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2 years ago

I have no idea how to do number 4 and 5 please please help me?

Mathematics

1 answer:

adoni [48]2 years ago

4 0

All you have to do is add and then put it into an in proper fraction and them when you do that you got your answer if you dont know how to do that then allyou could do is just multiple a thats it

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The area of juan's garden after he adds a border x feet wide is equal to (4 + 2x)(6 + 2x). which polynomial represents the area

JulsSmile [24]

(4 + 2x)(6 + 2x) =
4(6 + 2x) + 2x(6 + 2x) =
24 + 8x + 12x + 4x^2 =
4x^2 + 20x + 24 <==

5 0

3 years ago

Sec theta - Csc theta / (csc theta)(sec theta)

Sophie [7]

Answer:

sin(x)-cos(x)

Step-by-step explanation:

$\frac{\frac{1}{cos(x)} - \frac{1}{sin(x)} }{\frac{1}{sin(x)} * \frac{1}{cos(x)} }$

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Simplify the numerator:

$\frac{{\frac{2(sin(x)-cos(x))}{sin(2x)} } }{\frac{1}{sin(x)} * \frac{1}{cos(x)} }$

Divide the fractions: <u>(a/b)/(c/d) = (a * d)/(b * c)</u>:

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Use the identity: <u>2cos(x)sin(x) = sin(2x):</u>

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

Cancel out the common factor (sin(2x)):

-cos(x) + sin(x)

Simplify:

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