Alexandra paid 7 to park her car for 3 hours at the parking garage. The garage charges a constant hourly parking rate.

Mathematics

1 answer:

AlladinOne [14]3 years ago

5 0

Answer:

p*c=7

Step-by-step explanation:

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Triangle KNM is isosceles, where angle N is the vertex.

Anika [276]

Answer:

25°

Step-by-step explanation:

In isosceles triangle KNM, NL is a perpendicular bisector of angle KNM.

This means

$m\angle KNL=m\angle LNM$

Since

$m\angle KNL=(5x+10)^{\circ}\\ \\m\angle LNM=(6x-1)^{\circ},$

you have

$5x+10=6x-1\\ \\5x-6x=-1-10\\ \\-x=-11\\ \\x=11$

No, find the measure of angles KNL and LNM:

$m\angle KNL=(5\cdot 11+10)^{\circ}=65^{\circ}\\ \\m\angle LNM=(6\cdot 11-1)^{\circ}=65^{\circ}$

and the measure of angle KNM is

$m\angle KNM=m\angle KNL+m\angle LNM=65^{\circ}+65^{\circ}=130^{\circ}$

Angles adjacent to the base of isosceles triangle are congruent. The sum of the measures of all interior angles is 180°, then

$m\angle K=\dfrac{1}{2}(180^{\circ}-130^{\circ})=25^{\circ}$

5 0

3 years ago

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A sum of 2 numbers is 8,8, thier diffrence is 1.8

Elena L [17]

Answer:

457

Step-by-step explanation:

57;;/*_&445

7 0

2 years ago

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HELP! Finding slope. Questions A B and C please <br> I’ll give “brainlyst” and 5 stars

inna [77]

$\bf (\stackrel{x_1}{10}~,~\stackrel{y_1}{14})\qquad
(\stackrel{x_2}{14}~,~\stackrel{y_2}{12})
\\\\\\
slope = m\implies
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{12-14}{14-10}\implies \cfrac{-2}{4}\implies -\cfrac{1}{2}
\\\\\\
\begin{array}{|c|ll}
\cline{1-1}
\textit{point-slope form}\\
\cline{1-1}
\\
y-y_1=m(x-x_1)
\\\\
\cline{1-1}
\end{array}\implies y-14=-\cfrac{1}{2}(x-10)
\\\\[-0.35em]
~\dotfill$

$\bf y-14=-\cfrac{1}{2}x+5\implies y=-\cfrac{1}{2}x+19\impliedby
\begin{array}{|c|ll}
\cline{1-1}
slope-intercept~form\\
\cline{1-1}
\\
y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}}
\\\\
\cline{1-1}
\end{array}$

now, the x-axis has years after 1987, so 2007 is 20 years after 1987, 1987 + 20 = 2007, therefore x = 20, what is y?............ $\bf y=-\cfrac{1}{2}(20)+19$ .