How do I solve this? 3/4x-1/4x+14=3

1 answer:

4 0

Circle all the one with the variable x and add them or subtract them (depends if it's a positive or negative) then add or subtract the number with out a variable

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Someone help me with this

dlinn [17]

Answer:

x=58

Step-by-step explanation:

I think it's helps you

6 0

3 years ago

Which of these is a solution to the equation 2(x – 5) = 9 – 3x + 6 + 8 + 3x + 7? A.x = 10

koban [17]

First, multiply the 2 times (x-5) and you get 2x-10 on the left side.
Then on the right side, add up all the similar terms and you get 30 (the -3x and +3x cancel each other out.
2x-10=30
Then add 10 to both sides and you get 2x=40.
Then divide both sides by 2 and you get x=20.
Answer is B.

4 0

4 years ago

What is the derivative of f(x)= 3cos^2 (x)

Igoryamba

$\large\begin{array}{l} \textsf{Finding the derivative of}\\\\ \mathsf{f(x)=3\,cos^2\,x} \end{array}$

$\large\begin{array}{l} \textsf{You can differentiate it using the chain rule}\\\\ \mathsf{f'(x)=(3\,cos^2\,x)'}\\\\ \mathsf{f'(x)=3\,(cos^2\,x)'}\\\\ \mathsf{f'(x)=3\cdot 2\,(cos\,x)^{2-1}\cdot (cos\,x)'}\\\\ \mathsf{f'(x)=6\,(cos\,x)^1\cdot (-sin\,x)}\\\\ \boxed{\begin{array}{c}\mathsf{f'(x)=-6\,cos\,x\,sin\,x} \end{array}}\qquad\checkmark \end{array}$

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$\large\textsf{I hope it helps.}$

Tags: derivative trig function cosine cos power chain rule differential calculus

3 0

3 years ago

Read 2 more answers

How many times can 455 go to 60

Pavlova-9 [17]

Seven and if you dividing (hint your remainder is 35)

3 0

4 years ago

What is the answer to this question? (The one in the middle)

Delicious77 [7]

Let f=number of field goals and a=number of points after.
a+f=38
a+3f=70
.
a+3f=70

a+ f=38
-------subtract
2f=32
.
f=16 field goals he kicked last season.

4 0

4 years ago