2 years ago

Mclaire155 THIS IS FOR YOU not and thank you

Mathematics

2 answers:

jeka57 [31]2 years ago

8 0

Answer:

shhdhd

Step-by-step explanation:

Oh wow great marks

Alex2 years ago

4 0

Congrats! That’s a really good mark!!

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Determine the number of possible triangles, ABC, that can be formed given A = 30°, a = 7, and b = 18.

zzz [600]

Answer:

none

Step-by-step explanation:

We are given a triangle ABC with ∠A = 30°, sides a = 4 and b = 10.

According to the 'Law of Sines- Ambiguous Case', we have,

If a < b×sinA, then no triangle is possible.

If a = b×sinA, only one triangle is possible

If a > b×sinA, two triangles are possible.

So, we have,

b×sinA = 10 × sin30 = 10 × 0.5 = 5.

Now, as

4 = a < bsinA = 5.

We get, according to the rule, no triangle is possible.

8 0

2 years ago

If m<BDC = 20, m arc AB = 140, and marc CD = 120, find m<1.<br><br>

lara [203]

Answer:

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Step-by-step explanation:

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2 years ago

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If sin ⁡x=7/25, and 0 < x < π/2, what is cos⁡(x−3π/2)?

Likurg_2 [28]

Answer:

$Cos(x-\frac{3\pi}{2})=-\frac{7}{25}$

Step-by-step explanation:

Remember that $cos(x-y)=cos(x)cos(y)+sin(x)sin(y)$

Then,

$cos(x-\frac{3\pi}{2})=cos(x)cos(\frac{3\pi}{2})+sin(x)sin(\frac{3\pi}{2})\\$

But $cos(\frac{3\pi}{2})=0$ and $sin(x)=\frac{7}{25}$

Then

$cos(x-\frac{3\pi}{2})=cos(x)*0+\frac{7}{25}*sin(\frac{3\pi}{2})\\=\frac{7}{25}*(-1)=\frac{-7}{25}$

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2 years ago

On-the-Go Phone Company has two monthly plans for their customers. The EZ Pay Plan costs $0.15

ddd [48]

Answer:

a. 0.15x

b. 40+0.05x

c. 0.15x=40+0.05x

15x=4000+5x

x=400 min

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2 years ago

What is the factored form of 8x^24-27^6

gladu [14]

The answer is x^6(2X^6-3)(4X^12+6X^6+9)

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2 years ago