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4 years ago

10

See attachment. Are all these angles considered alternate interior? Angle E and H, Angle F and G, Angle J and K, Angle L and I,

Angle B and C, Angle D and A.

1 answer:

GREYUIT [131]4 years ago

7 0

Yes, if the lines were extended, these would form alternate interior angles.

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In circle "R" below, determine the length of arc AB if BR = 5 units.

riadik2000 [5.3K]

$l=2 \pi r( \frac{degrees}{360} )$

$l=2 \pi$ × 5 × $\frac{135}{360}$ = 11.78

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4 years ago

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

KiRa [710]

Answer:

1863 $meters^{2}$

Step-by-step explanation:

( 23 x 12 ) x 2 = 552

69 x 19 = 1311

1311

<u>+552</u>

= 1863 $meters^{2}$

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3 years ago

I'm confused on how to go about solving this, I got to this part:

SCORPION-xisa [38]

Answer:

(3, -4, 6)

Step-by-step explanation:

The last equation has 2 variables

If we double the first equation and subtract the second one from it, we get rid of y and then comparing the new equation with the last one we can easily solve it

<u>Step 1</u>

2(2x + y + 3z) = 2*20
4x + 2y + 6z = 40

<u>Step 2</u>

4x - x + 2y - 2y + 6z - (-z) = 40 - (-11)
3x + 7z = 51

<u>Step 3</u>

3x + 7z - (3x - 2z) = 51 - (-3)
7z + 2z = 54
9z = 54
z = 6

<u>Then finding x</u>

3x - 2*6 = -3
3x = 12 - 3
3x = 9
x = 3

<u>Then finding y using the first equation</u>

2*3 + y + 3*6 = 20
y + 24 = 20
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<u>The answer:</u>

(3, -4, 6)

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3 years ago

Evaluate the following expression for x = -2<br> 10x+1

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Answer:

x = -1/13 = -0.077

Step-by-step explanation:

1.1 Solve : 13x+1 = 0

Subtract 1 from both sides of the equation :

13x = -1

Divide both sides of the equation by 13:

x = -1/13 = -0.077

One solution was found :

x = -1/13 = -0.077

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4 years ago

Lesson Test Problem 3

Firdavs [7]

Answer:

Step-by-step explanation:

8:15-12:30 is 15 min and 4 hours

1:30-5:30 is 4 hours

8 hours and 15 minutes

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3 years ago

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