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nirvana33 [79]
2 years ago
9

Evaluate each expression when x = 8, and z = 10

Mathematics
1 answer:
sveticcg [70]2 years ago
7 0

Answer:

x = 2

y = 4

z = 8

1. xy

10

2. x + z

8

3. z - y

4

4. x + y + z

14Step-by-step explanation:

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3 years ago
Norm's electric bill for December 2013 was $149.32. In 2014 the electric bill was $194.31. Next year Norm expects the bill to be
docker41 [41]

A): 2013 = 149.32

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1 year ago
Which is the graph of the following equation?
lesantik [10]

Given equation is

\frac{(x-5)^2}{16} - \frac{(y-2)^2}{9}=1

The given equation is in the form of

\frac{(x-h)^2}{a^2} - \frac{(y-k)^2}{b^2}=1

a^2= 16  , so a=4

b^2 = 9 so b= 4

The value of 'a' is greater than the value of 'b'

So it is a Horizontal hyperbola

First two graphs are horizontal hyperbola

Here center is (h,k)  

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So center is (5,2)

Now we find vertices

Vertices are (h+a,k)  and (h-a,k)

We know h=5, k=2  and a=4

So vertices are (9,2)  and (1,2)

Second graph having same vertices and center

The correct graph is attached below


7 0
3 years ago
Read 2 more answers
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Elena L [17]
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2 years ago
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