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Serga [27]
3 years ago
12

PLEASE PLEAE PLEASE!!!! HELP ME

Mathematics
1 answer:
taurus [48]3 years ago
8 0

Answer:

My best answer. Hope this helps...

Step-by-step explanation:

You can see 1 full square in the triangle.

There are also 3 half squares.

The top part of the triangle also equals to 1 half square.

On the bottom right side, you have two shapes that add up to a square.

4 half squares = 2 full squares.

2 + 1 + 1 = 4

The square also has 4 squares.

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Given cos A=0.25, find angle A in degrees. Round your answer to the nearest hundredth.
dexar [7]
Cos A will be 60°.
Because When, cos is 1/2 then theta or angle is degree 60°

6 0
3 years ago
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Jan has 10 reports to file. If each report takes an average of 75 minutes. to file, how long will it take to file 70% of them?
lora16 [44]

10 × 75 = 750 minutes to file 100% of the files. (Approximately 12.5 hours)

\frac{70}{100} = 0.7

70% of these files = 750 × 0.7 = 525 minutes.

Converting 525 minutes into hours, Jan would to take 8.75 hours to file 70% of the files.


6 0
2 years ago
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Which of the following sets is NOT dlosed under addition?
sergij07 [2.7K]

Answer:

Odd numbers.

Step-by-step explanation:

Closed under addition means you will able to take any two numbers from whatever set is mentioned and add them to get a number in that same set.

(If I say counting numbers, I'm still talking about the natural numbers.)

So let's look at the natural numbers {1,2,3,4,5,6,...}.

1+1=2

1+2=3

1+3=4

...

6+19=25

Let a and b be counting numbers.

a+b is still going to be a counting number.

You will always get a counting number when adding two counting numbers. So the counting numbers (also known as the natural numbers) is closed under addition.

Let's skip down to odd numbers because the other sets are similar to the first.

Let's add a pair of odd numbers.

3+5=8

8 is not odd so the odd numbers are not closed under addition because we will not always get an odd number. In fact, you will never get a odd number, but the thing is you just need one example to show it is not closed.

(2k+1)+(2a+1)

2(k+a)+2

2(k+a+1) is even so adding two odds will always give you an even.

4 0
3 years ago
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Please help me!!!!!!!!!!!!!!<br> 20 POINTS
Katarina [22]

Answer:

The Area of the Grass is 18 square meters.

Step-by-step explanation:

Find the area of the grass and sand (5*6). The area of the grass and sand is 30.

Next, find the area of just the sand (3*4). The area of the sand is 12.

Subtract the area of the sand (12) from the area of the grass and sand (30).

30-12 = 18

8 0
1 year ago
Rite a problem with two positive addends and one negative addend. Describe how you would solve.
Pie

Answer & Explanation:

When adding integers with the same sign, the sum is equal to the sum of the absolute values of each addend and has the sign common to the addends. Both addends are positive, so the sum is positive. Both addends are negative, so the sum is negative.

3 0
3 years ago
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