Answer:
x=2
Step-by-step explanation
5x-10=0
fist add 10 to both sides to cancel the -10 on the left side
5x=10
then divide both sides to cancel the 5 in front of the x and to get the x all by itself
x=2
and then you have your answer!
Average or round?
average: 22.35
rounded: 26 and 19
Hope this is what you wanted!
Answer:
Step-by-step explanation:
Given:
Need:
First, let's look at the identities:
sum: 
difference: 
The question asks to find sin(A - B); therefore, we need to use the difference identity.
Based on the given information (value and quadrant), we can draw reference triangles to find the simplified values of A and B.
sin(A) = 
cos(A) = 
sin(B) = 
cos(B) = 
Plug these values into the difference identity formula.
Multiply.
Add.
This is your answer.
Hope this helps!
Answer:
(2, 7 )
Step-by-step explanation:
Given the 2 equations
y = 2x + 3 → (1)
y = 3x + 1 → (2)
Substitute y = 3x + 1 into (1)
3x + 1 = 2x + 3 ( subtract 2x from both sides )
x + 1 = 3 ( subtract 1 from both sides )
x = 2
Substitute x = 2 into either of the 2 equations for corresponding value of y
Substituting x = 2 into (1)
y = 2(2) + 3 = 4 + 3 = 7
Solution is (2, 7 )
Answer:
85.1 (I think)
Step-by-step explanation:
2×2=4
5×2=10
5×6=30
(3×10)÷2=15
3squared+10squared=√109=10.44
5×10.44=52.2÷2=26.1
26.1+4+10+30+15=85.1
