Answer:
Step-by-step explanation:
b. p(10.5<x<11.2)= p(x<11.2)-p(x<10.5)
p(x<11.2)= (11.2-9.7)/1 = 1.5 = 0.9332
p(x<10.5)= (10.5-9.7)/1= .8= 0.7881
.9332-0.7881= .1451
c. 9.7-.253, 9.7+.253
9.447, 9.953
alex works for his father assembling clock motors he is paid a piecework rate of $8.50 per motor. this week he assembled 21 motors
Answer:
178.5
Step-by-step explanation:
21×8.50 is 178.5 just that
(2x-6)+4(x-3) I need help
Answer:
6x-18
x=-3
Step-by-step explanation:
Suppose you are in fort Simpson, northwest territories. Find the GST on each item. a) a digital camera that costs $89.97 b) a cordless phone that costs $24.97 c) a soccer ball that costs $17.99
Answer:
Step-by-step explanation:
j
Can someone please help me with this assignment? I will mark your answer brainliest! :)
How many numbers among 1000-2000 are multiples of any two but not three of the first three odd prime numbers?
Hint: the first three odd prime numbers are 3,5,7
Answer: The first three odd prime numbers are 3, 5, and 7. A number is a multiple of two but not three of these prime numbers if it is divisible by two of them, but not the third.
To find the number of numbers between 1000 and 2000 that are multiples of two but not three of the first three odd prime numbers, we can count the number of multiples of each pair of prime numbers and subtract the number of multiples of all three prime numbers.
There are 200 multiples of 3 and 5 between 1000 and 2000 (200 numbers for each, for a total of 200 * 2 = 400). There are 133 multiples of 3 and 7 between 1000 and 2000 (133 numbers for each, for a total of 133 * 2 = 266). There are 80 multiples of 5 and 7 between 1000 and 2000 (80 numbers for each, for a total of 80 * 2 = 160). There are no multiples of all three prime numbers between 1000 and 2000.
Thus, the total number of numbers between 1000 and 2000 that are multiples of two but not three of the first three odd prime numbers is 400 + 266 + 160 = 826.
Step-by-step explanation:
The volume of a rectangular prism with a cone shaped hole in it is approximately 163.22cm³ (as shown below).
✏️ What is the height of the cone?
Answer:
Height of the cone = 5 cm
Step-by-step explanation:
Volume of the rectangular prism with a cone shaped hole = Volume of the rectangular prism - Volume of the cone
Volume of the rectangular prism = Length × Width × Height
= 5 × 5 × 7
= 175 cm³
Volume of the cone = \(\frac{1}{3}\pi r^{2}h\)
Here, r = Radius of the cone
h = Height of the cone
Volume of the cone = \(\frac{1}{3}\pi (\frac{3}{2})^{2}(h)\)
= 0.75πh cm³
Volume of the rectangular prism with a hole = 163.22 cm³
175 - 0.75πh = 163.22
0.75πh = 175 - 163.22
0.75πh = 11.78
h = 5 cm
(b) how many people would you need to interview to be 73% sure that at least seven of these people can read and write (are not illiterate)? (enter the smallest number of people needed to be at least 73% sure.)
0.3193 is the probability of your 73% surity that at least seven of these people can read and write ( are not illiterate ).
What is probability ?Probability is a branch of mathematics that deals with numerical representations of the likelihood of an event occurring or of a proposition being true. A probability is a number between 0 and 1, where 1 indicates certainty and 0 indicates impossibility of the event.
Calculationp = 0.73
q = 1 - p = 1 - 0.73 = 0.27
n = 8
Using binomial probability formula ,
P(X = x) = (n C x) * px * (1 - p)n - x
P(X > 7) = (8 C 7) * 0.737 * (0.37)8-7 +(8 C 8) * 0.738 * (0.37)8-8
= 0.238624 + 0.080646
Probability = 0.3193
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What is the surface area of the rectangular prism?
3 in.
12 in.
9 in
A
358 in
B
342 in?
315 in
D
306 in
Answer: the answer is b
Step-by-step explanation:
Answer:
Oh im doing my star 360 test rn too!
