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Stels [109]
2 years ago
8

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}

so

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

8 0
3 years ago
Read 2 more answers
Area of shaded area..
Afina-wow [57]
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4 0
3 years ago
I'm going to try this one more time...
irina [24]

Answer and Step-by-step explanation:

<u>C and D  is the answer.</u>

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.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

3 0
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 :)

5 0
2 years ago
Read 2 more answers
Bill got 60% off a new jacket. He ended up spending $18. What was the original price of jacket?
Virty [35]

Answer:

45

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

5 0
3 years ago
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