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Rasek [7]
2 years ago
14

What is the difference between these two linear equations? Y=3x - y=-3x

Mathematics
1 answer:
Rashid [163]2 years ago
3 0
Y=3x has a positive slope, and Y=-3x has a negative slope.
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Which of the following could be a function with zeros of —3 and 2? А f(x) = (x - 3)(x + 2) B f(x) = (x = 3)(x - 2) © f(x) = (x+3
Zinaida [17]

Answer:

C

Step-by-step explanation:

to find the zeros you look at what value you would fill in for x to make zero, so (x+3) would have a zero of -3 and (x-2) would have a zero of 2

6 0
3 years ago
If a car traveled 110.5 miles in two hours, how far did it travel in one hour?
Paul [167]

Answer: 55.25

Step-by-step explanation:

Divide 110.5 by 2 which give you 55.25

So in every hour the car travels at 55.25 miles per hour

8 0
3 years ago
3 yards of fabric for $13.47
kumpel [21]
Are you looking for the unit price?

If so, you would divide 13.47 by 3.

This would give you $4.49 per yard.
5 0
3 years ago
Read 2 more answers
Brooklyn has a goal to save $8,000 to buy a new entertainment system. In order to meet that goal, she deposited $4,132.79 into a
densk [106]
To see how much interest she'll get after a quarter:

$4132.79 + ($4132.79 × 0.048) = $4331.16

After two quarters:
$4331.16 + ($4331.16 × 0.048) = $4359.06

You can keep going until eventually reaching $8000 then see how many quarters has passed. That's a lot of calculator work!

There's another way that uses less calculation, but more algebra. I call it the exponential formula method! There's this general formula for stuff that increases exponentially, like virus, population, and MONEY:

m= d {e}^{tc}

M is money, d is deposit, t is time taken, and c is just some unknown constant related to the interest rate. There's also the natural logarithm form of this equation, which will come in handy later:

ln( \frac{m}{d} ) = tc

Alright first we gotta find that constant c for this equation to be useful! Let's plug in stuff we know.

ln( \frac{4331.16}{4132.79} ) = (0.25)c

We know how much she'll have after one quarter (0.25 years), and we know how much she deposited initially.

After pressing some buttons on the calculator we'll find that c = 0.1875.

Great! Now we can use that formula to find how many years (t) it'll take to reach M=$8000. To save time I'm going to use the natural log form:

ln( \frac{8000}{4132.79} ) = t(0.1875)

That will give us t = 3.522 which means it'll take approximately 3.5 years for her deposit to reach $8000!
5 0
3 years ago
Read 2 more answers
What decimal is equivalent to 1.25%
matrenka [14]
The answer is 0.0125
5 0
3 years ago
Read 2 more answers
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