Find the value if x and simplify completely

Answer:

456 hours

Step-by-step explanation:

19x24

Answer:

[tex] \sigma^2 = 3^2 \frac{10-1}{10}= 8.10[/tex]

Step-by-step explanation:

For this case we have a sample of n =10 and we have the following statistics:

[tex]\bar X = 37.3 , s= 3[/tex]

And we want to estimate the population variance. We need to remember that the population variance is given by this formula:

[tex]\sigma^2 =\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n}[/tex]

And the sample variance is given by:

[tex] s^2 =\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}[/tex]

And we can find a formula for the population variance in terms of the sample deviation like this:

[tex] \sigma^2 = s^2 \frac{n-1}{n}[/tex]

And replacing we got:

[tex] \sigma^2 = 3^2 \frac{10-1}{10}= 8.10[/tex]

Answer:

12 units?

Step-by-step explanation:

The answer is 17 units

Answer:

-37/6

Step-by-step explanation:

Answer:

A -37/6

Step-by-step explanation:

Answer:

105.2 ft²

Step-by-step explanation:

The diameter of the base of the cone is 6 ft which means its radius is:

r = d / 2 = 6 / 2 = 3 ft

Its height, h, is 7.6 ft.

The surface area of a cone is given as:

A = pi * r(r + √(h² + r²))

Therefore:

A = pi * 3(3 + √(7.6² + 3²))

A = pi * 3(3 + √(57.76 + 9))

A = pi * 3(3 + √(66.76))

A = 9.42(3 + 8.17)

A = 9.42 * 11.17 = 105.2214 ft²

Approximating to the nearest 10th, the surface area of the cone is 105.2 ft².

Answer:

The answer is 11.75

Step-by-step explanation:

All youre gonna do is add up all of the chapters she read which would end up giving you 11.75 therefore that is the answer:)

Answer:

11.75

Step-by-step explanation:

If you add the whole numbers first it's 11 and then you add the decimals .5 is also .50. so .50+.25=.75

Answer:

sinx = p/h , cosx = b/h , tanx = p/b

you can use these relations

Step-by-step explanation:

p = perpendicular = side opposite to the angle

h  = hypotenuse = side opposite to the right angle

b= base

if no angles are given, p and b can be interchanged

form triangle

In order for the points to form a triangle, the sum of the lengths of any two sides must be greater than the length of the third side. In this case, 5 + 6 = 11 > 2, 5 + 2 = 7 > 6, and 6 + 2 = 8 > 5. Therefore, the points form a triangle.

Answer:

3/2 and 3/4 are terminating decimals

Step-by-step explanation:

Terminating decimals are those whose decimals end.

3/2 = 1 .5

2/3 = .6666repeating

3/4 = .75

5/7 =.714285repeating

Answer:

3/2 and 3/4

Step-by-step explanation:

3/2=1.5

2/3= .6666...

3/4=.75

5/7=.7142...

So the only ones that terminate are 3/2 and 3/4

Answer:

No.

Step-by-step explanation:

For area you will multiply 12x12=144.

For the perimeter you will add 12+12=24

I hope this helps!

Answer:

40,516 hours

Step-by-step explanation:

.

Answer:

1,080

Multiply all of the numbers together

Answer:3.14

Step-by-step explanation: It has inf numbers it never ends

Answer:

1

Step-by-step explanation:

The slope of the line can be found by

m = (y2-y1)/(x2-x1)

    = (-3 -  -12)/(15-6)

   = (-3+12)/(15-6)

    = 9/9

   = 1

Answer: amplitude = 6.5

Step-by-step explanation:

The amplitude of a function is the maximum displacement from the from a fixed point or from the origin.

From the graph, you take the initial position of the object from the broken red line which is equal to 3.3 at the Y axis.

The peak or the maximum value = 9.8

Amplitude = 9.8 - 3.3 = 6.5

The maximum displacement is at Y axis

Answer:

B

Step-by-step explanation:

Answer:

x=1

Step-by-step explanation:

Btw you should put answer choices :)

Answer:

0.00000008

Step-by-step explanation:

The given value is 8.03 X 10^-8, which is already in scientific notation. None of the provided alternatives exactly match the given value. The closest number to the given value is 9.71 X 10^-8.

