Hey man! I'm here to help. I'm in Grade 8 too :)
Answer: 12+8x
Step-by-step explanation:
1) 4(3+2x)- Distribute the 4
4x3+4x2x t get 12+8x
Answer:
<h2>
0</h2>
Step-by-step explanation:
Given,
x = 
Now, let's find the value of 2x - 5

plug the value of x

Reduce the number with Greatest Common Factor 2

The sum of two opposites equals 0

Hope this helps..
best regards!!
Answer:
64 =theta
Step-by-step explanation:
We have a right triangle.
We know the adjacent side and the hypotenuse
adjacent/ hypotenuse = cos theta
7/16 = cos theta
Take the inverse cos of each side
cos ^-1 ( 7/16) = cos ^ -1 cos theta
64.05552023 = theta
64 =theta