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Veseljchak [2.6K]
3 years ago
13

I’ll give brainiest!

Mathematics
1 answer:
Stells [14]3 years ago
7 0

Answer:

BD  \approx 2.6

Step-by-step explanation:

By angle bisector theorem:

\frac{3.4}{BD}  =  \frac{6.5}{4.9}  \\  \\ BD =  \frac{3.4 \times 4.9}{6.5}  \\  \\ BD =  \frac{16.66}{6.5}  \\  \\ BD = 2.56307692 \\  \\ BD  \approx 2.6

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What is true about the sum of the two polynomials?
const2013 [10]

Answer:

f'(x) = -f(x) = 9xy² - 6x²y + 5x³

Step-by-step explanation:

f(x) = –9xy² + 6x²y – 5x³

additive inverse: f'(x) = -f(x) = 9xy² - 6x²y + 5x³

f(x) + f'(x) = f(x) -f(x) = (–9xy² + 6x²y – 5x³) + (9xy² - 6x²y + 5x³) = 0

8 0
3 years ago
Can someone help me on this
Cerrena [4.2K]

Answer:

2x+h

Step-by-step explanation:

f(x+h) means that wherever there's an x in the function f(x) we plug in a x+h

we have

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Let's start with the numerator

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Distribute the exponent

x²+2xh+h²+9-x²-9

Which gives us

2xh+h²

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2x+h

4 0
3 years ago
I’m not sure why the picture didn’t work
lutik1710 [3]

Answer:

4.1

Step-by-step explanation:

6 0
2 years ago
HELP HELP HELP ME YOU'LL GET 50+ BRAINLIEST POINTS PLEASE HELP ME PLEASE PLEASE ANSWER CORRECTLY PLEASE
yaroslaw [1]
The answer is 9.5 ( rounded, answer is 9.486833)
3 0
2 years ago
Simplify the polynomial(-8×)+×+(-2×)​
Morgarella [4.7K]

Answer:

-9x

Step-by-step explanation:

Without the confusing parentheses, this "polynomial" becomes -8x + x -2x. If we take 2 away from -8, it becomes -10. If we add a positive x, it becomes -9x. Therefore, the answer is (the monomial) -9x.

8 0
3 years ago
Read 2 more answers
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