Is this a valid experimental design?

A.

B.

C.

D.

Hello! :)

[tex]\large\boxed{p = -38}[/tex]

4(2p - 8) - 6p = 20 + 4(p + 6)

Distribute the coefficients outside of the parenthesis:

4(2p) + 4(-8) - 6p = 20 + 4(p) + 4(6)

8p - 32 - 6p = 20 + 4p + 24

Combine like terms:

2p - 32 = 44 + 4p

Subtract 2p from both sides:

-32 = 44 + 2p

Subtract 44 from both sides:

-76 = 2p

Divide both sides by 2:

p = -38.

Answer p = -4

6p + 2(4 + -2p) = 3(p + 4)

6p + (4 * 2 + -2p * 2) = 3(p + 4)

6p + (8 + -4p) = 3(p + 4)

8 + 6p + -4p = 3(p + 4)

8 + 2p = 3(p + 4)

8 + 2p = 3(4 + p)

8 + 2p = (4 * 3 + p * 3)

8 + 2p = (12 + 3p)

8 + 2p = 12 + 3p

8 + 2p + -3p = 12 + 3p + -3p

8 + -1p = 12 + 3p + -3p

8 + -1p = 12 + 0

8 + -1p = 12

8 + -8 + -1p = 12  

0 + -1p = 12 + -8

-1p = 12 + -8

-1p = 4

p = -4

Answer:

1 and 3

Because if you move the decimal point for one number you also have to move it for the other.

Answer: u = 4.33

Step-by-step explanation:

-3u = -12.99

-3u / -3 = -12.99 / -3

u = 4.33

Answer:

63 pages

Step-by-step explanation:

147/x=70/100

147=x(70/100)

x = 147/(70/100)

x = 210

210-147=63

Answer:

63 pages

Step-by-step explanation:

147  100

---- * ----  =     210 and then 210-147=63

1       70

21 tens is equal to 210, and 3 tens is equal to 30.

Reason behind both the situations are the same are the place values of the digits.

According to their position in a number, each digit has a different value in mathematics, which is called place value. From the unit's starting location, these positions begin.

Ones/units, tens, hundreds, thousands, ten thousands, and so on are all ways to describe the place value of a number's digits in sequence from right to left.

Each digit in a number has a place value, which is its worth. Each digit in a number has a unique value depending on where it sits in the number. The value of a digit depends on where it falls in the number; two comparable digits in the same number may have different values.

When 210 is written in the form of place value, this will be written as 21 tens and 30 will be written as 3 tens.

Therefore, the given statement has the same values and is correct.

Learn more about place values from here:

https://brainly.com/question/1677741

#SPJ2

Answer: X = 2

Step-by-step explanation:

Answer:

Option 3: [tex](x-2)^2+(y-1)^2 = 16[/tex] is the correct answer

Step-by-step explanation:

We will find the equation of the circle with given information and then compare with the choices given.

Given

Center = (h,k) = (2,1)

And point on circle = (2,-3)

The equation of circle is given as:

[tex](x-h)^2 + (y-k)^2 = r^2[/tex]

The distance between center and point on circle is the radius. So using the distance formula:

[tex]r = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\r = \sqrt{(2-2)^2+(-3-1)^2}\\r = \sqrt{(0)^2+(-4)^2}\\r = \sqrt{0+16}\\r = \sqrt{16}\\or\\r = 4[/tex]

Putting the values in equation of circle

[tex](x-2)^2+(y-1)^2 = 4^2\\(x-2)^2+(y-1)^2 = 16[/tex]

Hence,

Option 3: [tex](x-2)^2+(y-1)^2 = 16[/tex] is the correct answer

Answer:

c on edge

i got it right

Answer:

784

Step-by-step explanation:

Answer:

The surface area of the net shown is: 88 [tex]in^2[/tex]

Step-by-step explanation:

Break up the different shapes in the net:

Let's take the big square first:

It has a side of 5in and a base of 4in.

We multiply both these values to get 20[tex]in^2[/tex]

Lets look at the small rectangular box now:

It has a side of 3in and a base of 4in.

We multiply both these values to get 12[tex]in^2[/tex]

There are two big squares so we add up their surface areas:

20[tex]in^2[/tex] + 20[tex]in^2[/tex] = 40[tex]in^2[/tex]

There are 4 small rectangular squares so we add up their surface areas:

12[tex]in^2[/tex] + 12[tex]in^2[/tex] + 12[tex]in^2[/tex] + 12[tex]in^2[/tex] = 48[tex]in^2[/tex]

Now we add up the big square and small rectangular squares values:

40[tex]in^2[/tex] + 48[tex]in^2[/tex] = 88[tex]in^2[/tex]

Therefore the answer is 88[tex]in^2[/tex]

Answer:

4%

Step-by-step explanation:

Formula for volume of a right rectangular prism is;

V = lwh

Where;

l is length

w is width

h is height

We are given l = 367; w = 24; h = 19

Thus;

Volume is;

V_full = 367 × 24 × 19

V_full = 167352 in³

We are told that Alex filled the aquarium with 6039 in³ of water.

Thus, percentage of the aquarium filled with water is;

(6039/167352) × 100% = 3.61%

Approximating to nearest percent gives; 4%

Answer:

[tex]d = 3\sqrt{13}[/tex]

General Formulas and Concepts:

Pre-Algebra

Algebra II

Step-by-step explanation:

Step 1: Define

Point (-9, 8)

Point (-3, -1)

Step 2: Find distance d

And we have our final answer!

Answer:

D is correct because its the only graph that displays the first set of data correctly.

Answer:

12.922848

Step-by-step explanation:

I used my calculator

Answer:

Total: $420 (growth of $120)

Step-by-step explanation:

Multiply $300 by 0.025 (2.5%) which is equal to 7.5. Then multiply that by 16 months which gives you $120 added to your $300.

Answer:

HELP me with my last qu3estion

Step-by-step explanation:

Part A: Yes, the data represent a function. The definition of a function is a relation in which no value of x will have two different values of y.

(Every time you plug in 3 as x, you will always get 4 as y; it's ok if you plug in 3 and 5 as x and get the same y, you just can't get two different y's for one x; sorry, it is pretty confusing). None of the numbers in the table repeat, so we can safely say that the relation is a function.

Part B: All we have to do is plug in 11 for x in the function given to find the answer:

In the table, y = 8 when x = 11, but in the function given, y = 34 when x = 11, so the function given is greater.

Part C: To find the answer to C, just plug in 99 for f(x), as it tells you to do:

:)

Answer:

the answer is 78

Step-by-step explanation:

It is the largest one that i can see. The other options are cut off. If you could repost again....

Answer:

50%

Step-by-step explanation:

10/20 is equal to 1/2, 1/2 can be rewritten as .50 or 50%

Answer:

17.6 years

Step-by-step explanation:

There are currently 73 million cars in a certain country, decreasing by 1.7% annually.

How many years will it take for this country to have 54 million cars? Round to the

nearest year.

We use the formula

y = a(1 - r)^t

a = Initial amount = 73 million cars

y = Future amount = 54 million cars

r = decreasing rate = 1.7 % = 0.017

t = time is unknown

54,000,000 = 73,000,000(1 - 0.017)^t

Divide both sides by 73,000,000

54,000,000/73,000,000 = (0.983)^t

0.7397260274 = (0.983)^t

Take the logarithm of both sides

log 0.7397260274 = Log (0.983)^t

log 0.7397260274 =t log (0.983)

t = log 0.7397260274/log 0.983

t = -0.13092910029/-0.00744648216

t = 17.5826783005 years

Approximately = t = 17.6 years

Answer:

2pi/3

Step-by-step explanation:

Using the formula s = r(theta), where s is arc length, r is radius, and theta is the central angle,

s = 2(pi/3)

s = 2pi/3

Answer:

0, 46, 92, 138, 184, 230, 276, 322, 368, 414, 460, 506, 552

Step-by-step explanation:

multiples up until 12

Answer:

46,92,138,184,230,276,322,368,414,460

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Who cares? just copy down the answer.