f(x)= 5cos(x) +3
1) Considering a generic cosine function as y= Acos(Bx +C) +D the amplitude, or half the length between the highest point of the curve is found by:
\(Amplitude\colon\text{ |A|}\)2) Examining the given options, then we can state that f(x)= 5cos(x) +3 has an amplitude of 5 units
On the average, 1 computer in 800 crashes during a severe thunderstorm. A certain company had 4,000 working computers when the area was hit by a severe thunderstorm.
(a) Compute the probability that less than 10 computers crashed.
(b) Compute the probability that exactly 10 computers crashed.
You may want to use a suitable approximation.
Using the Poisson distribution, the probabilities are given as follows:
a) P(X < 10) = 0.9682.
b) P(X = 10) = 0.0181.
What is the Poisson distribution?In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following equation:
\(P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}\)
The parameters are given as follows:
x is the number of successes that we want to find the probability of.e = 2.71828 is the Euler number\(\mu\) is the mean in the given interval or range of values of the input parameter.On average, 1 computer in 800 crashes, hence the mean number of crashes for 4000 computers is given by:
\(\mu = 1 \times \frac{4000}{800} = 5\)
Then the probability that less than 10 computers crash is:
P(X < 10) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6) + P(X = 7) + P(X = 8) + P(X = 9).
All these values are found using the probability mass function given at the beginning of the answer. Using a calculator, with parameter \(\mu = 5\), we have that:
P(X < 10) = 0.9682.
For item b, the probability is:
\(P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}\)
\(P(X = 10) = \frac{e^{-5}5^{10}}{(10)!} = 0.0181\)
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How many triangles of any size are there in a star?
There are many shapes of a star. It depends on the shape of the star. If you’re referring to this star, then the number of triangles is 5.
Hope this answers your question!
What is the value of a?
Answer:
Let us make the last unknown interior angle be "b"
b+a+36=180
b=180-36-a
b=144-a
for the main triangle,
a+144-a+a-28=180
2a+116=180
2a=180-116
2a=64
a=32
so a=32
*PRE-CALC URGENT + 100 POINTS*
A jumping spider's movement is modeled by a parabola. The spider makes a single
jump from the origin and reaches a maximum height of 20 mm halfway across a horizontal distance of 160 mm.
Part A: Write the equation of the parabola in standard form that models the spider's jump. Show your work. (4 points)
Part B: Identify the focus, directrix, and axis of symmetry of the parabola. (6 points)
Answer:
A. (x - 80)² = -320(y = 20)
B. Focus: (80, -60)
Directrix: y = 100
Axis of symmetry: x = 80
Step-by-step explanation:
Part AIf the spider's movement is modeled by a parabola, and its maximum height is 20 mm halfway across a horizontal distance of 160 mm, then:
x-intercepts = (0, 0) and (160, 0)Vertex = (80, 20)Standard form of a parabola with a vertical axis of symmetry:
\(\boxed{(x-h)^2=4p(y-k) \quad \textsf{where}\:p\neq 0}\)
If p > 0, the parabola opens upwards, and if p < 0, the parabola opens downwards.
\(\textsf{Vertex}=(h, k)\)\(\textsf{Focus}=(h,k+p)\)\(\textsf{Directrix}:y=(k-p)\)\(\textsf{Axis of symmetry}:x=h\)Substitute one of the x-intercepts and the vertex into the formula and solve for p:
\(\implies (0-80)^2=4p(0-20)\)
\(\implies (-80)^2=4p(-20)\)
\(\implies 6400=-80p\)
\(\implies p=-80\)
Substitute the found value of p and the vertex into the formula to create the equation of the parabola in standard form:
\(\implies (x-80)^2=4(-80)(y-20)\)
\(\implies (x-80)^2=-320(y-20)\)
Part BGiven:
h = 80k = 20p = -80\(\begin{aligned}\textsf{Focus}&=(h,k+p)\\&=(80,20-80)\\&=(80,-60)\end{aligned}\)
\(\begin{aligned}\textsf{Directrix}:y&=(k-p)\\ \implies y&=(20-(-80))\\ \implies y&=100\end{aligned}\)
\(\begin{aligned}\textsf{Axis of symmetry}:x&=h\\ \implies x&=80\end{aligned}\)
A triangle is shown with its exterior angles. The interior angles of the triangle are angles 2, 3, 5. The exterior angle at angle 2 is angle 1. The exterior angle at angle 3 is angle 4. The exterior angle at angle 5 is angle 6. Which statements are always true regarding the diagram? Select three options. m∠5 + m∠3 = m∠4 m∠3 + m∠4 + m∠5 = 180° m∠5 + m∠6 =180° m∠2 + m∠3 = m∠6 m∠2 + m∠3 + m∠5 = 180°
A triangle is shown with its exterior angles and the interior angles of the triangle are angles 2, 3, 5. The true statements are m∠3 + m∠4 + m∠5 = 180°, m∠5 + m∠6 = 180°, and m∠2 + m∠3 = m∠6. The correct answers are B, C, and E.
