3.14r²
minus 3.14r² from both sides
28.26r²=10.2
divide both sides by 28.26
r²=0.36093418259023354564755838641189
squaer root both sides
r=0.60077798111301777772277024274837
about 0.6 units

the radius is 0.6 units

You might be interested in
Tyler walked 6 miles in 3 hours. What was his walking rate in miles per hour
BARSIC [14]

Answer:

This comes out to 2 mph.

Step-by-step explanation:

Reduce the following fraction:

 6 miles

---------------

  3 hours

This comes out to 2 mph.

8 0
3 years ago
What is the area of this triangle?
ryzh [129]

Answer:

what triangle????????????????????????????

3 0
3 years ago
Anyone wanna give me stuff in rocket league pc hehehehehe
adell [148]

Answer:

not really hehehehehe

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Michelle has $8 and wants to buy a combination of dog food to feed at least two dogs at the animal shelter. A serving of dry foo
Ghella [55]

Answer:

PART A: Inequality (a)

Solve for y

The graph of y ≥ ⅓(8-x) is represented by the upper red line and all points in the shaded area below it. The line is solid because points on the line satisfy the conditions.

 Inequality (b)

Solve for y

The graph of y ≥ 2 - x is represented by the lower blue line and all points in the shaded area above it. The line is solid because points on the line satisfy the conditions. The solution lies in the purple area. It consists of all combinations of x and y that make y ≥ ⅓(8 - x) and y ≥ 2 - x. A practical but not a mathematical condition is that all values of x and y must be zero or positive numbers (for example, you can't have -2 servings of food), so I have plotted only the numbers in the first quadrant.

PART B: If a point is a solution of the system, then the point must satisfy both inequalities of the system.

For x=8, y=2. Verify inequality A  is not true. So the point does not satisfy inequality A. Therefore, the point is not included in the solution area for the system.

PART C: I choose the point (3,1) which is included in the solution area for the system.

That means Michelle buys 3 serves of dry food and 1 serving of wet food.

Step-by-step explanation:

Plz mark Brainliest?

3 0
3 years ago
What is the partial fraction decomposition of StartFraction 8 x + 19 Over (x + 8) (x minus 1) EndFraction? StartFraction 3 Over
hoa [83]

The partial fraction decomposition is \frac{8x + 19}{(x + 8)(x - 1)} = \frac{5}{x + 8} + \frac{3}{x - 1}

<h3>How to determine the decomposition?</h3>

The fraction is given as:

\frac{8x + 19}{(x + 8)(x - 1)}

Split the fraction as follows:

\frac{8x + 19}{(x + 8)(x - 1)} = \frac{A}{x + 8} + \frac{B}{x - 1}

Take the LCM

\frac{8x + 19}{(x + 8)(x - 1)} = \frac{Ax -A + Bx + 8B}{(x + 8)(x -1)}

Cancel the common factors

8x + 19 = Ax - A + Bx + 8B

By comparison, we have:

Ax + Bx = 8x

-A + 8B = 19

This gives

A + B = 8

-A + 8B = 19

Add both equations

9B = 27

Divide by 9

B = 3

Substitute B = 3 in A + B = 8

A + 3 = 8

Solve for A

A = 5

So, we have:

\frac{8x + 19}{(x + 8)(x - 1)} = \frac{5}{x + 8} + \frac{3}{x - 1}

Hence, the partial fraction decomposition is \frac{8x + 19}{(x + 8)(x - 1)} = \frac{5}{x + 8} + \frac{3}{x - 1}

Read more about partial fraction at:

brainly.com/question/12783868

#SPJ1

6 0
2 years ago
Other questions:
  • 16) Assuming that the number of shoppers who buy a packet of crackers is approximately normal with a mean of 20 and standard dev
    14·1 answer
  • 1
    8·2 answers
  • You weigh a gallon of 2% milk in science class and learned that it is approximately 8.4 pounds your past him up to the next grou
    12·2 answers
  • The larger cube’s volume is about blank cm
    7·1 answer
  • the difference of two positive numbers is 8. the larger is twice the smaller decreased by 7. find the two numbers
    15·1 answer
  • What's the area of the following triangle?
    11·2 answers
  • One day, a person went to a horse racing area. Instead of counting the number of humans an horses, he conuted 74 heads and 196 l
    14·1 answer
  • HELLO EVERYONE IT WOULD BE GREAT IF YOU CAN HELP ME IM ABOUT TO FAIL MY CLASS
    9·1 answer
  • An angle that measures between 90 and 180° is called?
    9·1 answer
  • 5^x × 25^2= 5^12<br>solve carefully.​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!