Answer:
Reflection with respect to the x axis
Step-by-step explanation:
Reflection with respect to the x avis, or horizontal reflection.
PLEASE ANSWER!!!!!!!!! FASTEST GETS BRAINLIEST
what is the period of the graph of y=5 sin (pi(x)+4
Answer:
Step-by-step explanation: Hope this helps
For each triangle, check all that apply.
Triangle A
Triangle B
Triangle C
13
14
les
7
12
14
14
14
ard
Scalene
Isosceles
Equilateral
Scalene
Isosceles
Equilateral
Scalene
Isosceles
Equilateral
Answer:
A Scalene
B Isosceles
C Equilateral
Explanation: Interior angles are all different To see why this is so, imagine two angles are the same. The triangle would then be an Isosceles triangle, which has two sides the same length. Similarly, if all three angles are the same, it would be an equilateral triangle and all three sides would be the same length.
A store is having a sale in which all items are marked30%off.4a.) Which equation represents the selling price,s, in dollars, of an item originally pricedpdollars after a markdown of30%?
Answer:
p=0.7s
Step-by-step explanation:
not 100% sure
ramu swims a distance of 3 km each upstream and downstream. The total time taken is one hour. if the speed of the stream is 4km/h, then find the speed of ramu in still water.
(a) 12km/h
(b) 8km/h
(c) 9km/h
(d) 6km/h
please answer :)
Answer:
:5 or 6km per hour is your answer.
Please help!
Task is simplify expressions.
This is direct image from teacher.
2.2. South African friends of the Netherlands couple departed from Pretoria at 04h30am to spend the holiday with them. Their journey is described as follows: On their way from Polokwane they took the turn-off to the R521 route. Rest for 45 minutes at Dendron and took 15 minutes to do someshopping and till up the car's fuel tank at All days. 2.2.1. If the scale of the map is given as 1: 3 000 000 and the distance measured on the map between Beitbridge and Musina is 1,3 cm. calculate (in km) the actual distance between Beitbridge and Musina. ● (3)
The actual distance between Beitbridge and Musina is 3,900,000 kilometers.
To calculate the actual distance between Beitbridge and Musina, given the scale of the map and the measured distance on the map, we can use the concept of scale.
The scale of the map is given as 1:3,000,000, which means that 1 cm on the map represents 3,000,000 cm in real life.
The measured distance on the map between Beitbridge and Musina is 1.3 cm.
To find the actual distance, we can set up a proportion using the scale:
1 cm on the map / 3,000,000 cm in real life = 1.3 cm on the map / x km in real life.
Simplifying the proportion, we have:
1 / 3,000,000 = 1.3 / x.
Cross-multiplying, we get:
x = (1.3 * 3,000,000) / 1.
x = 3,900,000 / 1.
x = 3,900,000 km.
The actual distance between Beitbridge and Musina is 3,900,000 kilometers.
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Which statement forms part of cell theory?
A.
Cell organelles are capable of reproducing themselves.
B.
Cells differ in shape, but they have identical components.
C.
All cells begin life as prokaryotic cells.
D.
All living things are made up
of cells.
Answer:
D. All living things are made up of cells.
Step-by-step explanation:
D. All living things are made up of cells.
O The cell theory is a widely accepted principle of biology. Scientists that contributed to the cell theory include; Theodor Schwann, Matthias Schleiden, and Rudolph Virchow.
The cell theory states that;
O All living organisms are made up of cells and they may be unicellular or multicellular.
O The cell is the basic structural and functional unit of life.
Cells arise from pre-existing cells.
Can someone plz help me with this one problem plzzzzz I’m being timed!!!!!!!
Answer:
3 = 2
5 = 4
6 = 5
Step-by-step explanation:
r the second # = p the first # - 1
Answer:
3 - 1 = 2
4 - 1 = 3
5 - 1 = 4
6 - 1 = 5
I think this is the answer.
Step-by-step explanation:
STEP BY STEP EXPLANATION SIL-VOUS PLAIT
Answer:
Step-by-step explanation:
interjection French.
if you please; please.
Which is the correct solution to -6x < 18?