We know that the sum of the measures of the interior angles of a triangle is always 180 degrees. We can use this fact, along with the properties of exterior angles of a triangle, to determine which statements are always true regarding
m∠5 + m∠3 = m∠4 This statement is not always true. It is only true in this case because angle 4 is an exterior angle at vertex 3, which means that m∠4 = m∠3 + m∠5. Therefore, m∠5 + m∠3 = m∠3 + m∠5, which simplifies to m∠5 = m∠5. However, in general, this statement is not always true.
m∠3 + m∠4 + m∠5 = 180° This statement is always true, because the sum of the measures of the three exterior angles of a triangle is always 360 degrees. Therefore, m∠3 + m∠4 + m∠5 = 360°, which simplifies to m∠3 + m∠4 + m∠5 = 180°.
m∠5 + m∠6 = 180° This statement is always true, because the sum of an exterior angle and its adjacent interior angle is always 180 degrees. Therefore, m∠5 + m∠6 = m∠1 (because angle 1 is an exterior angle at vertex 2), and m∠1 + m∠2 + m∠3 = 180° (because the sum of the measures of the interior angles of a triangle is 180 degrees). Therefore, m∠5 + m∠6 = m∠2 + m∠3, which is equal to 180° (because m∠2 + m∠3 = m∠1, and m∠5 + m∠6 = m∠1).
m∠2 + m∠3 = m∠6 This statement is not always true. It is only true in this case because angle 6 is an exterior angle at vertex 5, which means that m∠6 = m∠5 + m∠3. Therefore, m∠2 + m∠3 = m∠2 + m∠5 + m∠3, which simplifies to m∠2 + m∠3 = m∠5 + m∠3. Then, by subtracting m∠3 from both sides, we get m∠2 = m∠5. However, in general, this statement is not always true.
m∠2 + m∠3 + m∠5 = 180°: This statement is always true, because the sum of the measures of the interior angles of a triangle is always 180 degrees. Therefore, m∠2 + m∠3 + m∠5 = 180°.
Based on the above analysis, the statements that are always true regarding the diagram are
m∠3 + m∠4 + m∠5 = 180°
m∠5 + m∠6 = 180°
m∠2 + m∠3 + m∠5 = 180°
Therefore, the correct options are B, C, and E.
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Jake is comparing the prices of two mattress cleaning companies. Company A charges $30 per mattress and an additional $13 as service charges. Company B charges $28 per mattress and an additional $15 as service charges.
Part A: Write equations to represent Company A's and Company B's total mattress cleaning charges for a certain number of mattresses. Define the variable used in the equations. (1 point)
Part B: Which company would charge less for cleaning 4 mattresses? Justify your answer. (1 point)
Part C: How much money is saved by using the services of Company B instead of Company A to clean 7 mattresses?
The equations are y = 30x + 13 and y = 28x + 15. And the charge less for cleaning 4 mattresses is $127 given by company B. Then the amount of money saved to clean 7 mattresses is $22.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
Let 'x' be the number of mattresses and 'y' be the total cost. Then the equations are given as,
Company A: y = 30x + 13
Company B: y = 28x + 15
The amount for x = 4 is given as,
Company A: y = 30 (4) + 13 = $133
Company B: y = 28 (4) + 15 = $127
The amount for x = 4 is given as,
Company A: y = 30 (7) + 13 = $223
Company B: y = 28 (7) + 15 = $211
Then the amount of money saved is given as,
⇒ $233 - $211
⇒ $22
The amount of money saved to clean 7 mattresses is $22.
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A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 7.1 km apart, to be 33° and 43°, as shown in the figure.
using the law of sines the results are:
Angle B = 70°
Side a = 7.97 cm
Side c = 12.31 cm
To solve the triangle using the law of sines, we have the following information:
Angle A = 42°
Angle C = 68°
Side b = 12 cm
We want to find Angle B, side a, and side c.
First, we can find Angle B using the fact that the sum of the angles in a triangle is 180°:
Angle B = 180° - Angle A - Angle C
Angle B = 180° - 42° - 68°
Angle B = 70°
Next, we can use the law of sines to find side a and side c:
sin(A)/a = sin(B)/b = sin(C)/c
We know b = 12 cm and angles A, B, and C. Let's focus on finding side a:
sin(A)/a = sin(B)/b
We have:
sin(42°)/a = sin(70°)/12
To find side a, we rearrange the equation:
a = (sin(42°) × 12) / sin(70°)
a ≈ 7.97 cm
Now, let's find side c using the same law of sines equation:
sin(C)/c = sin(B)/b
We have:
sin(68°)/c = sin(70°)/12
Rearranging the equation, we can solve for side c:
c = (sin(68°) × 12) / sin(70°)
c = 12.31 cm
So, the results are:
Angle B = 70°
Side a = 7.97 cm
Side c = 12.31 cm
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SOMEONE PLS HELP ASAP
Gail height increased by 24 is 50
Gail height increased by 24 is 50 is g + 24 = 50
Before we begin, note the following:
a increased by b means that we will add a and b, In other words, the expression would be a + b
Now, for our problem:
We have "g" as Gail's height.
The given information is as follows:
i. Gail's height increased by 24 means that we will add g and 24.
ii. Gail's height increased by 24 is 50 means the increased height is equal to 50.
Hence, Based on the above, the expression is: g + 24 = 50
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will give brainliest
Answer:
f(x) = x^(1/2) + 3
Step-by-step explanation:
Translating to the right 3 units would change these:
0^(1/2) = 0 /// 3 units to the right would be (0,3)
1^(1/2) = 1 //// 3 units to the right would be (1,4)
4^(1/2) = 2 //// 3 units to the right would be (4,5) etc
The only way to enter Marvin’s Magic Museum is by telling Marvin a number he likes. Marvin likes the number 14, but does not like 15. He likes the number 21, but not the number 26. He likes the number 35, but not the number 39. Which of the following numbers will get you into the museum?
Telling Marvin the number 18 should get us into the museum.
What is division ?Division is a mathematical operation that involves splitting a quantity into equal parts or groups. It is the inverse of multiplication, and is used to find out how many times one number is contained within another number.
According to given information:To get into Marvin's Magic Museum, we need to figure out which number Marvin likes based on the given information.
Marvin likes the number 14, but not 15. This suggests that he likes even numbers, since 14 is even and 15 is odd.
Marvin likes the number 21, but not 26. This suggests that he likes numbers that are divisible by 3, since 21 is divisible by 3 and 26 is not.
Marvin likes the number 35, but not 39. This suggests that he likes numbers that are not divisible by 4, since 35 is not divisible by 4 and 39 is.
Putting these clues together, we can see that the number Marvin likes must be even, divisible by 3, and not divisible by 4. The only number in the list that meets these criteria is 18, since it is even, divisible by 3 (6 times), and not divisible by 4.
Therefore, telling Marvin the number 18 should get us into the museum.
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212385758487✖️827648299199375
Answer:
1.7578071e+26
Step-by-step explanation:
Q.15. Bloom Pet Supplies makes a profit of $5.50 per bag on its line of dog food. Total expenses
associated with the sale of dog food stand at $2,500 per day. If the store wants to make a profit of
at least $5,225 per day, which inequality represents how many bags of dog food d the store must
sell to meet their goal?
A. 5.50d 2,500 ≥ 5,225
B. 5.50 2,500d ≥ 5,225
C. 5.50d +2,500 ≥ 5,225
D. 5.50 +2,500d ≥ 5,225
Answer:
Let's use option C to represent the relationship between the number of bags of dog food sold and the profit made:
Profit per bag of dog food = $5.50
Total expenses per day = $2,500
The store wants to make a profit of at least $5,225 per day.
If d represents the number of bags of dog food sold, then the profit made can be represented as:
Profit = Revenue - Expenses
Revenue = Profit + Expenses
Revenue = $5.50d + $2,500
To make a profit of at least $5,225 per day, we can set up the following inequality:
$5.50d + $2,500 ≥ $5,225
Simplifying:
$5.50d ≥ $2,725
Dividing both sides by $5.50:
d ≥ 500
Therefore, the store must sell at least 500 bags of dog food per day to make a profit of at least $5,225 per day.
