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3 years ago

Marty is explaining to Susan how to solve the following problem, -4 – (-5)

Mathematics

1 answer:

galben [10]3 years ago

8 0

Answer:

The correct option is:

To subtract an integer, add its opposite; -4 + 5 = 1

Step-by-step explanation:

We have given the situation that:

Marty is explaining to Susan how to solve the following problem, -4 – (-5)

He told Susan that to subtract an integer, add its opposite.

We know that whenever we solve the two terms, first we multiply the signs.

It means that the negative sign outside the round bracket will be multiplied with the negative sign of -5

That is,

-4 - (-5)

By multiplying the signs we get the terms:

-4 + 5

Thus the correct option is D....

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Fill in the gaps in the arithmetic sequence -3, _ ,_ , _, _, _ 12

lord [1]

Answer:

-0.5, 2, 4.5, 7, 9.5

Step-by-step explanation:

The given terms are 6 apart, so the common difference is 1/6 of their difference:

d = (12 -(-3))/6 = 15/6 = 5/2 = 2.5

Add 2.5 to each term to get the next one. Then the sequence is ...

-3, -0.5, 2.0, 4.5, 7.0, 9.5, 12

8 0

3 years ago

mihalych1998 [28]

Answer

Secured

Step-by-step explanation:

eee

4 0

3 years ago

Read 2 more answers

Am I dealing with harmonic stuff (trig)?

pochemuha

You just need to solve for when $y=0$ :

$\dfrac{\cos8t-9\sin8t}4=0\implies\cos8t-9\sin8t=0$

$\implies\cos8t=9\sin8t$

$\implies\dfrac19=\dfrac{\sin8t}{\cos8t}=\tan8t$

$\implies8t=\tan^{-1}\dfrac19+n\pi$

$\implies t=\dfrac18\tan^{-1}\dfrac19+\dfrac{n\pi}8$

where $n$ is any integer. We only care about when $0\le t\le1$ , which happens for $n\in\{0,1,2\}$ .

$t=\dfrac18\tan^{-1}\dfrac19\approx0.01$

$t=\dfrac18\tan^{-1}\dfrac19+\dfrac\pi8\approx0.41$

$t=\dfrac18\tan^{-1}\dfrac19+\dfrac\pi4\approx0.80$

8 0

3 years ago

a bevrage is made by mixing 3 parts of water with 5 parts of fruit juice how many parts of water are mixed with 1 part of fruit

romanna [79]

So the ratio is 3:5. Se need to find x:1 you do that by dividing each side by 5. 3/5 = .6

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3 years ago

Over what interval is the growth rate of the function decreasing?

aleksklad [387]

I think the rate is decreasing from:
(-infinity, ln9/3)

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3 years ago