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DiKsa [7]
3 years ago
5

Find the area of a circle with radius, r = 40cm. Give your answer rounded to 3 SF

Mathematics
1 answer:
Serjik [45]3 years ago
6 0
Area of circle = pi x r^2
= 22/7 x 40^2
= 5028.57
= 5030cm^2 (3 SF)
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Kamran wins the big game lottery. He invests part of his winnings in treasury bonds promising a 5% annual return and he deposits
Ostrovityanka [42]

Answer:

Amount won by Kamran = $21,450

Step-by-step explanation:

This can be calculated using the following 3 steps:

Step 1: Calculation of the amount invested in treasury bonds

Since the limit to the duration of investment is not stated, the amount invested can be calculated using the formula for calculating the present value of a perpetuity as follows:

PV = P / r …………………………………. (1)

Where;

PV = Present value or the amount invested treasury bonds = ?

P = Annual return on his investments = $661.25

r = Annual rate of return = 5%, or 0.05

Substitute the values into equation (1), we have:

PV = $661.25 / 0.05 = $13,225

Step 2: Calculation of the amount deposited in the money market account

From Step 1 above, we have:

Amount invested treasury bonds = $13,225

Since he invests $5000 more in treasury bonds than he deposits in the money market account, the amount deposited in the money market account can be calculated as follows:

Amount deposited in the money market account = Amount invested treasury bonds - $5,000 = $13,225 - $5,000 = $8,225

Step 3: Calculation of the amount won by Kamran

Amount won by Kamran = Amount invested treasury bonds + Amount deposited in the money market account = $13,225 + $8,225 = $21,450

7 0
3 years ago
6. Blake went to the grocery store at 6:30PM. He returned to his house around 9:14PM after running
babunello [35]

Answer:

The answer is 2:44 minutes. I had this question and got it right. You have to subtract 9:14 - 6:30 = 2:44. Have a great day.

Step-by-step explanation:

4 0
3 years ago
Which expression is equivalent to 11c-4c? A. 5c+2c B. 3c+7c
timurjin [86]
11c-4c = 7c
5c+2c= 7c
3c+7c= 10c

11c-4c= 5c+2c =A
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3 years ago
PLEASE HELP WILL GIVE A BRAINLIEST!!
Tanya [424]
The answer is a. number of boys < 89.
7 0
3 years ago
Read 2 more answers
4x=17 math answer question
kumpel [21]

Answer:

x=4.25

Step-by-step explanation:

4x=17

4x/4=17/4

x=17/4

or

x=4.25

Hope this helps .-.

7 0
3 years ago
Read 2 more answers
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