Let's begin by identifying key information given to us:
\(\begin{gathered} -6x<18 \\ \text{Divide both sides by ''-6'', we have:} \\ \frac{-6}{-6}x<\frac{18}{-6} \\ x<3 \end{gathered}\)solve this system of equations using the substitution method
y=x+7
-2x-11=y
Answer:
x=-6, y=1
Step-by-step explanation:
Let's solve your system by substitution.
y=x+7;−2x−11=y
Step: Solve y=x+7 for y:
y=x+7
Step: Substitute x+7 for y in −2x−11=y:
−2x−11=y
−2x−11=x+7
−2x−11+−x=x+7+−x(Add -x to both sides)
−3x−11=7
−3x−11+11=7+11(Add 11 to both sides)
−3x=18
−3x/ −3 = 18/ −3 (Divide both sides by -3)
x=−6
Step: Substitute−6 for x in y=x+7:
y=x+7
y=−6+7
y=1 (Simplify both sides of the equation)
Answer:
x=−6 and y=1
A helicopter is sighted at the same time by two ground observers who are 5 miles apart, both ahead of the helicopter and in its direction of travel. They report angles of elevation of 19.5° and 31.2° to the helicopter. Find the distance from the helicopter to the further observer, to the nearest tenth of a mile.
Answer:
The distance from the helicopter to the further observer is:
d = 12.77 miles
Step-by-step explanation:
The observer with 19.5° of elevation will be denoted by 1
The observer with 31.2° of elevation will be denoted by 2.
Here we have two right triangles. Both of them have the same opposite sides, so will be useful to use the tangent function.
For the second observer:
\(tan(31.2)=\frac{h}{x}\) (1)
Where:
h is the opposite sidex is the adjacent side (distance from the observer 2 to the point where the angle of elevation is 90° )For the first observer:
\(tan(19.5)=\frac{h}{5+x}\) (2)
Where:
h is the opposite side5+x is the adjacent side (distance from the observer 1 to the 90° elevation point, 5 miles is the distance between observes )Let's find x from equations (1) and (2). Both of them have the variable "h" so we can equal these equations.
\(xtan(31.2)=(5+x)tan(19.5)\)
\(x(tan(31.2)-tan(19.5))=5tan(19.5)\)
\(x=\frac{5tan(19.5)}{tan(31.2)-tan(19.5)}\)
\(x=7.04\: miles\)
Now, if we use the right triangle with 19.5° of elevation, the hypotenuse will be the distance from the helicopter and the further observer (let's call d).
Let's use the cosine function to find d.
\(cos(19.5^{\cric})=\frac{5+x}{d}\)
\(d=\frac{5+7.04}{cos(19.5^{\cric})}\)
\(d=12.77\: miles\)
I hope it helps you!
a proportion is a special case of a mean when you have a dichotomous population. true false
Answer:true
Step-by-step explanation:
Which statement best describes the intersection of three planes?
A) The planes could form one or two lines.
B) The planes could form one, two, or three lines.
C) The planes will form two lines.
D) The planes could form one, two, or three lines, or they could intersect at exactly one point.
Answer:
D
Step-by-step explanation:
from what I could tell, it sounds like D would be correct
A marketing researcher wants to estimate the mean amount spent ($) on a certain retail website by members of the website's premium program. A random sample of 90 members of the website's premium program who recently made a a the purchase on the website yielded a mean of $1700 and a standard deviation of $150. . Construct a 99% confidence interval estimate for the mean spending for all shoppers who are members of the website's premium program. ≤μ≤
The 99% confidence interval estimate for the mean spending for all shoppers who are members of the website's premium program is (1516.69, 1883.31).
Given that the sample size (n) is 90, sample mean (x) is $1700, and the sample standard deviation (s) is $150, we need to calculate a 99% confidence interval for the true mean spending (μ) for all shoppers who are members of the website's premium program.
