I don’t understand what I’m suppose to do. Can someone please help?

Step-by-step explanation:

my guess it's 4

(x+7) (x-3)

The value of k for which f(x + 3) = x^2+kx-21 for the considered function f(x) is found to be k = 4

You can simply replace those variables with the value you know of them and then operate on those values to get a final value. This is the result of that expression at those values of the considered variables.

It is given that:

[tex]f(x) = x^2 -2x - 24[/tex]

and [tex]f(x+3) = x^2 + kx - 21[/tex]

Putting x = x+3 in the definition of f(x), we get:

[tex]f(x+3) = (x+3)^2 -2(x+3) -24\\\\f(x+3) = x^2 + 6x + 9 -2x -6 - 24\\\\f(x+3) = x^2 + 4x -21[/tex]

Comparing it with [tex]f(x+3) = x^2 + kx - 21[/tex], we see that k is having value as 4 for the considered function.

Thus, the value of k for which f(x + 3) = x^2+kx-21 for the considered function f(x) is found to be k = 4

Learn more about evaluating a function at a value here:

https://brainly.com/question/2753269

Answer:

It's option A

change the answer

Answer:

its a so yeah

Answer:

C. x = 5

Step-by-step explanation:

[tex]2x - 1 = 9[/tex]

[tex]2x = 9 + 1[/tex]

[tex]2x = 10[/tex]

[tex]x = 5[/tex]

Given,

Length = x+7

Breadth = x+5

We know that,

Area of rectangle = length × breadth

So, area of the given rectangle

= (x+7)(x+5)

= x² + 5x + 7x + (7×5)

= x² + 12x + 35

Answer:

K=3

Step-by-step explanation:

Substitute the X with 7.

-6x7+18=k(7-15)

Distribute and combine

-42+18= = -8k

Combine like terms

-8k= -24

K= 3

Answer:

The answer is k=3

Answer:

The answer is "[tex]-13.5 \ / minute \\\\[/tex]"

Step-by-step explanation:

The average rate to the changes of pretzels form [tex]t= 1 \ minutes[/tex] to [tex]t=1.5 \ minutes[/tex] will be:

[tex]=\frac{P(1.5)-p(1)}{1.5-1}\\\\=\frac{(20+(1.5)^2- 8 \cos \pi (1.5))-(20+1^2 -8 \cos \pi)}{0.5}\\\\=\frac{22.25-29}{0.5}\\\\=\frac{-675}{50}\\\\=-13.5 \ / minute \\\\[/tex]

Answer:

Regular price of 1 pizza = $15 {Assuming discount coupon = $22.5}

Step-by-step explanation:

Let regular non discounted price of 7 pizzas be x

x - 22.5 = 82.5

x = 82.5 + 22.5

x = 105 (Regular Non discounted price of 7 pizzas)

Regular Price of 7 pizzas = 105

Regular price of 1 pizza = 105 / 7 = 15

Answer:

-10<1

which means that -10 is less than 1

Answer:

A

Step-by-step explanation:

-10 is smaller than 1 because all the negative numbers are less than 0 and all other positive numbers

Answer:

Mean = $54.67

Step-by-step explanation:

How to Find the Mean

Add up all data values to get the sum

Count the number of values in your data set

Divide the sum by the count

The mean is the same as the average value in a data set.

Mean Formula

The mean x of a data set is the sum of all the data divided by the count n.

mean=x¯¯¯=∑ni=1xin

Solve

Add up all data values to get the sum

$29 + $58 + $15 + $129 + $75 + $22 = $328

Count the number of values in your data set

$29 and $58 and $15 and $129 and $75 and $22 = 6

Divide the sum by the count

328 ÷ 6 = 54.6666666667

Nearest tenth = 54.67

Therefore, the Mean = $54.67

Step-by-step explanation:

Hi,

63 = 5x + 18 represents this situation.

63 = 5x + 18

45 = 5x

9 = x

So, the possible number of mins are 1, 2, 3, 4, 5, 6, 7, 8, and 9.

You can also write this as x ≤ 9

I hope this helps :)

Answer: A

Step-by-step explanation:

A) 50/ 45 = 1.111....

B) 65/60 = 1.08333...

C) 99/90 = 1.1

D) 90/120 = .75

Answer:

A

Step-by-step explanation:

Divide each amount by the number of minutes to find the rate per minute. Then multiply by 60 to find the hourly rate. Then compare the hourly rates.

A

$50 / 45 min * 60 = $66.66/hour

B

$65 / 1 hour = $65/hour

C

$99 / 90 min * 60 = $66/hour

D

$90 / 2 hours = $45/hour

Answer: A

Answer:

35 members

Step-by-step explanation:

In a tennis club the ratio number of junior members : number of senior members is 7 : 10

From the above ratio

Number of junior member = 7

Number of senior members = 10

There are 18 more senior members than junior members.

S = 18 + j

10 + 18 = 28 senior members

Hence,

Total number of members = 28 senior members + 7 junior members

= 35 members

Answer:

40/9

$189

Step-by-step explanation:

1 2/3 / 3/8 =

4 4/9 = 40/9

6.85 x 315 - 6.25 x 315 = $189

Hope that helps!

Answer:

ik gonna let u solve this question but I explained what u need to do to solve it

Answer:

D. 1 liter

Step-by-step explanation:

1000 milliliters = 1 liter

Player 1: 1000 ml or 1 liter

Player 2: 500 ml or .5 liter

Player 3: 500 ml or .5 liter

Player 4: 2000 ml or 2 liter

Add: 1 + .5 +.5 +2 = 4

Subtract: 5 - 4 = 1

Answer: You have 1 liter left  

Answer: 0.0188

Step-by-step explanation:

Using the Central Limit Theorem, it is found that the standard deviation of the sampling  distribution of p is 0.0144.

In this problem:

Then, the standard deviation is:

[tex]s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.7(0.3)}{1012}} = 0.0144[/tex]

The standard deviation of the sampling  distribution of p is 0.0144.

To learn more about the Central Limit Theorem, you can take a look at https://brainly.com/question/16695444

Answer:

-13 feet

Step-by-step explanation:

Answer:

-13 feet

Step-by-step explanation:

We Start With -8 and we go 5 feet deeper so -8-5 is -13

Answer:

192

Step-by-step explanation:

you take 12 and multiple it by 16:

R12×16=R192

Answer:

-10 minor -7 minor -1 minor +3

Step-by-step explanation:

first one: (14+6)/(-4+2)= -10

second one: (8+4)/(-9-3)=-1

third one: (3+4)/(3-4)= -7

last one: =+3

Answer:

its 56

Step-by-step explanation:

Answer:

C.) 12.4

Step-by-step explanation:

The square root of 155 needs to be found.

It's about 12.4498996.

Thinking that your options are supposed to be decimals, the closest rounded answer would be C.

Answer:

As the calculated z does not fall in the critical region we fail to reject H0 and conclude that there is sufficient evidence that the average past-due amount for customers who have been called previously about their bills is now no larger than $23.

Step-by-step explanation:

As the standard deviation for the past due amounts is 63

The sample size n= 67

1) Formulate the null and alternate hypothesis

H0: u ≤ 23 against the claim Ha: u > 23

2)  The test statistics is

Z= x- u / σ/ √n

z= 20- 23/ 63/ √67

z= 0.00581

z= 0.006

3) The significance level ∝= 0.1

4) The critical value for ∝= 0.1 is Z > ±2.33

5) As the calculated z does not fall in the critical region we fail to reject H0 and conclude that there is sufficient evidence that the average past-due amount for customers who have been called previously about their bills is now no larger than $23.

Answer:

131° 131°=5 5 is the measure for 5 5

Answer: 181

Step-by-step explanation: i got it right on imagine math and the person above me is correct

ur pretty and perfect! Have a great day!

Answer:

(8, 15 and 17)

Step-by-step explanation:

[tex]\sqrt{10^{2} +28^{2} } \neq 29[/tex]

[tex]\sqrt{6^{2} +8^{2} } \neq 13[/tex]

[tex]\sqrt{7^{2} +12^{2} } \neq 14[/tex]

[tex]\sqrt{8^{2} +15^{2} } =17[/tex]

Answer: 900π

Step-by-step explanation: To calculate the area of a circle, we do πr^2, where r is the radius. The radius is 30, so the answer is 900π.

Hope this helps!

Answer:

x1 = -4

x2 = 3

Step-by-step explanation:

[tex]x^{2} + x = 12\\x^{2} +x-12=0\\x^{2} +4x-3x-12=0\\x*(x+4)-3(x+4)=0\\(x+4)*(x-3)=0\\x+4= 0 \\x-3=0\\x=-4 \\x=3\\x1=-4 \\x2=3[/tex]

Step-by-step explanation:

=> x² + x = 12

=> x² + x -12 = 0

=> x² + 4x - 3x -12 = 0

=> x ( x + 4)-3(x + 4) = 0

=> ( x + 4)(x-3)=0

=> x = 3 , -4

the answer is between 7 and 8

Answer:

14.37 is your answer for his meal, hope this helped. <3

Step-by-step explanation:

You have 13.77 then you add 7% then round it  up.