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3 years ago

1a.Given: B is the midpoint of AC. B If AC = 17, find BC.

Mathematics

2 answers:

Fudgin [204]3 years ago

8 0

Answer: BC = 8.5

Step-by-step explanation:

Since B is the midpoint (or middle), then AB and BC are equal to each other.

Simply divide AC by 2 to find BC

AC = 17

17/2 = 8.5

Therefore, BC = 8.5

yarga [219]3 years ago

8 0

Answer bc 8 5

Step-by-step explanation:

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E^3x.cos4x.sin2x hii please solv this you have to differentiate

finlep [7]

Answer:

$y = e^{3x}.cos4x.sin2x$

$=> y' =- 3e^{3x}.4sin4x.2cos2x=-24.e^{3x}.sin4x.cos2x$

$dy=y'.dx => dy = -24e^{3x}.sin4x.cos2x.dx$

Step-by-step explanation:

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2 years ago

How many different 11-letter arrangements can be made using the letters in the word Firecracker?

zhenek [66]

Answer:

Total number of arrangements = 1,663,200

Step-by-step explanation:

Given:

11 - letter

FIRECRACKER

F = 1

I = 1

R = 3

E = 2

C = 2

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Computation:

Note: Repeated letter will be avoid.

$Number\ of\ arrangements = \frac{!11}{!3 \times !2 \times !2}\\\\Number\ of\ arrangements = \frac{!11}{!3 \times !2 \times !2} \\\\Number\ of\ arrangements = \frac{11 \times 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3}{3 \times 2 \times 2 } \\\\Number\ of\ arrangements = 1,663,200$

Total number of arrangements = 1,663,200

6 0

4 years ago

Help meee pleaseeeee

Wittaler [7]

Answer:

1 x 10^21

Step-by-step explanation:

The initial number (2 x 10^4) is in scientific notation. Scientific notation must be written as: a X 10^n, where 0<a<10 and n is an integer. In this case, the number in scientific notation is being raised to the power of 5. When we raise a power by another power, we must multiply the power of all the terms by the additional power. In this case, we would get 2^5 x 10^20, this would be 10 x 10^20. Since the value of 'a' needs to be greater than 0 and less than 10, we need to move the decimal to the left and add another power to our 10: 1 x 10^21.

7 0

3 years ago

Please help me asap!!! ):

pogonyaev

9514 1404 393

Answer:

see attached

Step-by-step explanation:

It is helpful to understand that the product of the binomial factors is ...

(ax +b)(cx +d) = ac·x² +(ad+bc)x +bd

For these problems you only need to look at the constant and the leading coefficient to find the missing values.

1. d = 8/-4 = -2

2. b = -24/(3·2·d) = -4; c = 3/(3·a) = 1

3. a = 2/c = 1; d = -24/b = 6

3 0

3 years ago

Translate each sentence into an equation.

mihalych1998 [28]

Answer:

1. 1/2x = 4

2. x - 6 = 9

3. 2x = 5x + 12

4. 2x + 5 = x - 5

5. 2x + 11 = x - 5

Hope this helps you!

3 0

3 years ago