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2 years ago

I'll give 100 points to who gives the best answer.

Mathematics

1 answer:

nataly862011 [7]2 years ago

4 0

Total shaded area is 41 square feet.

Split the shaded area into 3 shapes, calculate the area of each shape then add them together.

See attached picture.

Area of non shaded region:

8x 16 = 128 square feet - 41 = 87 square feet.

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<img src="https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7Ba%5E2%20-2a-b%5E2%3D0%7D%20%5Catop%20%7B2b%2B2ab%3D0%7D%7D%20%5Cright

oksian1 [2.3K]

Given :-

a² - 2a - b² = 0
2b + 2ab = 0

To find :-

Value of a and b .

Solution :-

Taking second equation:-

2b + 2ab = 0
2b ( 1 + a ) = 0
2b = 0 or (1+a) = 0
b = 0 , a = -1

Substitute in first equation :-

a² - 2a - b² = 0

When b = 0 ,

a² - 2a - 0² = 0
a² - a = 0
a( a -1) =0
a = 0 , 1

When a = -1 ,

(-1)² - 2*(-1) - b² = 0
1 + 2 - b² = 0
b² = 3
b = ±√3

Answer :-

a = 0,1 ; b = 0
a = -1 , b = ±√3

8 0

2 years ago

Please answer this correctly without making mistakes

Makovka662 [10]

12%

The fraction is 12/100, which is the same as 12%

Hope this helps!

3 0

3 years ago

Shannon saves 1235 in november. In november, she saved $250 less than she did in december. How much money did she save in the tw

madam [21]

In December she would have saved $1585 because 1235 + 250 = 1485. You can find how much money she raised in those 2 months by adding the totals of both months together, so 1485 + 1235 = 2720. She saved $2720 in the 2 months.

4 0

3 years ago

Help needed quickly

Rudiy27

Answer: your picture isn't popping up on my screen so when it pops up ill be more than welcomed to help .

Step-by-step explanation:

6 0

3 years ago

Is this answer correct? Thank you

elena-14-01-66 [18.8K]

Your answer is technically correct, but you need to simplify it. Both 12 and 36 can be divided by 12. After doing that you get:
1:3
Also, you need to make sure the order is correct, 1:3 also fixes the order.

3 0

3 years ago

Read 2 more answers