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Shalnov [3]
3 years ago
6

Solve. (3x)^2 - 7y^2 when x = 3 and y = 2

Mathematics
2 answers:
aleksandr82 [10.1K]3 years ago
7 0
81-28-53 the answer is 53
Dennis_Churaev [7]3 years ago
4 0
The answer is 53. you can substitute x and y in equation

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Lamonte finds some nickels and quarters under the couch cushions. How many coins
Lemur [1.5K]

Answer:16 coins and x+y

Step-by-step explanation:

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2 years ago
Suppose 2/3 of people surveyed like the new trial flavor of chips. How many people would you have to select randomly, on average
mixas84 [53]

Answer:

To me it seems like 30

Step-by-step explanation:

5 0
3 years ago
Which set(s) of points show x in DIRECT PROPORTION to y?
vredina [299]

Answer: OPTION D.

Step-by-step explanation:

For this exercise it is important to remember that:

1.  Direct proportion equations have the following form:

y=kx

Where "k" is the constant of proportionality.

2. The graph of Direct proportions is an straight line that passes through the origin.

Observe the picture attached.

If you join the points G, C and A, you get a straight line that passes through the origin,

If you join the points F, G and H, you also get a straight line that passes through the origin,

Therefore, the sets of points show "x" in Direct proportion to "y", are:

\{F, G, H\} and   \{{G, C, A}\}

5 0
3 years ago
Read 2 more answers
I will gove brainlist ..The line graph shows the amount of water loss in a leaking tank during 7 hours.The owner pays $1for ever
kramer

Answer:

The owner will have to pay $ 125 after 2 hours.

Step-by-step explanation:

Given that the line graph shows the amount of water loss in a leaking tank during 7 hours, and the owner pays $ 1 for every 8 liters of water lost, to determine how much will he have to pay after 2 hours the following calculation must be performed :

((6000 - 5000) / 8) x 1 = X

(1000/8) x 1 = X

125 x 1 = X

125 = X

Therefore, the owner will have to pay $ 125 after 2 hours.

8 0
3 years ago
Explain why y^2 = x (X input, y output) is not a function.
sveta [45]

y^2 = x isn't a function because there is at least one value of x that produces multiple values of y. In fact, any x value greater than 0 yields two y values. If x = 0, then y = 0 is the only solution. ... Graphically, the equation fails the vertical line test, which is another way to determine that it is not a function.

7 0
3 years ago
Read 2 more answers
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