3 years ago

I'm confused how do I simplify that??

1 answer:

8 0

Combine like terms (numbers, number w/ the same variable attached, etc) then solve the problem as recorded. Hope this helped! (:

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What is equivalent to y+4(x-5)+4y?

Inessa [10]

4(x-5)+5y is your answer

5 0

3 years ago

Verify the identity. 4 csc 2x = 2 csc2x tan x

vlada-n [284]

Step-by-step explanation:

$4csc(2x) = 2csc^2(x) tan(x)$

We start with Left hand side

We know that csc(x) = 1/ sin(x)

So csc(2x) is replaced by 1/sin(2x)

$4 \frac{1}{sin(2x)}$

Also we use identity

sin(2x) = 2 sin(x) cos(x)

$4 \frac{1}{2sin(x)cos(x)}$

4 divide by 2 is 2

Now we multiply top and bottom by sin(x) because we need tan(x) in our answer

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

$2\frac{sin(x)}{sin^2(x)cos(x)}$

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

We know that sinx/ cosx = tan(x)

Also 1/ sin(x)= csc(x)

so it becomes 2csc^2(x) tan(x) , Right hand side

Hence verified

6 0

3 years ago

Solve the equation P=KTV for the letter K.

ddd [48]

Answer:

K = $\frac{P}{TV}$

Step-by-step explanation:

P = KTV

Divide both sides by TV

(P/TV) = K

5 0

3 years ago

Keith used the following steps to find the inverse of f, but he thinks he made a error

astra-53 [7]

Answer:

Step-by-step explanation:

$\Large \boldsymbol{} f(x) \ \ inverse \ \ function \ \ (f(x))^{-1} \\\\ y=7x+5 \\\\x=7y+5 \\\\ y=\dfrac{x-5}{7} \ \ or \ \ f(x)^{-1}= \dfrac{x-5}{7}$

7 0

3 years ago

8x + 4 - 3 - x<br> PLEASE solve it!!!!

leva [86]

8x - x + 4 - 3
= 7x + 1

6 0

3 years ago

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