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3 years ago

Which statement explains why Chris will incorrectly determine the cost of taking the taxi cab to the airport.

Mathematics

2 answers:

rewona [7]3 years ago

7 0

B and D? One of them is correct and I can’t tell you if it’s correct.

Karo-lina-s [1.5K]3 years ago

4 0

Answer:

Best Chance B Cause I think if it didn't say <em>Incorrectly</em> then the correct would be D.

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Find the difference quotient and simplify your answer. <br>f(x) = x^3 + 3x, (f(x + h) - f(x))/h

kiruha [24]

F x (x + h) - fx/h
fx +fh - fx /h
fh/h
f
So f is the answer

5 0

3 years ago

Jose has $20 more than Sarah. Their combined mobey totals $90. Write and solve an algebric model to determine the amount of mone

scoray [572]

Let S= the amount of money Sarah has.

Let J= the amount of money Jose has

J= S+20

J+S=90

But we also know that J can equal S+20

So,

S+20+S=90

2S+20=90

2S=70

S=35

So Sarah has $35, and Jose has $35+$20, so he has 55$

6 0

3 years ago

Read 2 more answers

-x = 2 -3x + 6<br> Find the value of x in the equation

lbvjy [14]

4 = X

Added the -3x over

3 0

4 years ago

Read 2 more answers

Given that WXYZ is a rhombus, find the value of x. A. 15 B. 20 C. 30 D. 45

Yanka [14]

In this problem, we are given the equations of the two sides of a rhombus.

Equation 1 is 4 x – 10

Equation 2 is 2 x + 20

Since the given shape is a rhombus, therefore the two sides have equal sides. Hence, we can simply equate equation 1 and equation 2:

4 x – 10 = 2 x + 20

2 x = 30

x = 15

Therefore the answer is:

A. 15

3 0

3 years ago

Read 2 more answers

A Gallup Poll in July 2015 found that 26% of the 675 coffee drinkers in the sample said they were addicted to coffee. Gallup ann

emmasim [6.3K]

Answer:

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

A confidence interval has two bounds, the lower and the upper

Lower bound:

$\pi - M$

Upper bound:

$\pi + M$

In this problem, we have that:

$\pi = 0.26, M = 0.05$

Lower bound:

$\pi - M = 0.26 - 0.05 = 0.21$

Upper bound:

$\pi + M = 0.26 + 0.05 = 0.31$

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee is between 21% and 31%.

4 0

3 years ago