Answer:
x> 17/3, x < 37/4
Step-by-step explanation:
3x−5>12
Step 1: Add 5 to both sides.
3x−5+5>12+5
3x>17
Step 2: Divide both sides by 3.
4x+3<40
Step 1: Subtract 3 from both sides.
4x+3−3<40−3
4x<37
Step 2: Divide both sides by 4.
Answer:
8N - 4 border tiles.
Step-by-step explanation:
There are 4 border tiles in each corner and between the tiles there are N-2 tiles along the 4 sides.
So the number of border tiles
= 4+ 4(N - 2)
= 4 + 4N - 8
= 8N - 4.
Answer:
Yes, we reject the auto maker's claim.
Step-by-step explanation:
H0 : μ ≥ 20
H1 : μ < 20
Sample mean, xbar = 18 ;
Sample size, n = 36
Standard deviation, s = 5
At α = 0.01
The test statistic :
(xbar - μ) ÷ s /sqrt(n)
(18 - 20) ÷ 5/sqrt(36)
-2 /0.8333333
= - 2.4
Pvalue from test statistic : Pvalue = 0.00819
Pvalue < α
0.00819 < 0.01
Hence, we reject the Null
Solute = what is dissolved
solvent = that which dissolves or can dissolve
You take it from here.