Answer:
First Question: 1. 60 hours 2. Wednesday 6:00 PM
Step-by-step explanation:
Sorry but I couldn't figure out the answer to the second question :(
Hope this helped :D
What is the fourth rule of probability
Answer: Addition Rule
Step-by-step explanation:This is the probability that either one or both events occur. a. If two events, say A and B, are mutually exclusive - that is A and B have no outcomes
Unit 6, Lesson 15
Practice Problems
1. a. Consider the inequality .
i. Predict which values of will make the inequality true.
ii. Complete the table to check your prediction.
-4 -3 -2 -1 0 1 2 3 4
Based on the calculations, we can predict that 2, 3, 4, 5, etc., will make the inequality true.
How to solve an inequality?In Mathematics, an inequality can be used to show the relationship between two (2) or more integers and variables in an equation.
Evaluating the given inequality, we have:
-1 ≤ x/2
-2 ≤ x
x ≥ 2.
Therefore, we can predict that 2, 3, 4, 5, etc., will make the inequality true.
Next, we would complete the table to check our prediction:
x -4 -3 -2 -1 0 1 2 3 4
x/2 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2
When x = -2:
-1 ≤ -2 (false)
When x = 2:
-1 ≤ 1 (true)
When x = 3:
-1 ≤ 3 (true)
When x = 4:
-1 ≤ 4 (true)
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Complete Question:
1. a. Consider the inequality -1 ≤ x/2.
i. Predict which values of will make the inequality true.
ii. Complete the table to check your prediction.
Find the graph of the inequality >- 1x +1. 6 Find the graph of the inequality > - 1x +1 . 6
Answer:
A
Step-by-step explanation:
We know the graph must be a dotted line.
Eliminate C and D.Also, since there is a > sign, the line must be shaded above.
Eliminate B.This leaves A as the answer.
For the given functions f and g find f•g and state it’s domain
f(x) = 3x - 6; g(x) = 8x +4
The function is (c) (f.g)(x) = 24x^2 - 36x - 24; domain of all set of real numbers
How to determine the composite functions?The given parameters are:
f(x) = 3x - 6; g(x) = 8x +4
The composite function is calculated as:
(f.g)(x) = f(x) * g(x)
This gives
(f.g)(x) = (3x - 6) * (8x + 4)
Expand
(f.g)(x) = 24x^2 + 12x - 48x - 24
Evaluate the difference
(f.g)(x) = 24x^2 - 36x - 24
The above function is a quadratic function;
Quadratic functions have a domain of all set of real numbers
Hence, the function is (c) (f.g)(x) = 24x^2 - 36x - 24; domain of all set of real numbers
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Find the equation of the graph
y=[tex]\sqrt{x}[/tex]
y=3[tex]\sqrt{x+1}[/tex]
y=[tex]\sqrt{x+7}[/tex]
y=[tex]\sqrt{x-7}[/tex]
Answer:
c
Step-by-step explanation:
y=[tex]\sqrt{x+7}[/tex]
Which compound inequality represents the range for the skull size of raccoons? Answer choices are rounded to the nearest hundredth.
16 ≤ 1.02x − 31.5 ≤ 22
The range for the following inequality rounded to nearest hundredth is 46.57≤x≤52.45
In mathematics, an inequality is a relation that holds between two values when they are different. The notation a ≠ b means that a is not equal to b. It does not say that one is greater than the other, or even that they can be compared in size . Inequality are the sign which assign the great and less of amount between to numbers,`<. .>
Let's solve your inequality step-by-step.
16≤1.02x−31.5≤22
Add 31.5 to all parts:
16+31.5≤1.02x−31.5+31.5≤22+31.5
Adding we get:
47.5≤1.02x≤53.5
Divide all parts by 1.02:
47.5/1.02≤1.02x/1.02≤53.5/1.02
Dividing we get:
46.568627≤x≤52.45098
Rounding it to nearest hundredth we get
46.57≤x≤52.45
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Find the height of the triangle by applying formulas for the area of a triangle and your knowledge about triangles.
This is a triangle. side a has a length of 12 inches. side b has a length of 12 inches. side c has a length of 8 inches. The altitude to side c has a length of X inches.
Using the Pythagorean Theorem, the altitude to side c has a length of 11.3 inches.
What is the Pythagorean Theorem?The Pythagorean Theorem relates the length of the legs [tex]l_1[/tex] and [tex]l_2[/tex] of a right triangle with the length of the hypotenuse h, according to the following equation:
[tex]h^2 = l_1^2 + l_2^2[/tex]
To find the altitude relative to side c, we bisect this side, which cuts it's length into half(now of 4 inches), forming a right triangle in which:
The altitude is the other leg.The side of 12 inches is the hypotenuse.Hence:
[tex]x^2 + 4^2 = 12^2[/tex]
[tex]x = \sqrt{12^2 - 4^2}[/tex]
x = 11.3 inches.
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y = -x^2+6x+5 Rewrite the following quadratic function in vertex form. Then, determine if it has a maximum or minimum and say what that value is.
What is the volume of the cylinder below?
OA. 288 units³
B. 216 units3
C. 324 units3
D. 432 units3
Answer:
288π
Step-by-step explanation:
Volume of a cylinder = πr²h
r = radius = 6
h = height = 8
Volume = πr²h
Volume = π × 6² × 8
Volume = π × 36 × 8
Volume = 288π
A sample of size 50 will be drawn from a population with mean 73 and standard deviation 8. Find the 19th percentile of the sample mean.
Answer:
72
Step-by-step explanation:
Geometry
Does anyone know how to do this?
For all rectangles, the area is the length multiplied by the height. For squares (a special type of rectangle), the length and height are the same, so you just use [tex]s^2[/tex], where [tex]s[/tex] is the side length.
[tex]A=s^2=16^2=\boxed{256}[/tex]
(b) The circleThe formula for the area of the circle is [tex]\pi r^2[/tex], where [tex]\pi[/tex] is pi, a constant, and [tex]r[/tex] is the radius of the circle, or the length from the center point to the edge.
We're given the side length of the square, which is the same as the diameter of the circle (length from edge to edge going through the center point). Divide the diameter by [tex]2[/tex] to get the radius of [tex]8[/tex] kilometers.
[tex]A=\pi r^2=\pi8^2=\boxed{64\pi}\approx201.1[/tex]
(c) The blue sectionThe area of the blue section is simply the area of the square minus the area of the circle since we just want what's left over.
[tex]A=\boxed{256-64\pi}\approx54.9[/tex]
You can keep the answer exact (the boxed expression) or use the approximate value of 54.9, depending on the instructions for the assignment.
pls help with and pls explain
Answer:
3.) b) The straight line that divides the parabola into half.
4.) b) 1/11^4
Explanation:
3. The axis of the symmetry is the straight line that divides the parabola into half.
Note down: the image below which shows a parabola (red line) and axis of symmetry (blue line).
4. Formula's: [tex]a^{-1} = \dfrac{1}{a}[/tex] , same with [tex]a^{-4 } = \dfrac{1}{a^4}[/tex]
So here: [tex]11^{-4}[/tex] is equivalent to [tex]\dfrac{1}{11^4}[/tex] which later equals to [tex]\dfrac{1}{14641}[/tex]
Middle School Math - Problem Solving and Discovery (7-8)
Directions: Use a systemic list to solve the following problems. Make sure to show all of your work!
1. Rides Tickets: Marcy had $10.00 to spend at the state fair. She spent all of it on the ride tickets. The
rides cost either $0.50, $1.00, or $1.25 each. What are all the possible ways in which she spent her
money?
Answer:
10
Step-by-step explanation:
i add the n subtrasct
the i east
foodooodododo]
999937
3;33
2. For the entire world's population, approximately 14% of all people speak Chinese as
their native language. Suppose four people are randomly selected from the Earth's
population, and define x to be the number of these who speak Chinese as their native
language. The probability distribution associated with this random variable is given below.
Complete the table to find the answer.
I don't know please help me
Determine the most convenient method to graph the following line.
3x+2y=12
Select the correct answer below:
Vertical Line
Horizontal Line
Intercepts
Slope-intercept
Step-by-step explanation:
3x + 2y = 12
2y = 12 - 3x
y = 6 - 3/2 x
so, it is a regular line, not horizontal, not vertical.
the easiest way to graph it is to find the 2 intercepts at the x- and at the y-axis (setting x = 0 gives us the y value for the y-axis intercept, setting y = 0 gives us the x value for the x-axis intercept).
then use a ruler and draw a line through both points and well beyond these 2 points.
x = 0
3×0 + 2y = 12
2y = 12
y = 6
point (0, 6)
y = 0
3x + 2×0 = 12
3x = 12
x = 4
point (4, 0)
In the following figure. Find the length of the unknown side of the triangle. Give an exact answer then an
answer correct to 5 decimal places.
Answer:
Step-by-step explanation:
Formula
c^2 = a^2 + b^2
Givens
a = 3b = 8c = ?Solution
c^2 = 3^2 + 8^2 Substitute givens
c^2 = 9 + 64 Combine
c^2 = 73 Take the square root of both sides
√c^2 = √73
c = √73 \
Exact answer
c = √73 73 is prime. It will break down no further
Approximate answer
c = 8.54400 Both zeros must be entered
When asked to find the sum of two mixed numbers with different
denominators, you should
before you add.
о A. find the difference
O B. find a common denominator
OC. round each fraction
The solution to When asked to find the sum of two mixed numbers with different denominators, you should before you add, find a common denominator.
Addition of fractionmixed numbers are; 1 2/5, 2 1/3, 4, 4/5Numerator refers to the upper or top value of a fraction.Denominator refers to the bottom or down value of a fraction.For instance,
4 1/3 + 3 2/5
= 13/3 + 17/5
find common denominator
= (65+51) / 15
= 116/15
= 7 11/15
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What is the coefficient of "y" after you multiply the following:
( -3 + 2 y) ( -6 + -4 )
answer using two decimal places.
Answer:
20
Step-by-step explanation:
-3(-6+4)+2y(-6+-4)
18 - 12 - 12y - 8y
6 +-20y
Calculate the amount of money you'll have at the end of the indicated time period.
You invest $3000 in an account that pays simple interest of 3% for 10 years.
The amount of money you'll have at the end of 10 years is
The amount of money you'll have at the end of 10 years is $3900.
Given that, P=$3000, R=3% and T=10 years.
What is the formula to find the simple interest?The formula to find the simple interest is [tex]Interest=\frac{P \times T \times R}{100}[/tex].
Now, simple interest [tex]=\frac{3000 \times 10 \times 3}{100}=\$900[/tex].
Amount=Simple Interest+Principal
=900+3000=$3900
Therefore, the amount of money you'll have at the end of 10 years is $3900.
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Which of the following is a parent function?
O A. 1(x)=2*3^x
OB. 1(x)=x^4 +3
O C. 1(x)=e^x
OD. 1(x)=2x
The answer to this question is choice C
Suppose that, in 2006, Norway produced 17.699 million computers. The total world production that year totaled 127 million computers. What percent of the world's total production of computers is contributed by Norway? Round your answer to the nearest tenth of a percent.
Answer:
about 13.9%
Step-by-step explanation:
[tex] \frac{17.699}{127} (100\%) = 13.9\%[/tex]
25. What is the value of the function f(x) = 3(4- x) when x = 7?
Answer:
-9
Step-by-step explanation:
1. f(x) = 3(4-x)
2. f(x) = 3(4-7)
3. f(x) = 3(-3)
4. f(x) = -9
[tex]\Large\Box\underline{\textsf{A. What is Asked}}[/tex]
What is the value of the function f(x)=3(4-x) when x=7?
[tex]\Large\Box\underline{\textsf{This problem has been solved!}}[/tex]
[tex]\boxed{\begin{minipage}{4cm} \textsf{Put in 7 for x,}\\\textbf{since we're given} \\ that x = 7. \\ \blacksquare^\bigstar\blacksquare \end{minipage}}[/tex]
[tex]\bf{\Box\!\!\!\!\!\bullet f(x)=3(4-7)=3(-3)=\overbrace{-9}}\xleftarrow{ANSWER}[/tex]
[tex]\cline{1-2}[/tex]
[tex]\bf{Result:}[/tex]
[tex]\bf{=-9}[/tex]
[tex]\LARGE\boxed{\bf{aesthetic\not1\theta\ell}}[/tex]
What is the value of x in the triangle
Answer:
[tex]5\sqrt{3}[/tex]
Step-by-step explanation:
the sides of a 30 60 90 triangle are x, 2x, and [tex]x\sqrt{3}[/tex], with [tex]x\sqrt{3}[/tex] being opposite to the 60 degree angle, and x being adjacent to the 60 degree angle. If [tex]x\sqrt{3}[/tex] = 15 (as given from the image), you can calculate x to be [tex]5\sqrt{3}[/tex].
Volume and surface area
Answer:
The 1st one is 540π
The 2nd one is 1696.46
Step-by-step explanation:
To find the volume of a cylinder, you do the following:
[tex](r)^2\pi \times h[/tex]
Where r represents the radius of the circle and h represents the height. Because it's multiplication, we can change it to:
[tex]r^2\times h \times \pi[/tex]
So since the radius is 6, 6^2 is 36. Then we multiply by 15, to get 540. Then now since we don't need to multiply the pi, you just leave it as 540π.