The correct inequality that represents this relationship is option C: 5.50d +2,500 ≥ 5,225.
A drum of water is 3/4 full. When 9 litres are drawn from it, it is half full. How much water does the drum hold what is the capacity of the drum
Answer:
OK, Here is your answer
Step-by-step explanation:
Let's assume the capacity of the drum be C litres.Since the drum is initially 3/4 full, the amount of water in it is 3/4 × C = (3/4)C liters.When 9 liters of water are drawn from the drum, the remaining amount of water is (3/4)C - 9 liters.Since the drum is now half full, the amount of water remaining in it is (1/2)C liters.Therefore, we can write the equation: (3/4)C - 9 = (1/2)CTo solve for C, let's first get rid of the fractions by multiplying both sides by 4.(3/4)C - 9 = (1/2)C → 3C - 36 = 2C → C = 36Therefore, the capacity of the drum is 36 liters.Hence, the drum holds 3/4 × 36 = 27 liters of water initially and after 9 liters of water are drawn, the remaining amount of water in it is 27 - 9 = 18 liters.
Answer:
18 Lieters.
Step-by-step explanation:
found the answer in his answer. ↑↑↑↑
2 questions on percentage giving out brainlist ❤️
Answer:
2nd one is a
Step-by-step explanation:
(36^5-6^9)(38^9-38^8) is divisible by 30 and 37 but the answer is _ x 30 x 37
it is true that the expression (36⁴−6⁹)(38⁹−38⁸) is divisible by 30 and 37
Carl Friedrich Gauss introduced the fundamental principle of number theory in 1801, which states that any integer higher than one can be expressed as the product of prime numbers only in one way. Number theory is also referred to as arithmetic. Addition, subtraction, multiplication, and division are the four foundational operations in mathematics. Below, a quick discussion of all these operations is provided.
The expression is given as:
(36⁴−6⁹)(38⁹−38⁸)
Express 36 as 6²
(36⁴ - 6⁹) = (6²)⁴ - 6⁹
= 6⁸ - 6⁹
= 6⁷(6 - 6²)
= 6⁷(6 - 36)
= 6⁷(-30)
=(38⁹ - 38⁸)
= 38⁸(38 - 1)
= 38⁸(37)
=(36⁴−6⁹)(38⁹−38⁸)
=6⁷(-30) × 38⁸(37)
=(30)(37)(-6⁷)(38⁸)
Clearly, 30 and 37 are factors, so divisible by them.
The complete question is-
Prove that the value of the expression: b (36^5−6^9)(38^9−38^8) is divisible by 30 and 37.
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how to write expression for The product of ten less than a number and the number
Answer:
x-10
Step-by-step explanation:
ten is less than x
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Harry is paid £8.60 per hour for the first 30 hours he works each week. After 30 hours he is paid 1 and a half times the hourly rate.
Last week Harry worked 33 hours. He was also paid a bonus of 1/10 of his earnings
Calculate how much in total Harry was paid last week
Answer:
1404.81
Step-by-step explanation:
1277.1 +127.71 = i read it wrong the first time sorry
The total amount paid to harry in past week, is 299.28.
What is amount?Amount is the sum or the total value.
For example, if A purchase 2 kg rice at the price of 40 rs/kg, the amount will be 40×2= 80 rs.
Given that,
The amount paid to Harry for 1 hour = $8.60
Since, Harry worked for 33 hours,
So, The amount paid to Harry for 33 hours = 8.60×33=283.8
Harry gets half times more amount than hourly rate and also gets bonus for last 3 days
So for last 3 days the extra amount paid to Harry
= 3×1/2×8.60+3×1/10×8.60
= 12.9+2.58
=15.48
So the total amount paid to harry = 283.8+15.48=299.28
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HELP! WILL GIVE BRANLIEST!
Answer: I believe it is 108 good luck girl
one card is drawn from a pack of 52cards each of the 52 cards being equally likely to be drawn. what is the probability that the card drawn is a king?
The probability of drawing a king from a standard deck of 52 cards is 1/13.
In a standard deck of 52 playing cards, there are four kings: the king of hearts, the king of diamonds, the king of clubs, and the king of spades.
To find the probability of drawing a king, we need to determine the ratio of favorable outcomes (drawing a king) to the total number of possible outcomes (drawing any card from the deck).
The total number of possible outcomes is 52 because there are 52 cards in the deck.
The favorable outcomes, in this case, are the four kings.
Therefore, the probability of drawing a king is given by:
Probability = (Number of favorable outcomes) / (Number of possible outcomes)
= 4 / 52
= 1 / 13
Thus, the probability of drawing a king from a standard deck of 52 cards is 1/13.
This means that out of every 13 cards drawn, on average, one of them will be a king.
It is important to note that the probability of drawing a king remains the same regardless of any previous cards that have been drawn or any other factors.
Each draw is independent, and the probability of drawing a king is constant.
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Help me I’m not sure the answe
Answer:
i believe it would be the last option.
Step-by-step explanation:
The point P=(1/2,y)lies on the unit circle shown below. What is the value of y in simplest form?
The value of y in simplest form for the point P = (1/2, y) lying on the unit circle is y = ± √(3)/2.
To find the value of y in simplest form for the point P = (1/2, y) lying on the unit circle, we can use the equation of the unit circle, which states that for any point (x, y) on the unit circle, the following equation holds: x^2 + y^2 = 1.
Plugging in the coordinates of the point P = (1/2, y), we get:
(1/2)^2 + y^2 = 1
1/4 + y^2 = 1
y^2 = 1 - 1/4
y^2 = 3/4.
To simplify y^2 = 3/4, we take the square root of both sides:y = ± √(3/4).
Now, we need to simplify √(3/4). Since 3 and 4 share a common factor of 1, we can simplify further: y = ± √(3/4) = ± √(3)/√(4) = ± √(3)/2.
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Katrina is making vegetable soup. Her recipe
calls for 4 pounds of potatoes. She has 6
pounds of potatoes. She is making 8 batches
of the soup.
How many pounds of potatoes will she
need?
Does she have enough pounds of potatoes?
Yes
No
Answer:
633637e7sysuy
Step-by-step explanation:
ee7wuqhqwhj
Answer:
3/4 X 8 = 6 pounds of potatoes.
Step-by-step explanation:
You need to attach the but based on my estimation I got 6lb potatoes.
1.3.IP-28
Question Help
The Bakers recently bought a new couch for $3,671. They paid for it in 2 installments. In their first
installment, they paid $1,836. How much did they pay in their second installment? Write an equation
to model the problem.
Step-by-step explanation:
Find the difference
3,621 - 1,836 = 1,785
They payed $1,785 dollars in the second installment.
The diagram shown is two intersecting lines. The measure of 5 is 47°.
Answer:
a) 37º
b) 143º
c) 2x - 5 = 143
Step-by-step explanation:
a) Angles 5 and 7 are vertical angles and therefore have the same measurements.
b) Angles 5 and 6 form a straight line and are therefore supplementary (add up to 180º). 180 - 37 = 143.
c) We found the measure of angle 6 is 143º in part b. We can set that equal to 2x - 5. Therefore the equation is 2x - 5 = 143.
Will mark brainliest!!!
Solve for x
Answer:
2
Step-by-step explanation:
I need help with this homework packet
a. The probability that a yellow disk will be selected is 1 out of 5.
b. It is **likely** that a yellow disk will be randomly selected from the bag.
What is the probability that a yellow disk will be selected?a. The probability that a yellow disk will be selected can be calculated by;
P = 5 / 25
P = 1/5
The probability of randomly selecting a yellow disk is calculated by dividing the number of yellow disks by the total number of disks. In this case, there are 5 yellow disks and 25 total disks, so the probability is 5/25 = 1/5. This means that there is a 20% chance of randomly selecting a yellow disk.
b. The likelihood of randomly selecting a yellow disk is described as "likely" because the probability is greater than 1/10. A probability of 1/10 or less is considered "unlikely", while a probability of greater than 1/10 is considered "likely".
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your monthly finance charge is based on your interest rate and your balance, the higher your interest, the higher your finance will be
Answer:
you would have to add it up
Step-by-step explanation:
when you add the part that you have to add you get your answer
A study of 420,046 cell phone users found that 140 of them developed cancer of the brain or nervous system. Prior to the study of the cell phone use, the rate of such cancer was found to be .0347% for those not using cell phones.
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: False study.
Explanation: This is not true, and is purely by chance.
I hope this helped!
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- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Select the correct answer.
Answer:it might be A