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Dmitriy789 [7]
3 years ago
5

Evaluate the expression below when x = -1. 2x∧2 − 5 ______ x + 9

Mathematics
1 answer:
kicyunya [14]3 years ago
6 0
If x= -1

so.
2(-1)^2-5 / (-1 +9)
=-3/8
=-0.375
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A company sells its printers to customers in order to make a profit of 25% calculate the price the company paid for a printer wh
ioda

The company paid $2000 for the printer

Step-by-step explanation:

Let x be the price of the printer for which the company bought it.

If x is the price of printer, then 25% of x will be the profit made by the company.

That is:

0.25x

According to the statement,

The cost and profit earned by company are equal to 2500

So,

x+0.25x = 2500\\1.25x = 2500

Dividing both sides by 1.25

\frac{1.25x}{1.25} = \frac{2500}{1.25}\\x = 2000

Hence,

The company paid $2000 for the printer

Keywords: Percentage, Profit

Learn more about percentage at:

  • brainly.com/question/10772025
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3 years ago
sofie and josh made 17 ounces of dough. they used 5/8 of the dough to make a pizza and used the rest to make calzones. what is t
fenix001 [56]
Answer=4.25 ounces or 4 1/4 ounces

17 ounces of dough

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Amount used for calzones=17*3/8=6.375 ounces

amount used for pizza- amount used for calzones=
10.625-6.375=4.25ounces
4 0
3 years ago
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The table shows how much a store charges for certain numbers of pencils. Number of pencils (p) Cost (c) 4 $0.72 7 $1.26 12 $2.16
Arada [10]
Find the rate of change, (y2-y1)/(x2-x1), from the data given...

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(1.26-0.72)/(7-4)=0.18

Since the rate is constant, this is a linear equation of the form y=mx+b.  Furthermore, since 0 pencils cost 0, b=0, so the cost of the pencils is simply the number of pencils times 18 cents...

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7 0
3 years ago
PLEASE HELP!!!!!!
Montano1993 [528]

Answer:

Yes. In general, the set of rational numbers is closed under addition, subtraction, and multiplication; and the set of rational numbers without zero is closed under division.

Step-by-step explanation:

:)

3 0
3 years ago
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A line has a slope of -5 and passes through the point (2, 2). What is the equation for this line?
koban [17]
To determine the equation of the line, we use the point slope form equation for this problem. It is expressed as:

y - y1 = m(x - x1)

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