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Anika [276]
3 years ago
5

Find the area of a circle with a Radius = 4 ft. Use 3.14 for and round to 2 decimal places.

Mathematics
2 answers:
Svetach [21]3 years ago
8 0
A= Pi * r2^
A= 3.14 * 4^2
A= 3.14 * 16
A= 50.26
bagirrra123 [75]3 years ago
6 0

Answer:

50.24 ft^2

Step-by-step explanation:

Well formula for area of a circle is pi(radius)^2

so the radius is 4 so you square that it’ll be 16

then do 16(3.14)

you’ll get 50.24

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EXTRA POINTS!
antiseptic1488 [7]

Answer:

y = 15

Step-by-step explanation:

angle poq + angle qor equals mpor (120)

4y + 3y + 15= 120

7y+15=120

subtract 15 from both sides

7y=150

divide both sides by 7

y=15

check:

4(15) + 3(15) + 15 equals 120

60 + 45 + 15 = 120

120 = 120

7 0
3 years ago
In his first year, a math teacher earned $32,000. Each successive year, he
Ivan

Answer:

Step-by-step explanation:

Each successive year, he

earned a 5% raise. It means that the salary is increasing in geometric progression. The formula for determining the nth term of a geometric progression is expressed as

Tn = ar^(n - 1)

Where

a represents the first term of the sequence(amount earned in the first year).

r represents the common ratio.

n represents the number of terms(years).

From the information given,

a = $32,000

r = 1 + 5/100 = 1.05

n = 20 years

The amount earned in his 20th year, T20 is

T20 = 32000 × 1.05^(20 - 1)

T20 = 32000 × 1.05^(19)

T20 = $80862.4

To determine the his total

earnings over the 20-year period, we would apply the formula for determining the sum of n terms, Sn of a geometric sequence which is expressed as

Sn = (ar^n - 1)/(r - 1)

Therefore, the sum of the first 20 terms, S20 is

S20 = (32000 × 1.05^(20) - 1)/1.05 - 1

S20 = (32000 × 1.653)/0.05

S20 = $1057920

3 0
3 years ago
What is the graph of y = x - 3 (shown below) translated up 2 units?
Mrac [35]
I don't see a "shown below," so I'm not sure if I could accurately answer your question. However, if your graph point is (x,-3), then it wants you to move your graphed point up two units. I believe that would be y = x -1? I'm not sure
7 0
4 years ago
Read 2 more answers
Complete the equation of the line through (2,1)and (5,-8)
Alex73 [517]

m =  \frac{ - 8 - 1}{5 - 2}  \\   = \frac { - 9}{3}  \\  m  =  - 3 \\ y = mx + c \\ 1 =  - 3(2) + c \\ c = 7 \\ y = mx + c \\ y =  - 3x + 7
4 0
3 years ago
NEED HELP! Given statements:
Nana76 [90]

Answer:

B

Step-by-step explanation:

Its says an obtuse angel is not acute and B is abtuse which means  B is not a cute hope this helps :)

8 0
3 years ago
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