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kotegsom [21]
3 years ago
15

Which graph represents a linear function? (4 points)

Mathematics
1 answer:
leonid [27]3 years ago
4 0

Answer:

On the surface, it seems easy. Can you think of the integers for x, y, and z so that x³+y³+z³=8? Sure. One answer is x = 1, y = -1, and z = 2. But what about the integers for x, y, and z so that x³+y³+z³=42?

That turned out to be much harder—as in, no one was able to solve for those integers for 65 years until a supercomputer finally came up with the solution to 42. (For the record: x = -80538738812075974, y = 80435758145817515, and z = 12602123297335631. Obviously.)

Step-by-step explanation:

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Skye made a deposit of $625 into an account that earns 4% simple interest for 6 years. How much did Skye earn in interest at the
tatuchka [14]

Answer:

She will earn 150$

Step-by-step explanation:

4% = 0.04

0.04 x $625 = 25

Now we divide 25 by the number of years, which is 6.

6 x 25 = 150$

Therefore, Skye earns 150$ from interest over the course of 6 years.

5 0
3 years ago
Beth has $300. Each week,she buys a $15 CD and a $5 book. how much money will she have left after 6 weeks.
Stella [2.4K]
M = Mo - 20 * Weeks = 300 - 20 * 6 = 180 $
5 0
4 years ago
London has a collection of 260 coins. How many coins represent 25% of her collection?
Sergeu [11.5K]

Answer:

65 coins

Step-by-step explanation:

Set this problem up with a porportion.

\frac{?}{260} \frac{25}{100}

After that, cross multiple and divide.

25 times 260. Then divide by 100. That is then your answer.

8 0
3 years ago
Chris invests $18,000 into an account at an annual rate of 0.4% simple interest for 12 months. 5) Calculate the simple interest
ikadub [295]

Answer:do you have a screenshot

7 0
3 years ago
Read 2 more answers
What is the differentiation of 2cos2x
garri49 [273]

2cos2x=y

dy/dx(2cos2x)=-4sin2x

d/du cosu= u'×cos'u=-u'×sinu

d/du sinu= u'×sin'u= u'×cosu

d/du tanu = u'×(1+tan²u)

d/du cotu = u'×-(1+cot²u)

proof for cosu :

cos2x= 1-2sin²x

or 2cosx²-1

or cos²x-sin²x

we will one of this fro example let's take the first one

d/dx 1-2sin²x=0-2×2(sinx)×cosx=-2sin2x

and we have 2 in the begining so its -4sin2x

3 0
3 years ago
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