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Vlada [557]
3 years ago
7

Please help with math work!!

Mathematics
1 answer:
Lina20 [59]3 years ago
3 0
10. 11.4 km squared for area and 11.41 km
11. 422 in. Squared for area and circumference is 72
12. 208 inches squared
13. 448 squared
Hope this is right
Sorry if wrong
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13. Simplify –3√ 2 + 3√ 8 A. 0 B. 3√ 2 C. 9√ 2 D. –3√ 2
valina [46]

Answer:

B. 3√2.

Step-by-step explanation:

  1. -3√2 + 3√4x2
  2. -3√2 + 6√2
  3. 3√2

These are all of the steps to completely, find the correct answer to your question.

Hope this helps!!!

Kyle.

7 0
3 years ago
I need help on this question <br> Factor by grouping.<br> 2u^3+3u^2+14u+21
Andru [333]
U^2(2u+3)+7(2u+3)

(u^2+7)(2u+3)
6 0
3 years ago
If the tangent line to y = f(x) at (7, 4) passes through the point (0, 3), find f(7) and f '(7).
jarptica [38.1K]
Hello : 
f'(7) = the slope of the tangent line : let  A(7,4)    B(0,3)<span>
<span>the slope is :   (YB - YA)/(XB -XA)= (3-4)/(0-7) = -1/-7 = 1/7=f'(7)
the equation of the tangent line is :
y-3 = 1/7 (x-0)
 y = (1/7)x+3
the line tangent and the graph of : f </span></span><span>passes through the point A(7, 4)
x= 7 y=4 so : f(7) =4</span>
4 0
3 years ago
Select the correct answer from each drop-down menu.
dem82 [27]
I believe 1 is 3.8, b/c 1.9*2 is 3.8, and the difference between exponents makes 3 zeros, so 2000.
The second one is 40, I confirmed this by doing .0001 to replicate 10 to the negative 4th power
By doing 9.5*.0001*40, I got the 0.038 from 1
6 0
3 years ago
Read 2 more answers
Help me please!! will mark brainliest!
WITCHER [35]
10 hours seems like the most reliable answer because it matches up the best
8 0
3 years ago
Read 2 more answers
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