Answer:
x^2-2x-13
Step-by-step explanation:
f(x) = 2x-5
g(x) = x^2 -4x-8
f(x) +g(x) = 2x-5 + x^2 -4x-8
Combine like terms
= x^2+2x-4x-5-8
=x^2-2x-13
Answer: 1/36
Step-by-step explanation:
Calm down, I'm here to help! You might want to watch some videos on how to solve negative powers, but it's simpler than you think.
An exponent expression is formatted as a^b.
If "b", the exponent, is negative, then you can solve expression like this:
1/a^-b
By writing -b, I mean the opposite of b. For example, the opposite of -2 is 2.
Let's use that rule to solve this problem.
1/6^-(-2)
1/6^2
1/6*6
1/36
There you go! It's not too scary now, is it? Let me know if you'd like me to link some resources!
Answer:
Discount-.15*70=<u>10.50</u>
Final price-70-10.5=<u>59.5</u>
Answer:
The numbers are -14,-13 and -12
Step-by-step explanation:
<u><em>The correct question is </em></u>
Find three consecutive integers such that the sum of the first, twice the second and three times the third is -76. What is the number?
Let
x ----> the first consecutive integer
x+1 ---> the second consecutive integer
x+2 ---> the third consecutive integer
we have that
solve for x
apply distributive property
Combine like terms
subtract 8 both sides
Divide by 6 both sides
so
therefore
The numbers are -14,-13 and -12
Answer:
3) 361/11
4) 51
Step-by-step explanation:
for both problems, they give you the length of the segment so you just add both of the segments equal to the length of the whole segment. then for whatever you find as x, plug it into the equation.
ex. 7x+1+4x-3=42
or
5x-8+7x-12=10x-2
