3 years ago

Please solve the question on the file.

Mathematics

1 answer:

lana66690 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

they arent similar because the ratio of 8 to 14 and 10 to 18 arent the same.

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Line E passes through the points (2, 3) and (4, -3). What is the slope of a line perpendicular to line E?

lilavasa [31]

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~ 2 &,& 3~) 
% (c,d)
&&(~ 4 &,& -3~)
\end{array}
\\\\\\
% slope = m
slope = m\implies 
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-3-3}{4-2}\implies \cfrac{-6}{2}\implies \cfrac{-3}{1}$

now, a line perpendicular to that one, will have a "negative reciprocal" slope, thus

$\bf \textit{perpendicular, negative-reciprocal slope for}\quad \cfrac{-3}{1}\\\\
negative\implies +\cfrac{3}{ 1}\qquad reciprocal\implies +\cfrac{ 1}{3}\implies \cfrac{1}{3}$

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3 years ago

Angle M and angle R are supplementary.

Burka [1]

Answer:

R = 150°

Step-by-step explanation:

M = x 

R = x*5 = 5x 

$5x + x = {180}^{o} \\ 6x = {180}^{o} \\ x = \frac{ {180}^{o} }{6} \\ x = {30}^{o}$

$5x \\ 5(30) = {150}^{o}$

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3 years ago

Help I will give brainly if correct

yanalaym [24]

Answer: 135.42

Step-by-step explanation:

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4 years ago

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How many solutions does the system have? y=-2x -4 y=3x + 3

baherus [9]

Answer:

x=−7/5and y=−6/5

Step-by-step explanation:

Step: Substitute−2x−4foryiny=3x+3:

y=3x+3

−2x−4=3x+3

−2x−4+−3x=3x+3+−3x(Add -3x to both sides)

−5x−4=3

−5x−4+4=3+4(Add 4 to both sides)

−5x=7

−5x

−5

(Divide both sides by -5)

x=−7/5

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3 years ago

Lena spent $39 on fruit at the grocery store. She spent a total of $60 at the store. What percentage of the total did she spend

Likurg_2 [28]

Answer:

The answer is 65%

Step-by-step explanation: Divide 60 by 39 and multiply by 100. So it will look like 39/60=0.65*100=65%. I hope this helps. :)

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3 years ago