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2 years ago

Please help ! thank you

Mathematics

1 answer:

tankabanditka [31]2 years ago

6 0

That would be

$\dfrac{.24}{.54} = .444...$

Answer: B

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AB is tangent to C. I need to find the value of r.

serious [3.7K]

Tangent always meets radius at 90° angle.

Angle ABC = 90° so Pythagoras' theorem applies.

r² + 4² = (r+2)²
r² + 16 = r² + 4r + 4
12 = 4r
r = 3

5 0

2 years ago

You know that 15% of a number n is 12. How can you use this to find 30% of n? 45% of n? Explain.

Keith_Richards [23]

30% is 24
45% is 36
take 15% and multiply it by however much it takes to make the percentage than multiply that by 12

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2 years ago

Please Help....................................

vazorg [7]

The answer are:
(-4,5)

(2,2)

(-1, -3)

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2 years ago

In a prize drawing at a fundraiser, you choose three different numbers from 1 to 8. How many ways are there to choose three numb

Sergeu [11.5K]

For the first number you can choose from 8, for the second number only 7, for the third number only 6. So the number of combinations is 8x7x6=336

8 0

2 years ago

Sam's total expenses last month were $1840. What was his total variable cost for last

likoan [24]

Answer:

$1500

Step-by-step explanation:

It is given that

Rent = $100

Groceries and drinks = $1000

Insurance premiums = $10

Loan interest payment =$30

Clothes = $200

Utilities = $300

Home security fee = $200

Fixed cost are costs that does not vary and variable cost are costs that vary with goods and services.

In the given problem, rent , insurance premiums, loans interest payment ad home security fee are fixed cost.

Groceries and drinks, clothes and utilities are variable cost.

So, total variable cost for last month is

$\text{Total variable cost}=\$1000+\$200+\$300=\$1500$

Therefore, total variable cost for last month is $1500.

5 0

2 years ago