Can I get help with these too? Thank you!!!!!

Mathematics

1 answer:

Anastasy [175]3 years ago

7 0

For ABC:

The interior angle of C is 180 - 142 = 38
The three interior angles add up to 180°
(2x - 15) + (x - 5) + 38 = 180
3x - 20 + 38 = 180
3x + 18 = 180
3x = 162
x = 54

The measure of angle ABC = x - 5 = 54 - 5 = 49

For JKL:
The interior angle of L is 180 - 100 = 80°
The 3 interior angles add up to 180°
(2x + 27) + (2x - 11) + 80 = 180
4x + 16 + 80 = 180
4x + 96 = 180
4x = 84
x = 21

The measure of angle JKL is 2x - 11 = 2(21) - 11 = 42 - 11 = 31°

You might be interested in

Cassidy wrote the linear equation y=5x+4 Then, she wrote the equation of the line that is parallel to y=5x+4 and that passes thr

Daniel [21]

Well, again y=5x+4 is in slope-intercept form, therefore $\bf y=\stackrel{slope}{5}x+4$ .

so then, a parallel line to a line with that equation, will also have the same slope, therefore, what's the equation of a line whose slope is 5 and goes through 8, -2?

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{8}}\quad ,&{{ -2}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 5
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-(-2)=5(x-8)\implies y+2=5x-40
\\\\\\
y=5x-40-2\implies y=5x-42$

3 0

3 years ago

Which of the following sets of ordered pairs does not represent a function?

Juliette [100K]

The answer is C because every input should only have one output in this case we have (1,2) and (1,3)

5 0

3 years ago

Read 2 more answers

The perimeter of the rectangle is 28 units, what is the value of w?

Nadusha1986 [10]

Perimeter= 2(L+W)
2(L+W)=28
2(2W-1+W)=28
2(3W-1)=28
6W-2=28
6w=30
W=5

in short the answer is 5

5 0

3 years ago

Read 2 more answers

In the image below, 10 is the long leg of the 30-60-90 triangle. True or false?

never [62]

The measure of the angle between the hypotenuse and the short leg is 60° and we can conclude that the side with length 10 is not the long leg of the 30 - 60 - 90 right triangle. (Right choice: False)

<h3>Is the length of a known arm in a 30 - 60 - 90 right triangle the long arm?</h3>

In accordance with geometry, the length of the long arm of a 30 - 60 - 90 right triangle is √3 / 2 times the length of the hypotenuse, the length of the short arm is 1 / 2 times the length of the hypotenuse and the length of the long arm is √3 times the length of the arm.

Thus, the measure of the angle between the hypotenuse and the short leg is 60° and we can conclude that the side with length 10 is not the long leg of the 30 - 60 - 90 right triangle. (Right choice: False)

To learn more on right triangles: brainly.com/question/6322314

#SPJ1

3 0

1 year ago

ioda

I don’t know the answer sorry

5 0

3 years ago