use a ti 84 or something
y hat= 5.425x + 76.406
r= 0.78598
the value of r shows a linear strong positive relationship between hours studied and test score
x=4 yhat= 98.106
Answer: The system consists of parallel lines
Step-by-step explanation:
Given system of lines :

Substitute
in
, we get
, which is not true.
That means , system has no solution.
i.e. they are representing parallel lines. [Parallel lines do not intersect and hence they do not have solution.]
Answer:
41/20
Step-by-step explanation:
Simplify the following:
4/5 + 1/2 + 3/4
Hint: | Put the fractions in 4/5 + 1/2 + 3/4 over a common denominator.
Put 4/5 + 1/2 + 3/4 over the common denominator 20. 4/5 + 1/2 + 3/4 = (4×4)/20 + 10/20 + (5×3)/20:
(4×4)/20 + 10/20 + (5×3)/20
Hint: | Multiply 4 and 4 together.
4×4 = 16:
16/20 + 10/20 + (5×3)/20
Hint: | Multiply 5 and 3 together.
5×3 = 15:
16/20 + 10/20 + 15/20
Hint: | Add the fractions over a common denominator to a single fraction.
16/20 + 10/20 + 15/20 = (16 + 10 + 15)/20:
(16 + 10 + 15)/20
Hint: | Evaluate 16 + 10 + 15 using long addition.
| 1 |
| 1 | 6
| 1 | 5
+ | 1 | 0
| 4 | 1:
Answer: 41/20
Answer:
maybe 3
2
Step-by-step explanation: