Need help please please

Step-by-step explanation:

The perimeter of a rectangle is the sum of all the sides and the width sides are equal, as well as the two length sides.

For this problem that would mean that two sides are equal to BC and two sides are equal to AB.

Since the perimeter (P)  is equal to 60 , we can write:

P = 2 * BC + 2 * AB

We can substitute the expressions we are given for AB and BC and 60 for the perimeter:

60 =  2 (2z + 3 ) + 2 (3z + 2)

Using the distributive property and combining like terms, we can find the value of the variable , z:

60 = 4z + 6 + 6z + 4

60 = 10z + 10

Subtract 10 from both sides of the equation:

60 - 10 = 10z + 10 -110

50 = 10z

Divide both sides of the equation by 10:

50/10 = 10z/10

5 = z

Since z = 5, then BC is 2z + 3 or 2*5 + 3

BC = 13

Tell me if that's correct!

Answer:

1. 300

2. 200

Hope this helps!

Answer:

30% of 300 = 90

20% of 200 = 40

Answer:

3

Step-by-step explanation:

v=1*3

Answer:

3

Step-by-step explanation:

Multiply each side by 3 and you get 3

v=1*3=3

v=3

Answer:

It represents 5 miles in 5 minutes

Step-by-step explanation:

Because, if the bycicleist travels 1 mile in 1 minute, in 5 minutes he traveled 5 miles

Answer:

5.93

Step-by-step explanation:

[tex]Average= \frac{9+5/9+7+2/9+2+7/36+4+3/4}{4} = 5.930555[/tex] or [tex]\frac{427}{72}[/tex]

Answer:

Step-by-step explanation:

k+43=118

k=118-43

k=75

Answer:

Your answer is: k= 75

Step-by-step explanation:

Hope this helped : )

Answer:

-46

Step-by-step explanation:

5 (x - 2) - 14x.   x=4

5 (4 - 2) - 14(4)  (distribute)

20 - 10 - 14(4)   (multiply)

20 - 10 - 56    (subtract and solve.)

10 - 56 = -46 - solution

hope this helps (:

Answer:

The critical t-value for such a test given an alpha level of 0.05 is 2.26

Step-by-step explanation:

Null hypothesis : [tex]H_0:\mu = 7.5[/tex]

Alternate hypothesis :[tex]H_a:\mu \neq 7.5[/tex]

Population mean = [tex]\mu = 7.5[/tex]

Data : 10, 9, 6, 11, 13, 14, 9, 9, 9, and 10

Mean = [tex]\bar{x}=\frac{\text{Sum of all observations}}{\text{no. of observations}}[/tex]

Mean =[tex]\frac{10+9+6+11+13+14+9+9+ 9+ 10}{10}[/tex]

Mean =10

Standard deviation : [tex]\sqrt{\frac{\sum(x-\bar{x})^2}{n}}[/tex]

Standard deviation :[tex]\sqrt{\frac{(10-10)^2+(9-10)^2+(6-10)^2+(11-10)^2+(13-10)^2+(14-10)^2+(9-10)^2+(9-10)^2+(9-10)^2+(10-10)^2}{10}}[/tex]

Standard deviation s :2.144

[tex]t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}t = \frac{10-7.5}{\frac{2.144}{\sqrt{10}}}t=3.687[/tex]

Df = n-1 = 10-1 = 9

T critical =[tex]t_{(df,\alpha)}=t_(9,0.05)=2.26[/tex]

T calculated > T critical

So, We failed to accept null hypothesis

Hence the critical t-value for such a test given an alpha level of 0.05 is 2.26

Answer:

697.6

Delta math

Answer:

4

Step-by-step explanation:

Answer:

d=4

Step-by-step explanation:

Flip the equation.

−d+15=11

Subtract 15 from both sides.

−d+15−15=11−15

−d=−4

Divide both sides by -1.

−d

−1

=

−4

−1

d=4

Answer:

41

Step-by-step explanation:

255-9=246

246/6=41 students

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following data:

X: 1 1 2 3 0 1 3 2 0 5 3 3 1 3 2 4 7 0 2 3 0

4 2 1 3 1 1 3 4 1 2 3 2 2 8 4 5 1 3 1 5 0

2 3 2 1 0 6 4 2 1 6 0 3 3 3 7 1 2 2

Value __frequency (F)__Relative frequency

0________ 7 ___________ 7/60 = 0.1167

1 ________ 13 __________ 13/60 = 0.2167

2 _______ 13 ___________ 13/60 = 0.2167

3 _______ 14 ___________ 14/60 = 0.2333

4 _______ 5 ____________ 5/60 = 0.0833

5 _______ 3 ____________ 3/60 = 0.0500

6 _______ 2 ____________ 2/60 = 0.0333

7 _______ 2 ____________ 2/60 = 0.0333

8 _______ 1 _____________ 1/60 = 0.0167

B.) b. What proportion of batches in the sample have at most four nonconforming transducers?

X = 0 + x = 1 + x = 2 + x = 3

0.1167 + 0.2167 + 0.2167 + 0.2333

= 0.7834

Answer:

18049/14= 1289 with a remainder of 3

Answer:

3

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

mark me as brainliest?

Answer:

D. 3

Step-by-step explanation:

if you were trying to find the value of x, heres how i got the answer:

2/3x - 4 = -2

    - add 4 to both sides

2/3x = 2

     - divide both sides by 2/3

x = 3

Answer:

there is no slope

Step-by-step explanation:

cause both x variables are the same

Answer:

Well hm It would help a lot if you told us where town A is on the map or showed us a picture. Could you do that?

Step-by-step explanation:

Answer:

35 weeks

Step-by-step explanation:

12000=8500+100x

8500 from 12000 is 3500.

3500/100 is 35. 35 is x.

to check answer:

(35*100)+8500=

12000

Answer: x => -6

Step-by-step explanation: All you gotta do is alternate the form

The solution for the given inequality is x ≥ -6.

A declaration of an order connection between two numbers or algebraic expressions, such as greater than, equal to, less than, less than, or equal to. Either questions or theorems can be used to express inequality problems, and both can be solved using methods similar to those used to solve equations. The triangle inequality, for instance, stipulates that the length of the remaining side of a triangle is more than or equal to the sum of the lengths of any two of its sides. Many of these inequalities, like the Cauchy-Schwarz inequality, are used by mathematical analysis to prove some of its most significant theorems.

Given an equation -3−4x ≤ 21.

Solve for x

-3−4x ≤ 21

add three to both sides

-4x ≤ 24

divide by -4 into both sides (signs will be changed)

x  ≥ -6

Therefore solution for the given equation in the form of inequalities is

x ≥ -6.

Learn more about inequalities here:

https://brainly.com/question/28823603

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Answer:

None of the options are correct, but I got g(x)=1/2x+2.

Step-by-step explanation:

You start with the equation. You first need to change f(x) to y, and switch the x and y values. After this, your equation would be x=2y-4. Then, you need to icolate the y value, and to do that you first cancel out the four by adding it to both sides, and now your equation should be x+4=2y. The second step in icolating the y value is dividing everything in the equation by two. Now that the y is icolated, you equation should be y=1/2x+2. You then change the y to be g(x), and that's how I got my answer, g(x)=1/2x+2. You should ask your teacher about this, becuase from my calculations, none of the given responses would be correct. Sorry if that doesn't help you at all but yeah

Answer:

D, g(x) = 1/2 x + 2

Step-by-step explanation:

The second answer IS ONE TO ONE

Answer:

-1

Step-by-step explanation:

The line travels through -1, which is the y intercept.

Answer:16

Step-by-step explanation:

Answer:

that depends on the number of students

Answer:

how many kids were involved

Answer:

5/21

You flip the number 3 which will be "1/3", then you multiply that by 5/7 and you get 5/21

Given expression;

             We are to divide 5/7 by 3;

  Now;

                          [tex]\frac{\frac{5}{7} }{3}[/tex]  

        So;

                    [tex]\frac{5}{7}[/tex]  divided by 3

                 = [tex]\frac{5}{7} x \frac{1}{3}[/tex]

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

The solution is     [tex]\frac{5}{21}[/tex]

Answer:

what are you in 5th? cause I might have the answer

An equation shows the amount of juice, in pints, in each glass is x =4/5.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Sara has 4 pints of juice she wants to pour a equal amount of juice into 5 cups using all the juice.

Quantity of juice poured into cups be x.

Now, x= 4/5

Therefore, the equation is x= 4/5.

To learn more about an equation visit:

https://brainly.com/question/14686792.

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Answer:

5. 4

6. ?

7. c- 8

8. b-13

9. ?

10. d. 12

Step-by-step explanation:

i hope this helps, sorry for the question marks :)

9514 1404 393

Answer:

  $67,516

Step-by-step explanation:

"Depreciates" means the value is getting smaller. The function that describes the situation is a decay function:

  y= a(1-r)^x

Here, a=150000, r = 0.07, and x=11. The value is predicted to be ...

  y = 150000(1 -0.07)^11 = 150000(0.93^11) = 67,515.53

The house is worth about $67,516 in 2013.

Answer:

60 eggs from 1 chicken

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

x=pens

.85x=8.15

.85x/.85= 8.15/.85

x=9.58

so 9 whole pens can be bought

Answer:

The y-intercept of the equation is 100 and represents the initial studio-use fee.

Step-by-step explanation:

In this equation, our t variable (time) is the equivalent of the x-variable on a graph. This is because it is the variable that we 'change' to see its impact on y. We see how the amount of hours affects the price. So our P variable (price) is the equivalent of y on a graph. The y-intercept is where the line crosses the y-axis on a graph. At this point, x=0.

Since P is our y, and t is our x, to find the y-intercept, we simply need to make t = 0.

P = 50(0) + 100

P = 100

Therefore the y-intercept is 100.

In this context, t represents time, so even though the studio has been used for 0 hours, the price is still 100. This is because the 100 represents the initial studio-use fee, and using it for certain amounts of time adds onto the initial fee of $100. The hourly fee is represented by 50t so it costs $50 more for each hour of use.

Hope this helped!

Answer:

Answer is D.

Step-by-step explanation:

Which is not true?

So, lets assess the answers given to the question.

A. It is the equation of a horizontal line.

Yes, it is. Since there is only one y - value which is y = -4, we can confirm this is the y intercept, so therefore the x value is zero. But it's not the answer we're looking for.

B. It's slope is zero, yes the slope is zero. It only lists the y-intercept which confirms that the slope is 0.

C. Yes, I mean i can't really explain how. Just use desmos calculator, the graph is exactly perpendicular.

D. The line actually does cross the x-axis, -4 is the y intercept and the x value is 0, and zero is still a point. So D is the one which isn't correct making it the correct answer.