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blondinia [14]
3 years ago
14

Determine whether Y= 2x^2 -1 is a linear equation. If so , write the equation in standard form. If Not PLEASE Explain?​

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
5 0

Answer:

not a linear equation

Step-by-step explanation:

its a quadratic equation bcz whenever the power of variable exceeds 1 it is not a linear equation then. even if we plot a graph by assuming values of x we will see a curve is forming hence not a linear equation

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Geoff earns 10% commission on his total sales at work.
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$1350

Step-by-step explanation:

10% of 1350= 135 meaning the sales total wes 1350.

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What is 25×10 to the power of 6 in standard form
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David is buying a cheese wheel priced at 650 before tax. The store charges 8%, percent sales tax.
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Mandy is selling pancakes and waffles at her diner. On Monday she sold a total of 300 pancakes and waffles. If she charges $3 pe
elena-s [515]

Answer:

Mandy sold 250 pancakes and 50 waffles.

Step-by-step explanation:

From the information given, you can say that the sum of pancakes and waffles is equal to 300:

x+y=300

Also, the statement indicates that she charges $3 per pancake, $1 per waffle, and made a total of $800 and you can express this as:

3x+y=800

You have the following equations:

x+y=300 (1)

3x+y=800 (2), where:

x is the number of pancakes she sold

y is the number of waffles she sold

Now, you can solve for x in (1):

x=300-y (3)

Then, you can replace (3) in (2):

3(300-y)+y=800

900-3y+y=800

900-800=2y

100=2y

y=100/2

y=50

Finally, you can replace the value of y in (3) to find x:

x=300-50

x=250

According to this, the answer is that Mandy sold 250 pancakes and 50 waffles.

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2 years ago
Evaluate e/4 +2f when e=12 and f =1/2
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12/4 = 3 + 2x 1/2
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