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Sidana [21]
3 years ago
15

Solve each equation by taking square roots. Show your work. Simplify your answers. Do not write your answers in decimal form.

Mathematics
1 answer:
natulia [17]3 years ago
6 0

Step-by-step explanation:

\sf \hookrightarrow \:  {n}^{2}  = 20 \\ \sf \hookrightarrow \:  \sqrt{ {n}^{2} }  =  \sqrt{20}  \\ \sf \hookrightarrow \: n =  \sqrt{20}  \\  \star \bf \: n = 2 \sqrt{5}  \\  \\ \sf \hookrightarrow \:  {a}^{2}  = 90 \\ \sf \hookrightarrow \:  \sqrt{ {a}^{2} }  =  \sqrt{90}  \\ \sf \hookrightarrow \: a =  \sqrt{90}  \\  \star \bf \: a = 3 \sqrt{10}

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Use rectangle ABCD and the given information to solve each problem.
solong [7]

Problem 1

<h3>Answers:</h3><h3>angle 6 = 50</h3><h3>angle 7 = 50</h3><h3>angle 8 = 40</h3>

--------------------

Work Shown:

point E = intersection point of diagonals.

x = measure of angle 6

y = measure of angle 8

angle 7 is also x because triangle AED is isosceles (AE = ED)

Focus on triangle AED, the three angles A, E, D add to 180

A+E+D = 180

x+80+x = 180

2x+80 = 180

2x = 180-80

2x = 100

x = 100/2

x = 50

So both angles 6 and 7 are 50 degrees.

Turn to angle 8. This is adjacent to angle 7. The two angles form a 90 degree angle at point A. This is because a rectangle has 4 right angles.

(angle7)+(angle8) = 90

50+y = 90

y = 90-50

y = 40

angle 8 = 40 degrees

=================================================

Problem 2

<h3>Answers:</h3><h3>angle 2 = 61</h3><h3>angle 3 = 61</h3>

--------------------

Work Shown:

Angle 5 is 29 degrees (given). So is angle 4 because these are the base angles of isosceles triangle DEC (segment DE = segment EC)

angle 3 and angle 4 form a 90 degree angle

x = measure of angle 3

(angle 3)+(angle 4) = 90

x+29 = 90

x = 90-29

x = 61

Angle 2 is congruent to angle 3 since triangle BEC is isosceles (BE = EC), so both angle 2 and angle 3 are 61 degrees each.

4 0
4 years ago
Please help asap <br> y+8 = -4(x-3) <br> What’s the slope
s344n2d4d5 [400]

Answer:

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Step-by-step explanation:

y= mx+c

y= -4x+12-8

y= -4x+4

Therefore, m is -4.

6 0
3 years ago
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Trava [24]
Like terms are 2m,3m. The coefficients are m I think.
5 0
4 years ago
50 POINTS
Snowcat [4.5K]

Answer:

-1

Step-by-step explanation:

took the exam on edge

5 0
3 years ago
Read 2 more answers
If x = 5/6 &amp; y = -1/5 what is the value of 6x/y + 9
DerKrebs [107]
Your first step is to do 6(x) which is 6 multiplied by x which is the value of 5\6
5 0
4 years ago
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