For the second one, multiply 540 by pi to get the answer, then round it to the nearest hudredth to get 1696.46.
a. Missing x:-6 Missing y:22 c. Missing x:-7 Missing y:20 b. Missing x:-7 Missing y:22 d. Missing x:-6 Missing y:21
This exercise is about Linear Functions. From the values given, we can state that:
The value of missing x = 6The value of missing y = 21 (Option D)What is the explanation for the above?Given that the table represents a linear function, so the function is a straight line.
Taking two points
(-12, 17)
(-10, 19)
To determine the slope between (-12, 17) and (-10, 19), we need to use the formula:
Slope = (y2-y1)/(x2 - x1)
Recall that:
(x1, y1) = (-12, 17); and
(x2, y2) = (-10, 19)
m = 19 -17/-10 -17
m = 1
Leveraging the point-slope to create the linear equation, we have:
y-y1 = m(x-x1)
where m is the slope of the line and (x₁, y₁) is the point substituting the values m = 1 and the point (-12, 17). Hence, we have:
y-y1 = m(x-x1)
→ y-17 = 1 (x-(-12))
→ y - 17 = x +12
y = x + 12 + 17
y = x + 29 ..................................Linear Equation
Next, we substitute x = -8 into the Linear Equation
y = (-8) + 29
y = 21
Hence, the missing y = 21; and
The missing x = -8
If we substitute y = 23 into the equation, we have:
y = x + 29
23 = x + 29
x = 29 - 23
x = 6
Thus, when the value of y = 23, the missing x is = 6
Conclusively,
The value of missing x = 6
The value of missing y = 21
Full Question
Determine any data values that are missing from the table, assuming that the data represent a linear function.
X Ix ly |-12 17 -10 19 -8 23
a. Missing x:-6 Missing y:22
b. Missing x:-7 Missing y:22
c. Missing x:-7 Missing y:20
d. Missing x:-6 Missing y:21
Please select the best answer from the choices provided.
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Can you help me to create a histogram graph with the following data please?
The range data is 55
The attached graph represents a histogram that has a range of 55
How to create the histogram?The range is given as:
Range = 55
The range is calculated as:
Range = Maximum - Minimum
So, we have:
Maximum - Minimum = 55
Rewrite as:
Maximum = Minimum + 55
Let the minimum be 10.
So, we have:
Maximum = 10 + 55
Evaluate
Maximum = 65
The following dataset can be used to create the histogram
Score Frequency
10 2
15 5
45 3
65 1
This is so because it has a range of 55
See attachment for the histogram
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Find the absolute maximum and absolute minimum values of f on the given interval.
f(x) = 4x³ - 18x² - 48x + 7, [-2, 5]
The first thing we need to do is evaluate the function at its endpoints.
[tex]f(-2)=-1\\\\f(5)=-183[/tex]
Then, we need to find the critical points to find if the stationary points give the absolute min/max values.
[tex]f'(x)=12x^2 - 36x-48=0\\\\x^2 - 3x-4=0\\\\(x-4)(x+1)=0\\ \\ x=-1, 4[/tex]
[tex]f(-1)=33\\\\f(4)=-217[/tex]
So, the absolute maximum is 33 and the absolute minimum is -217
Our goal is to make add on during 85% of sales.If you make 35 sales how many add on do you need to make to meet the goal
To achieve the goals, he needs to make 29.75 sales and 30 sales as add-on sales.
Since we have given that,
A total number of sales = 35
According to the question, his goal is to make add-on sales during 85% of sales.
So, His added sales would be 85% of sales,
What is the percentage?A percentage calculator computes a number of values involving percentages, including the percentage difference between two given values.
85 percent of 35
[tex]=(\frac{85}{100}) \times 35\\[/tex]
=29.75
To achieve the goals, he needs to make 29.75 sales and 30 sales as add-on sales.
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sec(x)- cos(x)=sin(x)tan(x)
Answer:
Step-by-step explanation:
Reflect (4, 1) over the y-axis. Then translate the result to the right 2 units. What are the coordinates of the final point?
Answer:
Step-by-step explanation:(-4, -1) --> (4, -1). Translating two units to the right means adding two units to the x-coordinate: (4, -1) --> (6, -1). This is our final point