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Juli2301 [7.4K]
3 years ago
13

Find the circumference and the area of a circle with radius 5 ft Use the value 3.14 for pi and do not round your answers. Be sur

e to include the correct units in your answers.
Mathematics
2 answers:
Black_prince [1.1K]3 years ago
8 0

Answer:

circumference: 31.41593 ft

Area: 78.53982 ft

Step-by-step explanation:

Andrew [12]3 years ago
6 0

Answer:

Circumference: 31.4 ft

Area: 78.5

Step-by-step explanation:

To do the circumference of a circle, you have to do 2\pir, let's do 2x\pi=6.28. Now we will do 6.28x5= 31.4, So 31.4 ft is the answer.

To do the area of a circle you have to do \pir² so \pix r². First we will do the radius first, 5x5=25, so we will do 3.14x25=78.5. So 78.5ft is the answer!

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Write the equation of the line that passes through 7, 0 and is parallel to y = -3x + 4​
Mazyrski [523]

Answer:

y = - 3x + 21

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 3x + 4 ← is in slope- intercept form

with slope m = - 3

Parallel lines have equal slopes , then

y = - 3x + c ← is the partial equation

To find c substitute (7, 0 ) into the partial equation

0 = - 21 + c ⇒ c = 0 + 21 = 21

y = - 3x + 21 ← equation of parallel line

8 0
3 years ago
Chan deposited money into his retirement account that is compounded annually at an interest rate of 7%. Chan thought the equival
dedylja [7]

Answer:

No, equivalent quarterly rate will be approx 1.75%

Step-by-step explanation:

Given that Chan deposited money into his retirement account that is compounded annually at an interest rate of 7%.

We know that there are 4 quarters in 1 year.

So to find that equivalent quarterly we will divide given yearly rate by number of quarters.

That means divide 7% by 4.

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But that is different than Chan's though of 2% quarterly interest.

Hence Chan is wrong.

4 0
3 years ago
Solve for n. 24 = 3(n -5)​
Masteriza [31]

Answer:

n=13

Step-by-step explanation:

24=3(n-5)

24=3n-15

-3n=-24-15

-3n=-39

n=13

8 0
3 years ago
What tose by mean in mathematics?
Bumek [7]
The misused form but it is really the mean the arithmetical form of mean
6 0
3 years ago
Read 2 more answers
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kozerog [31]
$30.75 x 12 = 369
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7 0
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