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ICE Princess25 [194]
4 years ago
11

What is the area of this circle?

Mathematics
2 answers:
kykrilka [37]4 years ago
6 0

Answer:

It should be 1,256.6 in square inches

Step-by-step explanation:

Degger [83]4 years ago
5 0

Answer:

100 pi (314.16)

Step-by-step explanation:

Because the diameter is 20 in, that makes the radius = 20/2 inches = 10 inches.

10^2 * pi = area

100 pi =  area

314.16 is approx. area.

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Solve the system.
patriot [66]

Answer:

D.(2,-1,-1)

Step-by-step explanation:

-a+4b+2c=-8

3a+b-4c=9

b = -1

Substitute b=-1 into the other equations

-a -4 +2c = -8

3a -1 -4c =9

Multiply the first equation by 2 so we can eliminate c

-2a -8 +4c = -16

Add this to the second equation

-2a -8 +4c = -16

3a -1 -4c =9

-----------------

a -9 = -7

Add 9 to each side

a-9+9 = -7+9

a =2

b=-1

Now we need to find c

-a +4b +2c = -8

-2 -4 +2c = -8

-6+2c = -8

Add 6 to each side

-6+6 +2c = -8+6

2c = -2

Divide by 2

2c/2 = -2/2

c=-1

(2,-1,-1)

5 0
4 years ago
Mary can make a quilt in 3 days and Eva can make
Rina8888 [55]

Answer: in explanation

Step-by-step explanation

Sandi can perform  1/9 of the task in a day

Eva can perform 1/5 of the task in a day

Working together, they can perform

                                                            1/9 + 1/5 of the task per day

                                                            = 5/45 + 9/45 = 14/45 of the task in a day

or                                                             45/14 days in the task = 3.2 days

So

          It would take about 3.2 days to complete the task working togethe

7 0
3 years ago
6 · (−1)<br> Enter an expression
cestrela7 [59]

Answer: -6

Step-by-step explanation:

6 * -1 = -6

8 0
2 years ago
What is 6 10th in simplest form
Katarina [22]

Answer:

3/5ths

Yw :)

8 0
3 years ago
Read 2 more answers
Pencils cost $0.30 each and pads of paper cost $1.25 each. You have $3.30 to spend and you need 6 pencils. How many pads of pape
natta225 [31]

Answer:

6 x 0,30 = $1,80

$3,30 - $1,80 = $1,50

$1,50 - $1,25 = $0,25 (not enough money)

you can buy 1 pad of paper

<em>hope it helps.</em>

Also, I think that Brainly is an awesome app, but there's an app which is doing great work for me in maths, named Gauthmath. I will suggest it. Video concepts and answers from real tutors.

3 0
3 years ago
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