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Makovka662 [10]
2 years ago
15

Solve the equation 3y + xy = 23 for the variable y.

Mathematics
1 answer:
mixas84 [53]2 years ago
4 0

y = 23/(3 + x)

Step-by-step explanation:

\begin{aligned}\rm 3y + xy&= 23\\\rm y(3 + x)&= 23\\\bf y&=\bf\frac{23}{3+x}\end{aligned}

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vodomira [7]
-8
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4 0
3 years ago
Find the measure of angle h
AnnZ [28]

Answer:

62 degrees

Step-by-step explanation:

Since we know 3 sides of the triangle, we can use law of cosines.

{gk}^{2}  =  {gh}^{2}  +  {kh}^{2}  - 2(gh)(kh) \times  \cos(h)

{8}^{2}  =  {17}^{2}  +  {15}^{2}  - 2(17(15) \times  \cos(h)

64 = 289  + 225 - 510 \times  \cos(h)

64 = 314 - 510 \times  \cos(h)

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Take the arcos or cosine inverse

\cos {}^{ - 1}  =  \frac{25}{53}

Which is about 62 degrees.

7 0
2 years ago
the point A(7,1) is reflected over the point (4,0) and its image is point B. What are the coordinates of point B?
umka2103 [35]

Answer: The coordinates of point be are (1,-1)

Step-by-step explanation:

The reflected point will be equidistant from the point over which it is reflected as the original point and in the same line as the original point and the reflected point.

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x-values: 4-7 = -3   y-values: 0-1 = -1

Add to reflection point  x: 4-3 = 1     y: 0 -1 = -1

6 0
3 years ago
I don’t understand this helpp
Olenka [21]

Answer:

a. y2×

b.y1×

c.y1×

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2 years ago
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Answer: 1. 125

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Step-by-step explanation: Hope this helped! :)

5 0
3 years ago
Read 2 more answers
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