Answer:
a=6 or -6
Step-by-step explanation:
Solve the determinant to get a²-36=0
(a-6)(a+6)=0
a=6 or -6
Answer:

Step-by-step explanation:
we know that
Using proportion

Answer:
It helps form the right angle = FALSE
Step-by-step explanation:
The legs form the angle
Rounding numbers means you change the number to a closer, easier number. For example if you want to round 56 to the nearest tenth, it would round to 60.
Estimating numbers is when you guess numbers. For example, if you want to estimate the measure used to measure a bed, i would estimate feet.
I hope this helped:))
Absolute value can never be negative
Absolute value: | |
| 1 | ( ) 5
1 ( ) 5
1 < 5
Hope this helped:)