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Drupady [299]
2 years ago
7

Can yall tell me what im doing wrong? for 50 points.

Mathematics
2 answers:
leva [86]2 years ago
7 0

#1

  • (3,19)
  • (-1,-13)

Slope

  • m=-13-19/-1-3=-32/-4=8
  • D

#2

  • (0,1)
  • (-1,-1)

Slope:-

  • m=-1-1/-1=2
  • F

#3

  • (1,-8)
  • (2,-16)

Slope

  • m=-16+8/2-1=-8
  • B

#4

  • (9,-10)
  • (0,8)

Slope:-

  • m=8+10/0-9
  • m=18/-9
  • m=-2
  • G

Code is

  • DFBG
Aloiza [94]2 years ago
4 0

Crackdown result: <u>DFBG</u>

\sf slope \ (m): \dfrac{y_2-y_1}{x_2-x_1}

1)

\rightarrow \sf m = \dfrac{-13-19}{-1-3}

<u>simplify</u>

\rightarrow \sf m=8

2) take two points: (-1,-1), (0, 1)

\rightarrow \sf m = \dfrac{1-(-1)}{0-(-1)}

<u>simplify</u>

\rightarrow \sf m = 2

3) take two points: (1, -8), (2, -16)

\rightarrow \sf m = \dfrac{-16-(-8)}{2-1}

<u>simplify</u>

\rightarrow \sf m = -8

4)

\rightarrow \sf m = \dfrac{8-(-10)}{0-9}

<u>simplify</u>

\rightarrow \sf m = -2

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A system of equations and its solution are given below.
ratelena [41]

Answer:

B

Step-by-step explanation:

The second equation in system B is only in terms of y, so we need to use elimination to eliminate the x term from the second equation in system A.

To do that, we need to multiply the first equation by 5.

5 (-x − 2y = 7)

-5x − 10y = 35

Add to the second equation.  Notice the x terms cancel out.

(-5x − 10y) + (5x − 6y) = 35 + (-3)

-16y = 32

Combining this new equation with the first equation from system A will get us system B.

-x − 2y = 7

-16y = 32

4 0
3 years ago
For the composite function, identify an inside function and an outside function and write the derivative with respect to x of th
alexira [117]

Answer:

The inner function is h(x)=4x^2 + 8 and the outer function is g(x)=3x^5.

The derivative of the function is \frac{d}{dx}\left(3\left(4x^2+8\right)^5\right)=120x\left(4x^2+8\right)^4.

Step-by-step explanation:

A composite function can be written as g(h(x)), where h and g are basic functions.

For the function f(x)=3(4x^2+8)^5.

The inner function is the part we evaluate first. Frequently, we can identify the correct expression because it will appear within a grouping symbol one or more times in our composed function.

Here, we have 4x^2+8 inside parentheses. So h(x)=4x^2 + 8 is the inner function and the outer function is g(x)=3x^5.

The chain rule says:

\frac{d}{dx}[f(g(x))]=f'(g(x))g'(x)

It tells us how to differentiate composite functions.

The function f(x)=3(4x^2+8)^5 is the composition, g(h(x)), of

     outside function: g(x)=3x^5

     inside function: h(x)=4x^2 + 8

The derivative of this is computed as

\frac{d}{dx}\left(3\left(4x^2+8\right)^5\right)=3\frac{d}{dx}\left(\left(4x^2+8\right)^5\right)\\\\\mathrm{Apply\:the\:chain\:rule}:\quad \frac{df\left(u\right)}{dx}=\frac{df}{du}\cdot \frac{du}{dx}\\f=u^5,\:\:u=\left(4x^2+8\right)\\\\3\frac{d}{du}\left(u^5\right)\frac{d}{dx}\left(4x^2+8\right)\\\\3\cdot \:5\left(4x^2+8\right)^4\cdot \:8x\\\\120x\left(4x^2+8\right)^4

The derivative of the function is \frac{d}{dx}\left(3\left(4x^2+8\right)^5\right)=120x\left(4x^2+8\right)^4.

3 0
4 years ago
A gardener is planting two types of trees:
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9 + 13x = 6 + 19x since x is same variable (year)
9 - 6x = 6
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3 0
4 years ago
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4 0
3 years ago
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siniylev [52]
By connecting the distances traveled by the jet and the distance between them, we form a right triangle with hypotenuse equal to the unknown distance. 
Using the Pythagorean,
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Substituting,
                             h² = (108 mi)² + (214 mi)²
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Thus, the distance between them is approximately 239.71 miles. 
7 0
4 years ago
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