Step-by-step explanation:
Hi, can someone help with these two questions ASAP! (Ignore the multiple choice I circled, not sure if it’s correct)
Thanks!!
Answer:
1) D. \(y = -\frac{3}{2}\cdot x^{12} -7\cdot x^{5}+\frac{2}{3}\cdot x -10\)
2) E. The coefficient of \(x\) is -16.
Step-by-step explanation:
1) A polynomial is an algebraic expression of the form \(p(x) = \Sigma \limits_{i = 0}^{n} c_{i}\cdot x^{i}\), where \(n\) is the grade of the polynomial. In this case, the only equation that satisfies this definition is:
\(y = -\frac{3}{2}\cdot x^{12} -7\cdot x^{5}+\frac{2}{3}\cdot x -10\)
Correct answer: D
2) Let \(p(x) = (2\cdot x + 1) \cdot (5\cdot x^{3}-8\cdot x +4)\), we proceed to expand the expression by algebraic means:
\(p(x) = (2\cdot x + 1)\cdot (5\cdot x^{3}) -(2\cdot x +1)\cdot (8\cdot x) + 4\cdot (2\cdot x + 1)\)
\(p(x) = 10\cdot x^{4}+5\cdot x^{3}-16\cdot x^{2}+4\)
We see that coefficients for \(x^{2}\) and \(x\) are -16 and 0, respectively. Hence, the incorrect answer is E.
help with this pls geometry!!
Answer:
548
Step-by-step explanation:
First, the sides:
7 × 12 = 84
84 × 2 = 168
7 × 10 = 70
70 × 2 = 140
10 × 12 = 120
120 × 2 = 240
Add:
168 + 140 + 240
^ ^
308 + 240
548
Hope this helped.
Answer:
The surface area of the rectangular prism is 548\(ft^{2}\)
Step-by-step explanation:
To find the surface area of the rectangular prism you need to use the formula
A=2(wl+hl+hw)
Answer to question commented:
The surface area of the other rectangular prism is 430\(ft^{2}\)
Hope this helps!
if a person consumes 65 grams of protein and a total of 2700 kcalories per day, approximately what percentage of energy would be derived from protein?
Approximately 9.63% of the energy consumed by the person would be derived from protein.
How to calculate percentage of energy from protein?To calculate the percentage of energy derived from protein, we need to first convert the amount of protein consumed from grams to calories. Protein provides approximately 4 calories per gram. Therefore, 65 grams of protein would provide:
65 grams * 4 calories/gram = 260 calories
This gives us 260 calories from protein.
To find the percentage of energy derived from protein, we can divide the calories from protein by the total calories consumed and multiply by 100:
260 calories / 2700 calories * 100% ≈ 9.63%
Therefore, approximately 9.63% of the energy consumed by the person would be derived from protein.
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carol ate an entire 9 ounce bag of grapes. if one serving is 3 ounces and contains 60 calories, how many total calories did carol eat?
Carol consumed the whole nine-ounce package of grapes. if there are 60 calories per 3 ounce serving. 180 calories are included in 6 ounces of carol.
To calculate the probability of an occurrence, divide the total number of outcomes by the total number of possible outcomes. There are differences between probability and odds. Odds are calculated by dividing the likelihood that a circumstance will occur by the likelihood that it won't. Probability is a statistic used to assess the likelihood that an event will take place. When we toss the coin in the air, the probability that it will land with the heads side up is calculated. Here is a practical use of probability that you are probably already familiar with. We always check the weather forecast before a significant outing.
Since there are \(60\) calories in \(3\) ounces of ice cream
No of calories in \(1\) ounce of carol eat \(=60/3\)
Thus, the no of calories in \(9\) ounces of grapes\(=\) No of calories in \(1\) ounces of carol eat \(*9\)
= The no of calories in \(6\) ounces of carol eat \(= 20*9= 180\)
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5+4(2 + 4)2
6+ 12 : 3 - (6 x 2)
12 -
(4+8) : 2
(6 + 1)2 – 2(3+6)
(8 + 9) – 10+ (2 + 3)?
Answer:
−72x2+18?
Step-by-step explanation:
Find the measure of the indicated angles. supplementary angles with measues 5x−31 and 9x−55 The angles are (Simplify your answer. Type an integer or a fraction. Type your answer in degrees. Do not indude the degree symbol in your answer. Use a comma to separate answers as needac
The measures of the supplementary angles of equations 5x - 31 and 9x - 55 are 64 degrees and 116 degrees respectively.
Supplementary angles are angles whose measures add up to 180 degrees. In this case, we have two supplementary angles with measures 5x - 31 and 9x - 55.
To find the value of x, we can set the sum of the angle measures equal to 180 degrees: (5x - 31) + (9x - 55) = 180.
Next, we can simplify the equation by combining like terms: 14x - 86 = 180.
Adding 86 to both sides, we have 14x = 266.
Dividing both sides by 14, we get x = 19.
Now that we have the value of x, we can substitute it back into the expressions for the angle measures: 5x - 31 and 9x - 55.
Substituting x = 19 into 5x - 31, we have 5(19) - 31 = 95 - 31 = 64.
Substituting x = 19 into 9x - 55, we have 9(19) - 55 = 171 - 55 = 116.
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The price of n tickets to a concert is is 9n + 6 dollars. What is the cost, in dollars, for 8 tickets to the play?
The cost for 8 tickets to the play is
Answer:
78
Step-by-step explanation:
do 9x8= 72
then 72+6=78
A new company wants to offer a line queuing service where customers book someone to wait in line on their behalf through a smart phone app. What concept is represented by the possibility that no one wants to pay someone else to wait in line ?.
A new company wants to offer a line queuing service where customers book someone to wait in line on their behalf through a smart phone app.
The possibility that no one wants to pay someone else to wait in line can be represented by the concept of probability.
The probability of an event occurring is defined by probability.
The outcome of an event may be known to us or unknown to us. When this happens we say that there is a chance that the event will happen or not.
We can identify probability by simply dividing the favorable number of possibilities by the entire number of possible outcomes.
Hence, probability is a numerical representation of the chance that a specific event will take place.
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which two features of igneoous rocks are determined by their cooling rate
It is crystal size and rock texture.
Volcanic rocks are another name for extrusive rocks. According to their texture and mineral or chemical makeup, igneous rocks are categorized. The rate of cooling affects the texture of the rock. The crystals grow larger as the rock cools more slowly.
Thanks,
As the last answer for today.
Happy Thanksgiving
- Eddie E.
The ratio of width to length for an American flag is 10 to 19. How wide is a flag that is 66 cm long
Answer:
35cm
Step-by-step explanation:
The ratio of width:length is 10/19. Since the given length is 66cm long, we multiply by the ratio to get 66 x 10/19 = 34.7 = 35cm
Kristin boards a Ferris wheel at the 3-o’clock position and rides the Ferris wheel CCW for one full rotation. The Ferris wheel has a radius of 8 meters and the center of the Ferris wheel is 12 meters above the ground. Imagine an angle with its vertex at the center of the Ferris wheel that subtends the path Kristin travels.
Answer the following questions.
a.If Kristin has traveled 4 meters along the path of the Ferris wheel then the angle has swept out _________radians. b.If Kristin has traveled 45 meters along the path of the Ferris wheel then the angle has swept out ___________radians. c. Write a formula that expresses the number of radians θ the angle has swept out in terms of the number of meters d Kristin has traveled since the ride started.
a) If Kristin has traveled 4 meters along the path of the Ferris wheel then the angle has swept out 0.5 radians.
b) If Kristin has traveled 45 meters along the path of the Ferris wheel then the angle has swept out 5.625 radians.
c) The formula that expresses the number of radians θ the angle has swept out in terms of the number of meters is θ = s / r.
a. To determine the angle in radians, we can use the arc length formula for a circle. The formula is given by θ = s / r, where θ is the angle in radians, s is the arc length, and r is the radius of the circle.
In this case, Kristin has traveled 4 meters along the path of the Ferris wheel, and the radius is 8 meters.
Thus, the angle swept out is
θ = 4 / 8 = 0.5 radians.
b. Following the same approach, if Kristin has traveled 45 meters along the path of the Ferris wheel, the angle swept out is
θ = 45 / 8 ≈ 5.625 radians.
c. The formula that expresses the number of radians θ the angle has swept out in terms of the number of meters Kristin has traveled since the ride started is given by
θ = s / r,
where θ is the angle in radians, s is the arc length traveled by Kristin, and r is the radius of the Ferris wheel.
