3 years ago

Sin x =.3 what is the cos x =?

Mathematics

1 answer:

nalin [4]3 years ago

5 0

Answer:

If you're asking what cosine 3 is it's 0.9999986292247

Step-by-step explanation:

I don't really understand the question

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F(x) = -2x + 5<br> f ( ) = 13

scZoUnD [109]

Answer:

Okay, I haven't done this a long time however I believe with this you have to solve the equation by doing substitution.

Step-by-step explanation:

so, if f (x) equals 13, you replace the x in the equation to 13.

f(x)=-2x+5

f(x)=-2(13)+5

f(x)=26+5

f(x)=31

I believe 41 would be your answer. Hope this is right and it helped!

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3 years ago

A piece of art is in the shape of an equilateral triangle with sides of 25in. Find the area of the piece of art. Round your answ

mojhsa [17]

A= $\sqrt{3}/4$ * side length^2
A=270.663
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3 years ago

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Please solve all with explanation

garri49 [273]

Answer:

1. $\frac{x^2}{y^8}$

2 a) $\frac{-49}{2}$

b) 0

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Step-by-step explanation:

$(\frac{x^{-3}y^4}{x^{-2}})^{-2}\\({x^{-3+2}y^4})^{-2}\\({x^{-1}y^4})^{-2}({x^{-1*-2}y^{4*-2})= \frac{x^2}{y^8}$

2. a)

$2 [(\frac{-1}{4}) -12 (-1)^2] - 5[24 +2 (-12)]^2\\2[(\frac{-1}{4}) -12] - 5[24 -24]^2\\2 * [(\frac{-1}{4}) -12] -0\\\frac{-49}{2}$

$-a^2b^2 - 3a^3b^2\\-\frac{1}{9}*1 - 3 * \frac{-1}{27} *1\\-\frac{1}{9} + \frac{1}{9}\\0$

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2 years ago

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NNADVOKAT [17]

Answer:

It is the one on the right

Step-by-step explanation:

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3 years ago

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4. The Smoothie Stand is selling their small smoothies for $4 for 16

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Answer:

Step-by-step explanation:

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