property
Answer:
-3n-+21
Step-by-step explanation: 1. Get rid of the Parenthesis , so times -3 by what’s inside
2. If you multiply -3 by n you get -3n
3. if you multiply -3 by -7 you get 21 , you get a positive because a negative times a negative is a positive
4. so now you have -3n + 21 you don’t add these because -3n has a variable and 21 doesn’t have a variable , and if 21 did have a variable it would need to also be n
Answer:
−3n + 21
Step-by-step explanation:
This is the answer because:
1) You have to distribute everything from outside of the parenthesis to the inside
2) -3 times n is -3n
3) -3 times -7 is 21
4) Therefore, the answer is −3n + 21
Hope this helps!
Answer:
would that be 12
Step-by-step explanation:
14+6a-8=18
The solution to the given equation 14 + 6a - 8 = 18 is a = 2.
A solution to an equation is a number that can be substituted for the variable to provide a true number statement.
The equation is given in the question, as follows:
14 + 6a - 8 = 18
We have to determine the solution to the given equation.
As per the question, we have
14 + 6a - 8 = 18
Rearrange the terms in the above equation, and solve for a:
6a = 18 - 14 + 8
Apply the arithmetic operations,
6a = 12
Divided by 6 into the above equation, and we get
a = 2
Thus, the solution to the given equation is a = 2.
Learn more about the solution to the equation here:
#SPJ2
(I have a graphing calculator capble of matrices so yo don't have to solve the system of equations by hand, use rref (reduced row echelon form))
values of a, b, and c and the equation of the graph of the parabola
y=ax^2+bx+c
such that is passes through the points
(2,-15)
(-5,-29)
(-3,5)
rewrite it in the form (x-h)^2=4P(y-k)
show all work
if I were to sub the points in I would ge
(2,-15): -15=4a+2b+c
(-5,-29): -29=25a-5b+c
(-3,5): 5=9a-3b+c
then solve for a, b and c
I don't know how to solve, please help
(if I don't undestand your answer, I will either report or ask you to explain more)