X= + or- square root 66 i solved using the pq formula but u can also use the quadratic formula as well and the square root formula but I'ma show u how to solve it with pq it's on this image hope it helps and mark me brainliest
Answer: pass 12 fail 12 passes 15 fail1 3
Step-by-step explanation:
pass 12 fail 12
pass 15 fail 13
X^2 + 9 + 7 = 20
X^2 +16 = 20
X^2 = 20-16
X^2 = 4
Root 4 = 2
X=2
Step 1: Convert the denominators to the same number.
1/9 = 2/18
2/3 = 12/18
5/18
Step 2: Add the numerators.
12 + 2 + 5 = 19
Step 3: Convert to mixed number.
19/18 = 1 1/18
Hope this helps! :)
Answer:
1)
.
2)
3)
4)
5)
6)
7)
8)
Step-by-step explanation:
In the given number lines, rightarrows represent positive integers and leftarrows represent negative integers.
1)
In first number line we have two rightarrows.
Rightarrow from 0-4 = 4
Rightarrow from 4-9 = 5
So, required sum is
.
Similarly,
2)
3)
4)
5)
6)
7)
8)