I don’t understand this subject at all if you wold answer that would be a big help

Answer:

(1) N or n = 20

(2)  = 43.4

(3) σ = 9.78 and s = 10.04.

Step-by-step explanation:

Answer:

5 days

Step-by-step explanation:

26+35+41+ 18 = 120

120/24 = 5

The system of equations of the number of bottles in both classes has two distinct equations

Mr. Sanchez's class sold 39 bottles, while Mr. Kelly's class sold 44 bottles

The given parameters are:

Mr. Sanchez = $1.73

Mr. Kelly = $1.44

Represent the number of bottles in both classes with x and y,

So, we have the following equations

1.73x + 1.44y = 130.83

x + y = 83

Next, we plot the graphs of the equations

From the graph (see attachment), we have:

(x,y) = (39,44)

Hence, Mr. Sanchez's class sold 39 bottles, while Mr. Kelly's class sold 44 bottles

Read more about system of equations at:

https://brainly.com/question/14323743

Answer:

2x^2+1=5-2x

2x^2+1-5+2x

2x^2-4+2x=0

x^2-2+x=0

x^2+x-2=0

(x+2)(x-1)

x1= -2

x2= 1

Answer:

[tex]2x^2+1=5-2x2x^2+1-5+2x2x^2-4+2x=0x^2-2+x=0x^2+x-2=0(x+2)(x-1)x1= -2x2= 1[/tex]

Step-by-step explanation:

I hope this helps and have a good day!

Answer:

37,440

Step-by-step explanation:

To find volume the formula is : Length x Width x Height... So 30 x 24 x 52 = 37, 440

:D

Answer:

  12. sometimes

  13. always

  14. always

Step-by-step explanation:

Exponential functions with a positive base are defined for all real numbers. Such functions will always have a positive value.

__

The larger the base, the faster the decay for x < 0. In that part of the domain, 2^x > 10^x. (sometimes)

__

See the initial comment. (always)

__

See the initial comment. (always)

Answer:

First you add up all the numbers and then the unknowns.

Step-by-step explanation:

2q^2+12-2q-5q

2q^2+12-3q

2q^2-3q+12

Answer:

20 units

Step-by-step explanation:

Count the squares

Answer:

20 units

Step-by-step explanation:

Break up the shape into 5 squares. Each square is 4 units. Multiply 5 by 4, which is 20.

Answer:

Step-by-step explanation:

(2x−12)^2 can be factored into 2^2*(x - 6)^2, which in turn becomes

4(x^2 - 12x + 36).  Yes, this is a special product of the form

(a - b)^2 = a^2 - 2ab + b^2.

Answer:

that would be 1/2 because its the only one that could reduce the numbers.

Step-by-step explanation:

hope this helps,

kleann

The scale factor of the triangle ΔABC to ΔDEF will be 1/2. Then the correct option is A.

Dilation is the process of increasing the size of an item without affecting its form. Depending on the scale factor, the object's size can be raised or lowered. There is no effect of dilation on the angle.

The triangle ΔABC is similar to the triangle ΔDEF. Then the ratio of the corresponding sides will be constant. Then the scale factor is calculated as,

SF = 10 / 20

SF = 1 / 2

The scale factor of the triangle ΔABC to ΔDEF will be 1/2. Then the correct option is A.

More about the dilation link is given below.

https://brainly.com/question/2856466

#SPJ7

Answer:

I got 15.6

Step-by-step explanation:

I subtracted 28.8 percent from 68.4 then subtracted that number from 68.4

Answer:

The answer should be about 114.

Step-by-step explanation:

Of you look at the shape of the other angles. B and D seem to be about 90 and the shape of A is just a little bit bigger than ninety. I started by adding 78, 90, and 90 together which gave me 246. Then I subtracted 246 from 360 which gave me 114. I had estimated the answer to be around 110.

