Let x be the score of the 3rd quiz,, then the average score will be:
(83+91+x)/3, which = (174+x)/3. but this average should be greater or equal to 85 and smaller or equal to 90:
85 ≤ (174+x)/3 ≤ 90
1st multiply all terms with 3 → 255 ≤(174+x) ≤ 270
2nd subtract 173 from all terms → 255-174 ≤174-174+x ≤270-174
81 ≤ x ≤ 96
Answer:
Step-by-step explanation:
Yes
But no
But yes
=mum
Answer:
y axis over x axis is the right answer
Answer:
D : One Real Root
Step-by-step explanation:
Isolate "4x" by subtracting 7 from both sides.
So we get
4x = -7
Then we divide each side by 4 to get -7/4
x = -7/4 so there is only one real root.
Answer:
y = -
x + 1
Step-by-step explanation:
y = mx + b
Find two point on the graph (0,1) (4,-2); 1 is the y intercept
y = mx + 1
= 
y = -x + 1
