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Veronika [31]
3 years ago
7

The sector of a circle with a 12-inch radius has a central angle measure of 60°. What is the exact area of the sector in terms o

f ​ π ​?
Mathematics
1 answer:
goldfiish [28.3K]3 years ago
3 0
75.3982237 inches squared is the answer, round it to whatever decimal place your asked to.
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1/5(2x-10)+4x=-3(1/5x+4)
borishaifa [10]
First solve to your equation by step by step.

1/5(2x-10)+4x=-3(1/5x+4)
= x=-2

Answer is x=-2

It will help you.
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5 pounds 35 dollars how much for one pound
Tju [1.3M]

Divide total dollars by total pounds:

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2 years ago
Alright Soldier I need help, Solve for Percent Error, Calculate the percent error if the experimental value of the density of go
Dima020 [189]

Answer:

Step-by-step explanation:

so the steps to doing this are as follows :

Subtract the accepted value from the experimental value.

Take the absolute value of step 1.

Divide that answer by the accepted value.

Multiply that answer by 100 and add the % symbol to express the answer as a percentage.

|18.7-19.3|/19.3 = 0.031088 * 100% = 3.1%

7 0
3 years ago
When sales of a particular hybrid automobile reach 60,000 units, federal income tax credits begin to phase out. One year after r
SCORPION-xisa [38]

Answer:

$750

Step-by-step explanation:

so, in short, we need to calculate 25% of $3000.

that is the amount of tax credit a buyer would get then.

direct and fast answer :

25% means 1/4 of the overall amount.

$3000 / 4 = $750

now, a little bit longer to explain % calculations in general.

let's say, we are talking 27%. now we have a problem to find a fast fraction as factor.

it always starts with the identification of 100%.

what is the full starting amount we are dealing with ? that is the 100%.

in our case $3000.

now, as a base for the calculation we determine 1%, which is 1/100 of 100%, of course.

1% = $3000 / 100 = $30

to get said 27% we have to multiply this by 27

27% = 1% × 27 = $30 × 27 = $810

or in general

x% = 100% × x / 100

that also works for more complex questions. e.g. calculate 1.5%

1.5% = $3000 × 1.5 / 100 = $30 × 1.5 = $45

and that is all there is to % calculations. all the questions are just some variations, where your are missing one of the 3 "ingredients" : 100% amount, x% amount and x itself.

and you need to transform the general equation above to get the missing piece of of the given information.

3 0
2 years ago
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