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Levart [38]
3 years ago
11

Use the graphing method to solve the system of linear equations:

Mathematics
1 answer:
gogolik [260]3 years ago
4 0

The answer is D, (2, 1)

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What value of a satisfies the following equation?<br><br> -2(a + 3) = -4a + 32
Yanka [14]

Answer:

a = 19

Step-by-step explanation:

-2(a + 3) = -4a + 32

-2a - 6 = -4a +32

<u> +2a        +2a       </u>

-6 = -2a + 32

<u>-32         -32</u>

-38 = -2a

divide by -2

<u><em>a = 19</em></u>

5 0
2 years ago
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What equation could be used to find the area of the stage in square meters ?
Novay_Z [31]

Answer:

The equation you would use is лr² (pi times radius squared).

The area of the stage would be 1963.5 square meters or 625л square meters

3 0
2 years ago
What is the length of AB?<br> O A. 9<br> O B. 18<br> O C. 48<br> D. 6
insens350 [35]
<h3>Answer:  A.  9</h3>

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

Explanation:

Draw in the segments AO and OC.

Triangle ABO is congruent to triangle CBO. We can prove this through the use of the HL theorem. HL stands for hypotenuse leg.

Since the triangles are congruent, this means the corresponding pieces AB and BC are the same length.

Then we can say:

AB+BC = AC .... segment addition postulate

AB+AB = AC .... plug in BC = AB

2*AB = AC

2*AB = 18

AB = 18/2 .... divide both sides by 2

AB = 9

In short, the chord AC is bisected by the perpendicular radius drawn in the diagram. So all we do is cut AC = 18 in half to get AB = 9.

6 0
2 years ago
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George scored 70, 92, 70, 90, and 95 on five physics tests. The mean, median, and mode of his scores are given below. Mean = 83.
oksano4ka [1.4K]

Answer:

mean; the average of George's scores is the mean = 83.4

Step-by-step explanation:

6 0
3 years ago
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Solve the equation 11x+16y=13y
aksik [14]

Answer:

x=-3y/11 , y=-11x/3

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

6 0
2 years ago
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