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3 years ago

In ABC, C is a right angle, what is the measure

Mathematics

2 answers:

shtirl [24]3 years ago

8 0

The answer is 67.6

You have to find the angle that has cos=8/21=0.381.

ch4aika [34]3 years ago

3 0

Answer:

67.6 degrees

Step-by-step explanation:

You need to use cosine to solve this.

so, cosine is adjacent leg over hypotenuse. which is 8/21. and it is 0.381.

and when you do cos^-1 (0.381), then it is 67.6.

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What’s an equation for Five times a number

aalyn [17]

Answer: 5 x ?

Step-by-step explanation:

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3 years ago

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F(x)= x^2– 3x + 9 g(x) = 3x^3+ 2x^2– 4x – 9 Find (f - g)(x).

denis-greek [22]

Answer:

$\large \boxed{\sf \ \ -3x^3-x^2+x+18 \ \ }$

Step-by-step explanation:

Hello, please consider the following.

$(f-g)(x)=f(x)-g(x)=x^2-3x+9-(3x^3+2x^2-4x-9)\\\\=x^2-3x+9-3x^3-2x^2+4x+9\\\\=\boxed{-3x^3-x^2+x+18}$

Hope this helps.

Do not hesitate if you need further explanation.

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3 years ago

Solve the proportion 20/16=X/80 A=6.25 B=1600 C=100 D=160

mamaluj [8]

C. 100 is the aswer i thinck

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3 years ago

PUZZLE #2

Maksim231197 [3]

I have no clue I don’t understand this

4 0

2 years ago

Given the domain (-2,2,4) what is the range for the relation 3x-y=3

Bumek [7]

Answer:

Given the domain, the range for 3x-y = 3 is {-9, 6, 9}

Step-by-step explanation:

First you have to put the relation in terms of y ⇒ 3x - y = 3⇒ 3x -3 = y

⇒ y = 3x - 3.

Then you replace the values indicated by the domain to find their "y" values (the ones that constitute the range).

f(-2) = -9

f(2) = 6

f(4) = 9.

Finally, the range for the given domain is {-9, 6, 9}

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3 years ago