Raquel and Van live in two different cities. As part of a project, they each record the lowest prices for a gallon of gas at gas stations around their cities on the same day. Raquel’s data reflect a mean price of $3.42 with a standard deviation of 0.07. Van’s data reflect a mean price of $3.78 with a standard deviation of 0.23.Which statement is true about their gas-price data?
A- Raquel’s data are most likely closer to $3.42 than Van’s data are to $3.78.
B- Van’s data are most likely closer to $3.42 than Raquel’s data are to $3.78.
C- Raquel’s data are most likely closer to $3.78 than Van’s data are to $3.42.
D- Van’s data are most likely closer to $3.78 than Raquel’s data are to $3.42.

Answers

Answer 1

Answer: the standard deviation shows the dispersion (how close) of the data. Therefore the correct statement is A:
A- Raquel’s data are most likely closer to $3.42 than Van’s data are to $3.78.

Answer 2

Answer:

A is the answer my folks.

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Which of the following is a plural subjective pronoun?A. I
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C. we
D. them

Answers

D is the correct answer

Answer:

Step-by-step explanation:

The function f(x) = −(x + 5)(x + 1) is shown.What is the range of the function?all real numbers less than or equal to 4
all real numbers less than or equal to −3
all real numbers greater than or equal to 4
all real numbers greater than or equal to −3

Answers

we have

$f(x)=-(x+5)(x+1)$

we know that

The equation of a vertical parabola into vertex form is equal to

$y=a(x-h)^(2)+k$

where

(h,k) is the vertex of the parabola

if $a>0$ ----> the parabola open upward (vertex is a minimum)

if $a<0$ ----> the parabola open downward (vertex is a maximum)

In this problem convert the quadratic equation into vertex form

$f(x)=-(x+5)(x+1)\nf(x)=-(x^(2) +x+5x+5)\nf(x)=-( x^(2) +6x+5)$

$f(x)=-x^(2)-6x-5$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$f(x)+5=-(x^(2)+6x)$

Complete the square. Remember to balance the equation by adding the same constants to each side

$f(x)+5-9=-(x^(2)+6x+9)$

$f(x)-4=-(x^(2)+6x+9)$

Rewrite as perfect squares

$f(x)-4=-(x+3)^(2)$

$f(x)=-(x+3)^(2)+4$

This is a vertical parabola open down (vertex is a maximum)

the vertex is the point $(-3,4)$

The range is the interval--------> (-∞,4]

$y\leq 4$

All real numbers less than or equal to $4$

therefore

the answer is the option

All real numbers less than or equal to $4$

The function f(x) = −(x + 5)(x + 1) is shown.What is the range of the function?

all real numbers less than or equal to 4

If you run 6. Miles an hour how long will it take to do 18 miles help quick pls

Answers

18miles/6mph = 3hrs
3 hours

CORRECT ANSWER GETS BRAINLIEST AND 5 STARS

Answers

Answer:

A) 12 to 27

Step-by-step explanation:

Ratio of girls: 12

Total students: 27

Answer:

The answer is A

Step-by-step explanation:

You are looking for the ratio of Girls to Total students meaning (boys+girls) so you add 15+12=27 that will be your total students and girls is 12 to the ratio is 12 to 27

Can you please help me and quick

Answers

Answer:

Step-by-step explanation:

anything to 0th power is 1

Answer:

Step-by-step explanation:

Yasmin bought several items at the discount store.She paid 8.75 percent sales tax , an amount of $4.59,on the total amount of her purchase.what was the total amount of her purchase before tax was added