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2 years ago

Please help so i can play my electronics

Mathematics

1 answer:

Maslowich2 years ago

8 0

Answer:

All questions are answered in the photo, the answers are correct, but you might have a different method

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Find the circumference of the circle in terms of π.

SSSSS [86.1K]

Answer:

C) 12π cm

Step-by-step explanation:

<u>Circumference formula:</u>

C = 2πr

Given r = 6 cm

<u>Circumference is:</u>

C = 2π*6 cm = 12π cm

Correct choice is C

4 0

2 years ago

Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0

3 years ago

3x+3y=180 what is the answer to this problem

Hatshy [7]

Answer:

If you are solving the equation for x :

3x + 3y = 180

3x = -3y + 180

x = -y + 60 or x = 60 - y

If you are solving the equation for y:

3x + 3y = 180

3y = -3x + 180

y = -x + 60 or y = 60 - x

3 0

3 years ago

Which decimal is equivalent to 25/6

nataly862011 [7]

Answer: C

Step-by-step explanation: This is actually very simple, all you have to do is type in a calculator 25 divided by 6. After that you will be given 4.1666666 repeating. So your answer is 4.16 with a repeating 6. Hope this helps!

7 0

3 years ago

IS 419.10 GREATER THAN 419.099

marysya [2.9K]

Yes, by 0.001. Thank me later.

8 0

3 years ago

Read 2 more answers