Answer:
1 is false
2 is true
3 is false
4 is false
Step-by-step explanation:
y-33=-2
y-33+32=-2+33
y=31
31=3x-2
31+2=3x-2+2
33=3x
33/3=3x/3
11=x
solution is (11,31)
graph of y=-3x-2... y=31 would be a horizontal line on 33 at the y axis
Answer: 15
Step-by-step explanation:
20 ÷ 4 + (6 x 2) − 2
Start by solving the parenthesis
20 ÷ 4 + (12) − 2
Now using order of operations we know to do division before addition/subtraction
5+12-2
Solve addition/subtraction from left to right
17-2
15
For the matrix
the determinant using the method of expansion by minors, expanding on the third row is:
Answer:
First, we compute the determinants of the minors:
Therefore:
Answer:
Step-by-step explanation:
<u>z is directly proportional to x</u>
- z = kx, where k is coefficient
If z = 12 when x = 3
<u>Then we have</u>
So the coefficient is 4
<u>When z = 18, we have</u>
We have the following expression:
6n ^ 5 (7n ^ 4-5n + 5)
We can rewrite the expression using power properties.
We have then:
42n ^ (4 + 5) - 30n ^ (1 + 5) + 30n ^ 5
Rewriting:
42n ^ 9 - 30n ^ 6 + 30n ^ 5
Answer:
the product is:
42n ^ 9 - 30n ^ 6 + 30n ^ 5