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Archy [21]
3 years ago
10

The radius of the circle is 7 cm. What is the area of the circle in cm2? Leave answer in terms of pi

Mathematics
1 answer:
mash [69]3 years ago
7 0

Answer:

49Pi cm^2

Step-by-step explanation:

Area of a circle = Pi r^2

Radius r = 7

Area = Pi x 7^2

= Pi x 7 x 7

= 49Pi cm^2

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Having a set amount withheld from your paycheck is a convenient way to achieve systematic savings. A. True B. False
jonny [76]

Answer:TRUE

Step-by-step explanation: Systematic saving is the process of setting a specific amount of your income at regular intervals. This intervals can be daily,weekly, monthly etc.

Systematic saving requires certain level of discipline to enhance its sustenance and effectiveness, systematic savings approach can be applied by individuals, organisations and Government to prepare for the future or to execute certain tasks or projects.

6 0
3 years ago
Suppose a bank charges a base rate of $5 plus $0.10 per check for your checking account. You can switch to a different account t
wolverine [178]

Answer:

10 number of checks.

Cost = $6

Step-by-step explanation:

Given that:

Fixed Charges of first bank = $5

Charges of first bank per check = $0.10

Fixed Charges of second bank = $4

Charges of second bank per check = $0.20

To find:

Number of checks such that the charges for the banks become the same?

Solution:

Let the number of checks = x

Cost for the first bank for x checks = $5 + $0.10x

Cost for the second bank for x checks = $4 + $0.20x

As per question statement, both the costs are the same.

Comparing the values:

5 + 0.10x = 4 + 0.20x\\\Rightarrow 0.10x = 1\\\Rightarrow x = 10

So, for 10 number of checks the cost will be same.

The cost = 4 + 0.20 \times 10 = <em>$6</em>

8 0
3 years ago
Find the unknown number 5/12+()=1/2
xenn [34]

Hello from MrBillDoesMath!

Answer:    1/12


Discussion:

We solve  5/12 + x = 1/2 for x. Begin by subtracting 5/12 from each side

5/12 - 5/12 + x  =    1/2 - 5/12

0                  +x =    6/12 - 5/12      (as 1/2 = 6/12)

So x = 1/12

Regards, MrB

8 0
3 years ago
At a manufacturing company for medical supplies, machines produce parts used in highly specialized lasers. Company researchers a
vodomira [7]

Answer:

A) Increase the significance level to increase the probability of a Type I error

Step-by-step explanation:

According to the information of the problem we can say that the researchers have the difficulty with a test that is evaluating a machine, which works well but the test does not get to verify this information correctly, we have that the null hypothesis is that the new machine does not improve precision, so the risk of the researchers is to accept the hypothesis when it is false, what is called type II error, to avoid this, the level of significance should be increased, which in turn would increase the probability of type I error. , so the correct answer is A.

4 0
3 years ago
How do I find the area?
maksim [4K]
Area of square = 5 x 5 = 25
area of trapezoid = 1/2(2+5)(4) = 28/2 = 14
area of figure = 25 + 14 = 39

answer
39 in^2
5 0
3 years ago
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