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Virty [35]
2 years ago
8

I didn’t learn to do this please help

Mathematics
1 answer:
Naddika [18.5K]2 years ago
4 0
Find the area of the blue square including the white square then find the area of the white square and subtract that from the area of the blue square.

Hope that helps if you need more help just comment and I’ll try to explain it better!
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Help please. i have no idea how to do this.
Grace [21]

Answer:

ill help u lol im pretty positive its 8

5 0
2 years ago
Find the area of each figure, round to the nearest tenth if necessary.USE 3.14 for pi
Nina [5.8K]

Answer:

11 is 405, 12 is 107.5, 13 im not sure of

Step-by-step explanation:

First on 11 you can just do 21*21 (the big square) and subtract that by 36 (which is 6*6, the small square), you'll get 107.5.

Then on 12, it is made up of a large rectangle, a small triangle, and a flatter triangle. The top triangle's formula is 1/2(7*3) which = 10.5. The big rectangle is 13*7 = 91. The last triangle is 1/2(4*3) which = 6. It is 3 because 13-10. Add all those up and you should get 107.5.

And I just want to know on number 13 if that 11 is the radius or diameter. I can't seem to tell.

7 0
2 years ago
Read 2 more answers
1. It takes 45 minutes for two people to clean six identical rooms. How
Elena L [17]

Answer:

To clean 20 identical rooms 5 people will take 1 hour .

Hope It Helps You.

8 0
2 years ago
Read 2 more answers
I really need help on this problem!!!ASAP!!!
lord [1]
I feel like it would be 1/12 of a chance
6 0
3 years ago
Solve the equation.<br> x² + 6x+15=0
lara [203]

Answer:

x = -3 + i√6 and x = -3 - i√6

Step-by-step explanation:

Let's apply the "completing the square" method to find the roots of this equation.

Take half of the coefficient 6 of x, square it and add this result to x^2 + 6x.  Then subtract the same quantity:

x^2 + 6x + 15 becomes

x^2 + 6x + 3^2 - 3^2 + 15 = 0

Rewriting the first three terms as the square of a binomial, we ge:

(x + 3)^2 - 9 + 15 = 0, which simplifies to:

(x + 3)^2 + 6 = 0, or (x + 3)^2 = -6

Taking the square root of both sides:

x + 3 = ±i√6

Then the two roots are complex:

x = -3 + i√6 and x = -3 - i√6

3 0
3 years ago
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