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nalin [4]
3 years ago
15

Find the approximate area of a circle that has a radius of 14 feet. Round your answer to the nearest hundredth.

Mathematics
2 answers:
ololo11 [35]3 years ago
3 0
A=PIEr^2, letting r=14

a=PIE(14)^2

=615.75ft^2

use the symbol pie as the substitution for the actual word

viva [34]3 years ago
3 0

Answer:

615.75

Step-by-step explanation:

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Jenny bought 3 CDs that were each the same price. Including sales tax, she paid a total of $45.30 Of that total, $1.50 was tax.
enot [183]

Answer:

$13.6

Step-by-step explanation:

Jane bought 3 CDs that were each the same price. So let the price of each CD be ‘x’.

It is given that including sales tax, she paid a total of $45.30.

Also each CD had a tax of $1.50. We need to find out what the price of each CD was before tax.

Since the tax for all 3 CDs was same, the total amount of tax that she paid was:

3 * 1.50 = 4.50

Therefore the total tax on 3 CDs is $4.50

Since we already know the total price she paid for the CDs including taxes, we can find the price of each CD by the following way:

3x + 4.50 = 45.30

3x = 45.30 - 4.50

3x = 40.8

x = 13.6

Therefore the price of each CD before tax is $13.6.

5 0
3 years ago
What two numbers multiplies to 36 and add to negative 21
anastassius [24]
Factor 36 and add them, make sure both are negatie
1+36=37, nope
2+18=20 nope
3+12=15,nope
4+9=13, nope
6+6=12, nope

the closest one is 20

I hope you meant adds to -20, because if you did, then answer is -2 and -18

if you did mean 36 and adds to -21, then the numbers are \frac{-21-3 \sqrt{33} }{2} and \frac{-21+3 \sqrt{33} }{2}, aprox -19.1168 and  -1.8831
6 0
3 years ago
What is the answer for this
KonstantinChe [14]

Answer:  y=\frac{1}{30}x+1

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

You need to find slope of the line with the formula:

m=\frac{y_2-y_1}{x_2-x_1}

Pick to  points of the given line. You can choose the point (60,3) and the point (30,2).

Then, substituting into the formula:

 m=\frac{2-3}{30-60}=\frac{1}{30}

You can observe in the graph that the line intercepts the y-axis at the point (0,1), therefore "b" is:

b=1

Substituting the slope and the y-intercept found into  y=mx+b, you get the equation of this line:

 y=\frac{1}{30}x+1

Where "y" represents the Height (1,000 ft) and "x" represents the Time in seconds.

3 0
3 years ago
Tim drives at an average speed of 80 km per hour for 3 hours and 45 minutes. work out how may kilometers Tim drives.
lara31 [8.8K]
Hey there!


Tim drives 300 kilometers.


Work: 80 x 3 = 240
Then, 45 minutes is 3/4 of an hour, so if you were to do 3/4 of 80  it is 60
Now, add 240 + 60 = 300

Hope I was able to help!
6 0
3 years ago
Read 2 more answers
The daily calorie intake for a rider in the Tour de France is 3500 calories. If the race for the day is 4 hours, about how many
stepan [7]

Answer:

875 calories per hour

Step-by-step explanation:

To find out how much calories would be used per hour you have to divide 3500 calories by 4 hours to get 875 calories. Hope this helps :)

4 0
3 years ago
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