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4 years ago

Which situation is best represented by the equation below? x - 30.83 = 85.73

Mathematics

1 answer:

DiKsa [7]4 years ago

5 0

If you are looking for a word problem heres one.
I have x dollars and I spent $30.83 now I have $85.73 left. What is x?

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the probability of a number cube landing on 4 is 1/6 if a number cube is tossed 12 times how many times can it be expected to la

oksano4ka [1.4K]

The answer is twice, because 1/6 of 12 is 2

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3 years ago

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Inessa05 [86]

Answer:

Idk how to explain but I think its C

Please don't delete my answer unless its wrong to those who love deleteing answers

Step-by-step explanation:

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3 years ago

Solve sin 0 + 1 = cos20 on the interval 0 ≤ 0 < 2pi. Show work please!

yan [13]

Answer:

$\theta=\frac{\pi}{2},\frac{3\pi}{2}\frac{2\pi}{3}\frac{4\pi}{3}$

Step-by-step explanation:

You need 2 things in order to solve this equation: a trig identity sheet and a unit circle.

You will find when you look on your trig identity sheet that

$cos(2\theta)=1-2sin^2(\theta)$

so we will make that replacement, getting everything in terms of sin:

$sin(\theta)+1=1-2sin^2(\theta)$

Now we will get everything on one side of the equals sign, set it equal to 0, and solve it:

$2sin^2(\theta)+sin(\theta)=0$

We can factor out the sin(theta), since it's common in both terms:

$sin(\theta)(2sin(\theta)+1)=0$

Because of the Zero Product Property, either

$sin(\theta)=0$ or

$2sin(\theta)+1=0$

Look at the unit circle and find which values of theta have a sin ratio of 0 in the interval from 0 to 2pi. They are:

$\theta=\frac{\pi}{2},\frac{3\pi}{2}$

The next equation needs to first be solved for sin(theta):

$2sin(\theta)+1=0$ so

$2sin(\theta)=-1$ and

$sin(\theta)=-\frac{1}{2}$

Go back to your unit circle and find the values of theta where the sin is -1/2 in the interval. They are:

$\theta=\frac{2\pi}{3},\frac{4\pi}{3}$

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3 years ago

What's the next number for this pattern 2,3,5,9,17 is it a.34 b.31 c.32 or d.33

Igoryamba

The answer is D 33 because it starts by adding 1 and then doubles the amount added every time<span />

5 0

4 years ago

Read 2 more answers

A notha wun ........

geniusboy [140]

Slope is -1/5

Y-intercept is 21

Equation is y=-1/5x+21

Yes it’s proportional :)

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3 years ago

Read 2 more answers