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VladimirAG [237]
3 years ago
7

Question 2 (Multiple Choice Worth 1 points)

Mathematics
2 answers:
Alexxx [7]3 years ago
6 0
I think it is d. the last one
kompoz [17]3 years ago
3 0
The last choice. slope is 0.9
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Evaluate 3-8/2 +3x5​
wolverine [178]
<h2>Answer:</h2><h2>3-8/2+3×5</h2><h2>5/2</h2><h2>2.5 + 3×5</h2><h2>2.5+15</h2><h2>= 17.5*</h2>

3 0
3 years ago
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Find the value of k so that 48x-ky=11 and (k+2)x+16y=-19 are perpendicular lines.
Rufina [12.5K]

Answer: k = -1 +/- √769

<u>Step-by-step explanation:</u>

48x - ky = 11

<u>-48x        </u>  <u> -48x</u>

         -ky = -48x + 11

         \frac{-ky}{-k} = \frac{-48x}{-k} + \frac{11}{-k}    

           y =\frac{48x}{k} - \frac{11}{k}

Slope: \frac{48}{k}

*************************************************************************

 (k + 2)x + 16y = -19

<u>- (k + 2)x          </u>   -<u>(k + 2)x </u>

                 16y = -(k + 2)x - 19

                  \frac{16y}{16} = -\frac{(k + 2)x}{16} - \frac{19}{16}

                  y = -\frac{(k + 2)x}{16} - \frac{19}{16}

Slope: -\frac{(k + 2)}{16}

**********************************************************************************

\frac{48}{k} and -\frac{(k + 2)}{16} are perpendicular so they have opposite signs and are reciprocals of each other.  When multiplied by its reciprocal, their product equals -1.

-\frac{(k + 2)}{16} *  \frac{k}{48} = -1

\frac{(k + 2)k}{16(48)} = 1

Cross multiply, then solve for the variable.

(k + 2)(k) = 16(48)

k² + 2k - 768 = 0

Use quadratic formula to solve:

k = -1 +/- √769



5 0
3 years ago
The sum of the angle measures of a triangle is 180°. Find the measure of each angle
Mice21 [21]

Answer:

16 and 82 degrees

Step-by-step explanation:

You can sum all of the angles together and solve for x.

(x - 1) + (5x - 3) + (5x - 3) = 180

11x - 7 = 180

11x = 187

x = 17

The first angle is 16 degrees. (17 - 1)

The other two angles are 82 degrees(5(17) - 3)

8 0
3 years ago
Find the slope of the line shown on the graph to the right.Select the correct choice below and fill in any answer boxes within y
klasskru [66]

We can see that the line is horizontal so its slope is 0.

5 0
9 months ago
Lb = 64 oz Helppppppppppppp me<br><img src="https://tex.z-dn.net/?f=5" id="TexFormula1" title="5" alt="5" align="absmiddle" clas
chubhunter [2.5K]

Answer:

no u

Step-by-step explanation: no no no no no no no no no

7 0
2 years ago
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