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3 years ago

What is the value of the equation below when a=3 and b=7 a2-2b

Mathematics

1 answer:

Flauer [41]3 years ago

7 0

This equation uses substitution
a=3 b=7
a2-2b
(3)2-2(7)
5-14
-9

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A scrapbooking store is selling rubber stamps for four dollarsand $4.95 each. The total sales F(n) is a function of the number o

just olya [345]

A. Independent variable: number of rubber stamps n sold. Dependent variable: F(n), the total sales.

B. Only whole numbers. It is impossible to have negative and/or fractional stamps.

C. F(n) = $4.95n, which is 4.95 times n.

So, plugin 5 for n

$f(5)= \$4.95(5)$

F(n) = $24.75

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2 years ago

Read 2 more answers

The value of x and y of given equation by using cramer's rule; 2x-y=5, x-2y=1

Firdavs [7]

Answer:

x=3 and y=1

Step-by-step explanation:

First find the deteminant

That is ad-bc

ᵃ ᵇ

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3 years ago

dybincka [34]

Answer:

$57.2\ ft$

Step-by-step explanation:

we know that

The formula of slope is "rise over run", where the "rise" (means change in y, up or down) and the "run" (means change in x, left or right)

In this problem

The tangent of angle of 5 degrees is equal to the quotient of "rise over run"

Let

y ----> the rise of the ramp

x ----> the run of the ramp

$tan(5^o)=\frac{y}{x}$

we have

$y=5\ ft$

substitute and solve for x

$tan(5^o)=\frac{5}{x}$

$x=\frac{5}{tan(5^o)}$

$x=57.2\ ft$

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3 years ago

I went to the candy store last weekend and I bought a total of 10 packs of candy. I bought M&Ms for $1 per pack and Twizzler

mario62 [17]

Let's see. We can clarify a few things to make the question easier.

-We bought 10 packs of candy
-M&Ms are $1 per pack
-Twizzlers are $0.5 per pack

We need to find out how many bags of M&Ms we bought by only spending $6.

There are many combinations you can use to get to $6. However, I'm not sure what the format is. For example, you could buy 4 twizzler packs and then use the remaining money to find out how many M&Ms you bought. But this seems to be open to answers. Sorry

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2 years ago

Find the volume of the figure. Round to the nearest tenth if necessary.

Nonamiya [84]

Answer:

Step-by-step explanation:

i am not sure how to do this one but i am sure that if you look it up on google you'll fund the answer. Just saying.

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2 years ago