The math department is putting together an order for new calculators. The
students are asked what model and color they prefer.

Which statement about the students' preferences is true?

Answer:

f(x) is another way of saying "y", but when x is replaced with a number, it just means that x = that number.

Since A says to find f(7), it means that in this scenario, x = 7. So, 2x - 5 is turned into 2(7) - 5, which equals 14 - 5, which equals 9.

So, f(7) = 9.

You can then apply this to the rest of the numbers you are given.

I hope this helps! :)

Answer:

-2 and -8

Step-by-step explanation:

-2 x -8 = 16

-2 + -8 = -10

Answer:

1 and -16

Step by step:

1 x -16 = -16

1 + (-16) = -15

Answer:

11.0905365064

11.1 (rounded)

Step-by-step explanation:

[tex]\sqrt{123} =11.090[/tex]

Answer:

Step-by-step explanation:

11.0905365064

Answer:

-6+3[tex]\sqrt{2}[/tex] and -6-3[tex]\sqrt{2}[/tex]

Step-by-step explanation:

xy = 18

x+y = -12

y = -12-x

substitution method:

x(-12-x) = 18

-12x - x² - 18 = 0

-x² - 12x - 18 = 0

-(x² + 12x + 18) = 0

used quadratic formula:

(-12±√144 - 4(18)) ÷ 2

(-12 ± [tex]\sqrt{72}[/tex]) ÷ 2

(-12 ± 6[tex]\sqrt{2}[/tex]) ÷ 2

= -6 ± 3[tex]\sqrt{2}[/tex]

Answer:

Slope=0

Step-by-step explanation:

Point=Y

Answer: C. J=5

Step-by-step explanation: Hope this help :D

Answer:

1/5

Step-by-step explanation:

there is 3 e's out of a 15 letter word

reduces down to 1/5

Answer:

sample mean

Step-by-step explanation:

Using the normal distribution and the central limit theorem, considering that this is a sample proportion, as we are dealing with percentages, it is found that there is a 0.1562 = 15.62% probability of getting less than 50% Democrats in a random sample of size 100.

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

In this problem:

The mean and the standard deviation of the sampling distribution of sample proportions are given by:

[tex]\mu = p = 0.55[/tex]

[tex]s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.55(0.45)}{100}} = 0.04975[/tex]

The probability of getting less than 50% Democrats in a random sample of size 100 is the p-value of Z when X = 0.5, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.5 - 0.55}{0.04975}[/tex]

[tex]Z = -1.01[/tex]

[tex]Z = -1.01[/tex] has a p-value of 0.1562.

0.1562 = 15.62% probability of getting less than 50% Democrats in a random sample of size 100.

To learn more about the normal distribution and the central limit theorem, you can take a look at https://brainly.com/question/24663213

Answer:

The average rate of change of f(x) is greater than ​g(x)​ on the interval [0,3]

Step-by-step explanation:

:)) Hope it helps!!

Answer:

2) A = 12 in.²

5) A = 737 in.²

6) A = 48 in.²

9) A = 2400 in.²

Step-by-step explanation:

2)

Trapezoid

base1 = 4 in.

base2 = 2 in.

height = 4 in.

A = (b1 + b2)h/2 = (4 + 2)(4)/2 = 12

A = 12 in.²

5)

rectangle + semicircle

A = LW + ½πr²

A = 29 * 20 + ½(3.14)(10²)

A = 580 + 157

A = 737 in.²

6)

A = 8 * 8 - 4 * 4

A = 48 in.²

9)

A = 50 * 60 - 20 * 30

A = 2400 in.²

Answer:

10x=y.

Step-by-step explanation:

10 represents the amount he earns an hour. X represents the number of hours so 10x. 10 times the amount of hours equals y (total amount of money)

Answer:

y = 10x

Step-by-step explanation:

The total earnings, y, is equal to the hourly rate, 10, times x, the hours worked.

y equals 10 times x, or, in equation form, y = 10x.

I hope this helps ^^

Answer:

median is 8 it's always the middle, play the elimination game

Answer:

493,864$

Step-by-step explanation:

17,638x28$

do you need a pic (to show my work) or are you talking about your pic

Answer:

x = a + b - a/ 2

y = - b - a/ 2

Step-by-step explanation:

Answer:

70% increase

Step-by-step explanation:

Answer:

[tex]\frac{5}{21}[/tex]

Step-by-step explanation:

1)  [tex]\frac{3}{7} *\frac{5}{9}[/tex]

Reduce the numbers with the greatest common factor : 3

2)  [tex]\frac{1}{7} *\frac{5}{3}[/tex]

Multiply the fractions.

3)  [tex]\frac{5}{21}[/tex]

Answer:

No

Step-by-step explanation:

First subtract 16 from both sides

13 is not a solution to the original inequality.

Answer:

.

Step-by-step explanation:

Answer:

hi, I need the weights provided in the question to answer this question

Answer:

Hey I did a few for you :)

Step-by-step explanation:

Hope this helps!

Have a nice day<3

Answer: What expression can Melanie write to figure out how much her ... Mauricio plans on retiring in 20 years, and he wants to double his money by that time. He has contacted various banks, looking for a CD that compounds interest monthly, and to calculate what annual interest rate he needs, he is using the rule of 72.

Step-by-step explanation: I did what I could man

Answer:

option d is the correct answer

Answer:

we have

C=(2,-1)

B=(-2,3)

since

BC is hypotenuse

length of BC=√[(-2-2)²+(3+1)²]=√32=4√2 units is your answer

Answer:

The presence of many unpaired electrons in the valence shell of an atom enables it to form multiple bonds with other atoms. The paired electrons present in the valence shell do not take participate in the formation of chemical bonds as per the valence bond theory.

Answer:

the answer is 4

Step-by-step explanation:

8x-1=5x+11

3x=12

x=4

Answer:

6%

Step-by-step explanation:

30/ 500  =   x/100

30*100= 3,000

3,000 /  500 = 6

it would be 6% hope this helps