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3 years ago

Nine times the input minus seven is equal to the output.Which of the following equations describe this function?

1 answer:

8 0

Consider the function y = f (x), the element 'x' is the input of the function, and 'y' is the value of the function or the output.

Now, we have to determine the equation for " Nine times the input minus seven is equal to the output"

Since, the input of the function refers to the variable 'x' and output of the function refers to the variable 'y'.

The required equation is:

$( 9 \times x)-7 = y$

So, $9x-7 = y$

Therefore, 9x-7=y is the required equation.

Therefore, Option C is the correct answer.

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Simplify (5 + 1)2 - (11 + 32) + 4.

4vir4ik [10]

Answer:

Step-by-step explanation:

The trick here is to know PEMDAS.

PEMDAS stands for: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

This is the order in which you should simplify a problem.

Parentheses:

(5 + 1)^2 - (11 + 32) + 4

(6)^2 - (43) + 4

Exponents:

(6)^2 - (43) + 4

36 - 34 + 4

We have no multiplication or division, so we can skip those steps.

Addition:

36 - 34 + 4

40 - 34

Subtraction:

40 - 34

So 6 is our answer.

5 0

3 years ago

Read 2 more answers

The bakery used 29 pounds of butter on Tuesday, 53 pounds of butter on

Burka [1]

Answer:

203 Ibs of butter

Step-by-step explanation:

5 0

3 years ago

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Write the inverse of the function: f (x) = 2x+3

34kurt

Answer:

$y = \frac{x - 3}{2}$

Step-by-step explanation:

To find the inverse of a function, simply 'switch' the x and y's and solve for y. $y = 2x + 3$ becomes $x = 2y + 3$ . Now, solving for y, we get $y = \frac{x - 3}{2}$ .

hope this helped! :)

6 0

2 years ago

Quantos que é -2 ao quadrado

Olegator [25]

No estoy segura e -2 ao quadrado esa es toda la pregunta

5 0

3 years ago

It is advertised that the average braking distance for a small car traveling at 65 miles per hour equals 122 feet. A transportat

madreJ [45]

Complete Question

The complete question is shown on the first uploaded image

Answer:

the null hypothesis is $H_o : \mu = 122$

the alternative hypothesis is $H_a : \mu \ne 122$

The test statistics is $t = - 1.761$

The p-value is $p = P(Z < t ) = 0.039119$

$p \ge 0.01$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 122$

The sample size is n= 38

The sample mean is $\= x = 116 \ feet$

The standard deviation is $\sigma = 21$

Generally the null hypothesis is $H_o : \mu = 122$

the alternative hypothesis is $H_a : \mu \ne 122$

Generally the test statistics is mathematically evaluated as

$t = \frac { \= x - \mu }{\frac{ \sigma }{ \sqrt{n} } }$

substituting values

$t = \frac { 116 - 122 }{\frac{ 21 }{ \sqrt{ 38} } }$

$t = - 1.761$

The p-value is mathematically represented as

$p = P(Z < t )$

From the z- table

$p = P(Z < t ) = 0.039119$

$p \ge 0.01$

4 0

3 years ago