The given value is 8.03 X 10^-8. This is already in scientific notation, where a number is represented as a decimal number between 1.0 and 10.0, multiplied by a power of 10. Therefore, it is equivalent to itself. If you would look for the equivalent among the options you have, none of them would match exactly the given value. The number that comes closest to your value from those given is 9.71 X 10^-8, but remember, these two are not exactly the same.

https://brainly.com/question/16936662

#SPJ2

Answer:

Length = 14 inches

Width = 3 inches

Step-by-step explanation:

length * width = area

(x + 8 ) (x - 3) = 42

Use FOIL method

x*x  - x*3 + 8*x - 8*3 = 42

x² -3x + 8x - 24 = 42

x² + 5x - 24 - 42 = 0

x² + 5x - 66 = 0

Sum = 5

Product  = 66

Factors = 11 , (-6)

x²  + 5x -66 = 0

x² + 11x - 6x - 6*11 =0

x(x + 11) - 6(x + 11) = 0

(x + 11) (x -6) = 0

x + 11 is ignored because length and width will not have negative value.

x - 6 = 0

x = 6

Length = x + 8 = 6 + 8 = 14 inches

Width = x - 3 = 6 - 3 = 3 inches

Answer:

Angle A

Step-by-step explanation:

Angle A is the opposite angle to the longest side of the triangle.

Because the angle is larger, the side opposite of it should be long enough to connect to the two other sides.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

u = 16

Step-by-step explanation:

5u - 10 = 70

Add 10 to each side

5u -10 +10 = 70+10

5u = 80

Divide each side by 5

5u/5 = 80/5

u = 16

Answer:

Let us say the domain in the first case, has the numbers. And the co-domain has the students, .

Now for a relation to be a function, the input should have exactly one output, which is true in this case because each number is associated (picked up by) with only one student.

The second condition is that no element in the domain should be left without an output. This is taken care by the equal number of students and the cards. 25 cards and 25 students. And they pick exactly one card. So all the cards get picked.

Note that this function is one-one and onto in the sense that each input has different outputs and no element in the co domain is left without an image in the domain. Since this is an one-one onto function inverse should exist. If the inverse exists, then the domain and co domain can be interchanged. i.e., Students become the domain and the cards co-domain, exactly like Mario claimed. So, both are correct!

The absolute value function can be expressed as a piecewise function. The correct absolute value function that represents the given graph is f(x) = |x + 2| - 1. The vertex of the graph is (-2, -1) and the line of symmetry is x = 2.

a) Rewrite the function as a piecewise function: The absolute value function can be expressed as a piecewise function by considering the different intervals where the expression inside the absolute value changes its sign. In this case, the function may be written as:
[tex]f(x) = \begin{cases} -(x + 2) - 1, & \text{if } x \leq -2 \\ (x + 2) - 1, & \text{if } x > -2 \end{cases}[/tex]

b) Which of the following absolute value functions represents the graph: To determine which of the given options matches the graph, we compare the expressions inside the absolute values with the piecewise function from part (a). In this case, the correct match is f(x) = |x + 2| - 1.

c) Describe the relationship between the absolute value function and the vertex of the graph: The vertex of the absolute value function f(x) = |x + h| + k is (-h, k). In this case, the vertex is (-2, -1). This means that the graph has been shifted two units to the left and one unit down.

d) What is the line of symmetry of the graph: The line of symmetry for an absolute value function of the form f(x) = |x + h| + k is the vertical line x = -h. In this case, the line of symmetry is x = -(-2) = 2. The graph is symmetric with respect to the line x = 2.

Answer:

the third option, lengths of opposite sides are equal.

Step-by-step explanation:

for edg users I just took the test.

Answer:

x= 15

Step-by-step explanation:

85 and 6x+5 form a straight line.

They sum to 180

85+ 6x+5 = 180

Combine like terms

90 +6x = 180

Subtract 90 from each side

90+6x-90 = 180-90

6x = 90

Divide each side by 6

6x/6 = 90/6

x =15

Answer: x = 15

Step-by-step explanation: since it's a straight line so it's 180 degrees

so 6x + 5 = 95

6x = 90

x = 15

Answer:

$1.75 per can of peanuts

Step-by-step explanation:

$8.75/5=$1.75

Answer:

what i dont get what ur trying to say

Step-by-step explanation:                                                                    

Answer: (6, -1)

Step-by-step explanation:

Given that point (3,1) satisfies the function f(×).  From the equation

g(x)=-2f(x/2)+1

x/2 = 3

x = 6

Substitute the 1 for f(x/2)

g(x) = -2(1)+1

g(x) = -2 + 1 = -1

The point that would satisfy g(x)=-2f(x/2)+1 is (6, -1)

Answer:

The answer is A.

Step-by-step explanation:

This is Associative Law, a + (b+c) = (a+b) + c .

Answer:

Step-by-step explanation:

area of square=5×5=25 u²