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3 years ago

Use the formula for the area of a circle to solve for the radius of the circle if the area is 78.5cm^2

Mathematics

1 answer:

postnew [5]3 years ago

5 0

Answer:

Area = PI * radius^2

radius = Sq Root (Area / PI)

radius = Sq Root (78.5 / PI)

radius = Sq Root (24.9873260654)

radius = 4.9987

radius = 5 (rounded)

Step-by-step explanation:

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Of the last 100 customers entering Best Buy, 25 buy a computer. If the classical probability assessment applies, the probability

Yuliya22 [10]

Answer:

1/4

Step-by-step explanation:

The classical probability assessment works based on the principle that the probability of an event occurring is equal to the number of times the event occurs divided by total number of outcomes.

That is:

P(A) = n(A) / N

Therefore, the probability that the next customer will buy a computer will be:

P(c) = 25 / 100 = 1/4

7 0

4 years ago

6 An account pays

Sergio039 [100]

Answer: £122.4

Step-by-step explanation:

Given

The rate of interest is 4%

The principal invested is £1500

the time period is 2 years

Compound interest is given by

$C.I.=P(1+r\%)^t-P$

put values

$C.I.=1500(1+0.04)^2-1500\\C.I.=1500[1.04^2-1]\\C.I.=1500[1.0816-1]\\C.I.=1500\times 0.0816\\C.I.=122.4$

Therefore, interest earned is £122.4

5 0

3 years ago

Pls help! simple question will give brainliest!

Sphinxa [80]

Answer:

Factor $x^{4}$ −2401

$x^{4}$ −2401

=( $x^{2}$ +49)(x+7)(x−7)

7 0

3 years ago

Read 2 more answers

Find the area of the triangle <br>answer in digital format only

IceJOKER [234]

Answer:

Step-by-step explanation:

Assume that each cell on the grid represents one unit. One can use the formula, ( $A=\frac{(base)(hieght)}{2}$ ) to find the area of the triangle. One can see that the base of the triangle is, (11), and the height is (6). Substitute in the given values and solve for the area,

$A=\frac{(11)*(6)}{2}$

$A=\frac{66}{2}$

$A=33$

3 0

3 years ago

1st question I want to solve

mr_godi [17]

Answer:

34.64

Step-by-step explanation:

take tan value and solve the triangle

7 0

3 years ago