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2 years ago

If f(x) = 2x2 - x, find f(-3).

Mathematics

1 answer:

vlabodo [156]2 years ago

7 0

9 Because you have to substitute x with -3

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The weight of an object on mars is about 2/5 its weight on earth. how much would an 80 1/2 pound dog weigh on mars?

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Look at this equation it should help.

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2 years ago

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Which would the phrase "two times the quotient of a number and 3" look like as a variable expression?

Naya [18.7K]

2 n/3 would be the closest answer although it looks as if the 2 is supposed to be multiplied by n/3 which would lead me to write it as 2(n/3)

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3 years ago

To join a health club, a person must pay a $75 one-time fee plus a charge of $30 per month. This situation can be presented by a

Rudiy27

Answer:

y = 30x + 75

Step-by-step explanation:

every month you're paying 30 dollars for a fee.

the 75 dollars is simply the "down payment" so to say.

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2 years ago

In a word there are 8 letters. Of them c letters are vowels, and the rest are consonants. What part of all the letters of this w

Lera25 [3.4K]

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c = vowels

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c = 3

so, you've got three vowels

6 0

3 years ago

Select all of the scales that are equivalent to 3 cm to 4 km.

ra1l [238]

In mathematics, a scale can be described in charts as a marking system at predefined times, which determines the relationship between the units that are being used and their images on the graph, and the further calculation can be defined as follows:

Since in this question, the ratio is between 3 cm to 4 km you can make a $\bold{\frac{3}{4}=\frac{cm}{km}}$ split, and if you are split between 3 and 4, you get the ratio between $\bold{\frac{\frac{3}{4 \ cm}}{1\ km} = \frac{3\ cm}{ 4\ km}}$ .

$\bold{\to \frac{3 }{ 4}= 0.75}$

Therefore the final answer is "0.75 cm to 1 km"

Learn more:

brainly.com/question/15285394

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1 year ago