Answer:

A) 187.2

Step-by-step explanation:

Area of a regular polygon = 1/2(apothem × perimeter)

The perimeter of the triangle can me calculated by multiplying the side length by 3 ( because the polygon shown has 3 sides )

Side length = 20.8 , so perimeter = 3 × 20.8 = 62.4

Now we can find the area

Remember area of a regular polygon = 1/2(apothem × perimeter)

Apothem = 6 and perimeter = 62.4

So area = 1/2(6×62.4)

==> multiply 6 and 62.4

area = 1/2(374.4)

==> multiply 374 and 1/2

area = 187.2

Answer:

A rational number: 5.4, which also can be written as 27/5

Irrational number:

sqroot 28

approx= 5.29

Step-by-step explanation:

5.4 is a rational number because it is a terminating decimal. That means it ends after the 4, there are no more numbers. Also it can be written as a ratio (looks like a fraction) 27/5.

Sqroot28 is irrational. Since 28 is not a perfect square, when you squareroot it you get a number with a neverending decimal

sqroot28 = 5.2915026221...

since the decimal does not repeat or end it cannot be written as a ratio, so it is not rational

sqroot28 ~= 5.29

Answer:

0.0001

Step-by-step explanation:

2 x 10 x 0.0001 equals 0.0002. If you want confirmation do on a calculator

Answer:

10,000

Step-by-step explanation:

you move the decimal point 3 places to the right to end up with 2 so add as many zeros as many times you moved the decimal point from the 0.002.

Answer:

4/5

Step-by-step explanation:

divide brownies by friends

Answer:

$525

Step-by-step explanation:

new value = starting value(1 + rate)^years

new value = 500(1 + .05)^1

new value = 500(1.05)

new value = $525

Answer:

25

Step-by-step explanation: Im not sure how to do it thats just what IXL says

Answer:

breadth does it 9 feet

12 feet

Answer:

1.10 x 108.

Step-by-step explanation:

Answer:

[tex] x = - \frac{10}{9} [/tex]

Answer:

Step-by-step explanation:

Pls give brainlest if right.

10/20-3/6 ?

Answer:

34

Step-by-step explanation:

The value of a for the inverse function is 2, the value of b for the inverse function is 1, and the value of c for the inverse function is 0.25.

The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.

The inverse of the logarithmic function [tex]f(x) = \log_{0.5} x[/tex] is [tex]f^{-1}(x) = 0.5^x[/tex]

For x = −1 in the inverse function, then the value of a will be

[tex]f^{-1}(x) = 0.5^{-1}\\\\f^{-1}(x) = 2[/tex]

The value of a is 2.

For x = 0 in the inverse function, then the value of b will be

[tex]f^{-1}(x) = 0.5^{0}\\\\f^{-1}(x) =1[/tex]

The value of b is 1.

For x = 2 in the inverse function, then the value of c will be

[tex]f^{-1}(x) = 0.5^{2}\\\\f^{-1}(x) = 0.25[/tex]

The value of c is 2.

More about the function link is given below.

https://brainly.com/question/5245372

Answer:

a.2

b.1

c.0.25

Second part: Graph B (2nd) one

Step-by-step explanation:

Answer:

Carter's bedroom would cost more to carpet than Carly's because the floor area of the former is about five square feet greater than the floor area of Carly's bedroom.

Step-by-step explanation:

The area of either of these floors is found by multiplying length by width:

A = L*W.

Carly's bedroom is 15.3 ft by 8.7 ft; multiplying, we get A = 133.11 ft^2

Carter's is 14.4 ft by 9.6 ft:  A = 138.24 ft^2

Carter's bedroom area (138.24 ft^2) is about 5 ft^2 larger than Carly's and would thus cost more to carpet.

Answer:

[tex]\left[\begin{array}{ccc}8&2&3\\6&-5&1\\1&8&4\end{array}\right][/tex]

Step-by-step explanation:

To find the transpose all we do is change the rows into the columns and change the columns into rows.

So simply:

[tex]\left[\begin{array}{ccc}8&2&3\\6&-5&1\\1&8&4\end{array}\right][/tex]

Answer:

Flip the elements around, aka, transpose!

[8 2 3]

[6 -5 1]

[1 8 4]

Answer:

2/7

Step-by-step explanation:

[tex]slope = \frac{1 - 3}{2 - 9} \\ = \frac{ - 2}{ - 7} \\ = \frac{2}{7} [/tex]

Answer:

I think it $10800

Step-by-step explanation:

I have not read how to sole

Answer:

4,368 / 42

Step-by-step explanation:

I can tell without answering the problems because if you have a larger amount to divide by, it would lead to people having a higher amount. Meanwhile having a smaller amount to divide by.