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zlopas [31]
3 years ago
10

Let me knwo the answer! Will mark brainliest! eAsy 8th grade algebra!

Mathematics
2 answers:
aliya0001 [1]3 years ago
8 0

Answer:

the answer is D

Step-by-step explanation:

i 1000000% surebthatś the answer:)    don forget to brainllest:)

Fofino [41]3 years ago
8 0
It’s d please mark me brainliest
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Four congruent isosceles right triangles are cut from the 4 corners of a square with a side of 20 units. The length of one leg o
yanalaym [24]

Answer:

368 sq. units.

Step-by-step explanation:

We have a square of side lengths 20 units and we cut four congruent isosceles right triangles from the corners of the square.

Now, the four isosceles right triangles have one leg equal to 4 units.  

Therefore, the area of four triangles = 4 \times ( \frac{1}{2} \times 4 \times 4) = 32 sq. units.

Now, we have the area of the given square is (20 × 20) = 400 sq. units.

Therefore, the area of the remaining octagon will be (400 - 32) = 368 sq. units. (Answer)

7 0
4 years ago
the area of a square poster is 27 in.2. Find the length of one side of the poster to the nearest tenth of an inc
gayaneshka [121]

Answer:

5.2 inches

Step-by-step explanation:

Let a be the side of the square poster.

The area of it is:

● A = a^2

● 27 = a^2

● a = √27

● a = √(9×3)

● a = 3√3

● a = 5.19

Round it to the nearest tenth

● a = 5.2 inches

5 0
4 years ago
I need these answers now please !! ​
Troyanec [42]
Wish I could help maybe this will boost the post
4 0
3 years ago
Assume that the Richter scale magnitudes of earthquakes are normally distributed with a mean of 1.064 and a standard deviation o
sertanlavr [38]

Answer:

Ok.

Step by Step Explanation: Ok.  

5 0
3 years ago
Auto insurance Insurance companies collect annual pay-ments from drivers in exchange for paying for the cost of accidents.a) Why
Igoryamba

Answer:

Step-by-step explanation:

a) Because you are only receiving $1500 and in exchange you would have to cover for this accident damage in the next year, which could be up to hundred of thousands of dollar. Sure there's a chance the your neighbor might drive safely, but the odds are far more in his favor than yours.

b) The insurance company collect payments from hundred of thousands buyers, making their cash flow up to tens of million dollar. Sure the expected value of accidents might be high but as a company they surely have capital to cover a handful of cases, if their calculation done right.

8 0
4 years ago
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