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Ronch [10]
3 years ago
14

Which graph best represents the function f(x) = 2x^2 -2

Mathematics
1 answer:
astraxan [27]3 years ago
5 0

Answer:

The u equation, a parabola

Step-by-step explanation:

This is a quadratic equation, since we have a variable 'x' raised to second power.

The vertex can be found using the formula x=-b/2a when the parabola is written as y=ax2 + bx +c.

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If blueberries cost $4.00 per pound, how many pounds of blueberries can you buy for $1.00?
Masteriza [31]

If x is the number of berries you can buy with 1 dollar,

1 pound of blueberries = $4.00

x pound of berries = $1.00

Lets set up a proportion- because these are directly proportional- when there is more pounds of berries, it will cost more.

\frac{1}{4.00} = \frac{x}{1.00}

Cross multiply

4x=1

Divide both sides by 4 to isolate x

x=1/4 or $0.25

7 0
3 years ago
Azul has four green pics and no orange pics you add orange picks so that there are two orange picks for every 1 green pick how m
mr_godi [17]
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7 0
3 years ago
The product of 2, and a number increased by 7, is -36
vodka [1.7K]

Here is the equation you should use.

2(x+7) = -36

4 0
3 years ago
A store bought jeans at a cost of $40 a pair. Select all the statements that are true.
Goshia [24]

Answer:

True statements:

If the price is marked up 25%, the selling price will be $50.

If the selling price is $70, the price is marked up 75%.

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
Jenna bought books for $3 each and a game for $5. She spent a total of $26. How many books did she buy?
OleMash [197]

Answer:

she bought 7 books and 1 game. 1.)each=multiplication. 2.)and= addition.

Step-by-step explanation:

3.)26-5(the game)=21 divide by 3=7 books

4.)p-5=x divided by 3

3 0
3 years ago
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