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2 years ago

What's the expression for the sum of two and the quotation of a number x and five ??

Mathematics

1 answer:

7nadin3 [17]2 years ago

3 0

X + x = 2
1 × 5 = 5
So it would be blank plus blank gives you x=2
Then blank times blank gives you x=5

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If cos Θ = square root 2 over 2 and 3 pi over 2 < Θ < 2π, what are the values of sin Θ and tan Θ?

KIM [24]

Answer:

The answer is

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

$tan(\theta)=-1$

Step-by-step explanation:

we know that

$tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

$sin^{2}(\theta)+cos^{2}(\theta)=1$

In this problem we have

$cos(\theta)=\frac{\sqrt{2}}{2}$

$\frac{3\pi}{2}$

The angle $\theta$ belong to the third or fourth quadrant

The value of $sin(\theta)$ is negative

Step 1

Find the value of $sin(\theta)$

Remember

$sin^{2}(\theta)+cos^{2}(\theta)=1$

we have

$cos(\theta)=\frac{\sqrt{2}}{2}$

substitute

$sin^{2}(\theta)+(\frac{\sqrt{2}}{2})^{2}=1$

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

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

$sin(\theta)=-\frac{\sqrt{2}}{2}$ ------> remember that the value is negative

Step 2

Find the value of $tan(\theta)$

$tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

we have

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

$cos(\theta)=\frac{\sqrt{2}}{2}$

substitute

$tan(\theta)=\frac{-\frac{\sqrt{2}}{2}}{\frac{\sqrt{2}}{2}}$

$tan(\theta)=-1$

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3 years ago

Read 2 more answers

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Afina-wow [57]

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3 years ago

I'm going to try this one more time...

irina [24]

Answer and Step-by-step explanation:

C and D is the answer.

It needs a lot of mass so that it can collapse on itself to form a black hole, and when it dies, it also collapses on itself, forming a black hole.

A is incorrect because the mass of our sun hasn't made it to collapse, and it still has some billions of years before the mass increases.

B is incorrect because the hydrogen needs to be depleted in order for the sun/star to start the nuclear process.

#teamtrees #PAW (Plant And Water)

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3 years ago

[WILL GIVE BRAINLY IF CORRECT] While on vacation in Lanberry, Grace went out for a dinner that cost $108.63. If sales tax in Lan

irinina [24]

Answer:

$132.25

Step-by-step explanation:

108.63 * 0.0375 ≈ 4.07

108.63 * 0.18 ≈ 19.55

19.55 + 4.07+ 108.63 = 132.25

Have a good day :)

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2 years ago

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Bill got 60% off a new jacket. He ended up spending $18. What was the original price of jacket?

Virty [35]

Answer:

Step-by-step explanation:

first create a proportion.

40/100 = 18/x

you're trying to find x, the original price, so to find x you'll need to cross multiply. 18 times 100 divided by 40, which is 45.

The original price was $45

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3 years ago