Answer:
Step-by-step explanation:
Last week, burton paid $36.80 for 11 1/2 gallons of gas. Converting 11 1/2 gallons of gas to decimal, it becomes 11.5. The rate at which Burton bought one gallon of gas last week would be
36.80/11.5 = $3.2
The cost per gallon of gas increased by 5% between last week and this week. The amount by which it increased would be
5/100 × 3.2 = 0.05 × 3.2 = $0.16
The cost of one gallon of gas for this week would be
3.2 + 0.16 = $3.36
She bought 9 1/4 gallons of gas this week. Converting 9 1/4 gallons of gas to decimal, it becomes 9.25 gallons of gas. The amount that she paid for gas this week would be
9.25 × 3.36 = $31.08
the answer is 2x2+12z-5 (its also in the picture)
Answer:
<h2>33</h2>
Step-by-step explanation:
Given the average low temperature by month in Nashville is represented by the function f(x)=-1.4x² + 19x +1.7, where x is the month, the average rate of change is expressed as d[f(x)]/dx = 2(1.4x) + 19
d[f(x)]/dx = 2.8x + 19
Since the number of months between March and August is 5 months and x is in months, hence we will substitute x = 5 into the resulting function to get the average rate of change from March to August as shown;
d[f(x)]/dx at x = 5
= 2.8(5)+ 19
= 14 + 19
= 33
<em>Hence the average rate of change from March to August is 33</em>
CF is a radius = 7.5 units
To find GC we will use the Pythagorean theorem.GC² = 10² + 7.5²
GC² = 100 + 56.25GC² = 156.25GC = √ 156.25GC = 12.5
GF = 12.5 + 7.5 = 20
Answer: 20 units
Answer:
We accept the null hypothesis.
Step-by-step explanation:
We are given the following in the question:
Sample mean, 
= 28.8 miles per gallon
Sample size, n = 120
Alpha, α = 0.01
Sample standard deviation, σ = 6.89 miles per gallon
First, we design the null and the alternate hypothesis
We use Two-tailed t test to perform this hypothesis.
Formula:
Putting all the values, we have
Now, 
Since,
We fail to reject the null hypothesis and accept it.
We accept the null hypothesis and the population mean MPG of Toyota Highlander Hybrid vehicles is equal to 28 miles per gallon.