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Solve the equation for the amount of sugar, S
Answer:
W in green and down should be 4
Step-by-step explanation:
what I mean is Water divided by 4 equal sugar
Select the graph that represents two quantities in a proportional relationship.
Answer:
The answer is D
Step-by-step explanation:
The Line is going up at the same rate, continuesly, that is what makes it proportional.
Write the equation of the line that passes through the points (3,0) and (8,-2). Put your answer in fully simplified point-slope form, unless it is a vertical or horizontal line.
An equation of the line that passes through the points (3, 0) and (8, -2) is y - 0 = -2/5(x - 3).
What is the point-slope form?Mathematically, the point-slope form of a straight line can be calculated by using this mathematical expression:
y - y₁ = m(x - x₁) or y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)
Where:
m represents the slope.x and y are the points.At data points (3, 0), a linear equation of this line in slope-intercept form can be calculated by using the point-slope form as follows:
y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)
y - 0 = (-2 - 0)/(8 - 3)(x - 3)
y - 0 = -2/5(x - 3)
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The drawing of a building has a scale of 1 inch to 30 feet. the length is 1.25 inches and the width is 0.75. what is the actual height, in feet, of the building?
the numbers are 1.25in and the other one is 0.75in.
solve within the given domain
Answer:
answer 67.98
explanation= ; built different
Given the following parallelogram and AC = 24, what is the value of x
we have, the diagonal bisect each other, therefore
\(x=\frac{AC}{2}=\frac{24}{2}=12\)answer: x = 12
Find the surface area of the cylinder. Use 3.14 for $\pi$ . a hay bale with a diameter of 30 inches and a height of 72 inches
The total surface area of the cylinder is 8195.4 square inches.
Given that, a hay bale with a diameter of 30 inches and a height of 72 inches.
Here, radius = 30/2 = 15 inches
We know that, the total surface area of a cylinder is 2πr(r + h).
Here, surface area of a cylinder = 2×3.14×15(15+72)
= 2×3.14×15×87
= 8195.4 square inches
Therefore, the total surface area of the cylinder is 8195.4 square inches.
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Mr. White is renting a large truck for one week and a few additional days d. He does not have to pay a per mile fee. Evaluate the expression 295+90d to find how much he will pay for a 10-day rental.
Answer:
I believe the answer is 1195 dollars
Step-by-step explanation:
i need an anwaser
to this question
The most appropriate measure of center is the mean which describes the average weight of oranges.
For the given data:
5,6,7,7,8,8,10,11,11,14,16,19,20,21
The most appropriate measure of center from the data given is the mean. The mean value gives the average weight of the oranges in the scenario given above.
The mean can be calculated thus :
(Sum of weight / Number of values)
Mean = (163 / 14)
Mean = 11.64
Hence, the most appropriate measure of center is the mean and it describes the average weight of oranges.
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identify an equation in point-slope for the line parellel to y= 1/2 x-7 that passes through (-3 , -2)
Answer:
y+2=1/2(x+3)
Why?
Point slope form is written as (y-y1) = m(x-x1) with y1 being the value of y at a certain point, x1 being the value of x at a certain point, and m being slope. y1 and x1 are given to us by the point (-3, -2) letting us know that y1=-2 and x1=-3. The only thing left to find is slope. Parallel lines have the same slope. If the line we are trying to find is parallel to the one given in the question, we just need to find the slope of the equation given. That equation is given in slope-intercept form which is y = mx + b. m is still slope so we can see that the slope is 1/2. Now we can plug m, x1 and y1 into the point slope form equation to get y + 2 = 1/2(x + 3)
pls help me!!
Which two equations are equivalent?
y= 1/2x+3
y=x+6
2y=x+6
Answer:
first and third
Step-by-step explanation:
Consider
y = \(\frac{1}{2}\) x + 3 ( multiply through by 2 )
2y = x + 6 ← third equation
Answer:
the first and last equation
Step-by-step explanation: