Answer:
x = 8
Step-by-step explanation:
Step 1: Write equation
2(x + 5) = 26
Step 2: Solve for <em>x</em>
<u>Distribute 2:</u> 2x + 10 = 26
<u>Subtract 10 on both sides:</u> 2x = 16
<u>Divide both sides by 2:</u> x = 8
First you find the zeros/x-intercepts using the factors already given in the inequality.
Therefore we make our solution using the interval notation.
In a division problem, ...
... dividend / divisor = quotient
Multiplying both sides of this equation by "divisor", we get ...
... dividend = quotient × divisor . . . . . . . . the desired relationship
The for dividend = 1/8, divisor = 6, and quotient = 1/48, this becomes ...
... 1/8 = 1/48 × 6
... 1/8 = 6/48 = 1/8 . . . . . the given values are consistent
Answer:
29.99x +5 =124.96 ; x = 4
Step-by-step explanation:
X is how many days. She rented the car for 4 days.
Answer:
18.0167≤x≤21.9833
Step-by-step explanation:
Given the following
sample size n = 10
standard deviation s = 3.2
Sample mean = 20
z-score at 95% = 1.96
Confidence Interval = x ± z×s/√n
Confidence Interval = 20 ± 1.96×3.2/√10
Confidence Interval = 20 ± (1.96×3.2/3.16)
Confidence Interval = 20 ± (1.96×1.0119)
Confidence Interval = 20 ± 1.9833
CI = {20-1.9833, 20+1.9833}
CI = {18.0167, 21.9833}
Hence the required confidence interval is 18.0167≤x≤21.9833
