Answer:
Step-by-step explanation:
To find the product of two matrices we need to multiply the elements of each row of the first matrix by the elements of each column in the second matrix. Then we should add the products. Then:
× = =
The term "x" refers to the multiplication sign.
Then, the solution is
Step-by-step explanation:
I would assume the answer would be a. 18 assuming your trying to find the entire value of a triangle but have a missing value
Answer:
jiri's age is 66 years old
Step-by-step explanation:
76-10= 66 years old
The answer to it would be C.
Answer:
y = 3 (x+8)^2 -7
Step-by-step explanation:
The vertex form of the equation is
y = a(x-h)^2 +k
where (h,k) is the vertex
y = a (x- -8)^2 + -7
y = a (x+8)^2 -7
Now substitute the point into the equation to determine a
-4 = a (-7+8)^2 -7
-4 = a (1^2) -7
-4 = a -7
Add 7 to each side
-4+7 = a-7+7
3 =a
y = 3 (x+8)^2 -7