The formula for calculating the confidence interval for population mean is as follows:
CI = x ± z(σ/√n)
where,
CI = Confidence Interval
x = Sample mean
z = Z-score at a 99% confidence level
σ = Standard deviation
n = Sample size
σ/√n = Standard error of the mean
Substitute the given values in the formula and solve it:
x = 1700, σ = 150, n = 90
Standard error of the mean = σ/√n = 150/√90 = 50√2 (rounded to two decimal places)
The z-score for a 99% confidence interval is 2.58 (from z-tables or calculator).
Substitute the values in the formula:
CI = 1700 ± 2.58 (50√2) ≈ 1700 ± 183.31 ≈ (1516.69, 1883.31)
Therefore, the 99% confidence interval estimate for the mean spending for all shoppers who are members of the website's premium program is (1516.69, 1883.31).
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Please help with test offering big points pt 3
Answer:
25
Step-by-step explanation:
because if you do 1000 divided buy 25 its 69420 so if you do 69420 divided by 69420 its 1 and 1x1000 its 1000 divided by 54 its 25 so its 25
plz need help now plz 11 points
Answer:
137 square feet
Step-by-step explanation:
To find the area of this figure, you will need to combine the area of the triangle and the rectangle. The area formula of a triangle is A = 1/2lw (l = length, w = width). You just find the area the same way you would the rectangle and the divide it by 2. 6 times 3 is 18, and 18 divided by 2 is 9. The area of the triangle is 9 square feet. To find the area of the rectangle, multiply the length and the width (16 and 8). The product is 128. 128 + 9 = 137.
an article gave the following observations on a maximum concrete pressure (kn/m^2): 33.3 41.8 37.4 40.2 36.7 39.1 36.2 41.8 36.0 35.2 36.7 38.9 35.8 35.2 40.1 using a normal probability plot, we ascertain that it is plausible that this sample was taken from a normal population distribution. calculate an upper confidence bound with confidence level 95% for the population standard deviation of maximum pressure.
A mean of a normal distribution's upper bound of a 95% confidence interval is 58.11.
What does "confidence interval" mean?This confidence interval would just be constructed using the Z or t distribution depending on the confidence level that was selected and the standard error of the point estimate.The standard error of the point estimate will be used to account for the variation in the important finding for every one of the outcome measures.For the given question,
sample mean μ = 554.4/15 = 36.96standard deviatio σ = 41.8sample size n = 15confidence interval = 95%The confidence bound's upper limit (UCB) is determined as follows:
UCB = μ + z(α/2)×σ/√n
Now, α/2 = (1 - 0.95)/2
α/2 = 0.025
z(α/2) = 1.96 (obtain from t-distribution table for degree of freedom)
Put the values in the formula,
UCB = μ + z(α/2)×σ/√n
UCB = 36.96 + 1.96×41.8/√15
UCB = 58.11
As a result, 58.11 is the upper bound of a 95% confidence interval for the mean of a normal distribution.
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a one-to-one relationship between two tables is indicated by a
A one-to-one relationship between two tables is indicated by a primary key in one table being used as a foreign key in the other table. It means each record in one table corresponds to exactly one record in the other table.
In a one-to-one relationship between two tables, a primary key in one table is used as a foreign key in the other table. This relationship is established to ensure that each record in one table corresponds to only one record in the other table.
For example, in the "Customers" and "Orders" tables, each customer can have only one order, and each order can belong to only one customer. The primary key "CustomerID" in the "Customers" table would be used as the foreign key in the "Orders" table.
This indicates that each record in the "Orders" table is associated with a specific customer in the "Customers" table, creating a one-to-one relationship. For example, in the "Customers" and "Orders" tables, each customer can have only one order, and each order can belong to only one customer.
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jane is planning to offer a groupon for inner tube rentals that she will distribute on hot, sunny, summer days by the river that runs through her town. based on her past experience with groupon, she has assigned the following probability distribution to the number of tubes she will rent on a randomly selected day. if jane would like her expected revenue to be at least $390 per day, what should the groupon price be? (round your answer up to the nearest whole dollar amount.)
The price of Groupon for revenue of $300 is $4 if the expected revenue is at least $390 per day.
Probability is assigned as
x =30, 60, 120, 180
P(x) = 0.10,0.40, 0.40, 0.10
Expected sales volume:
Number of tubes x =30, 60, 120, 180
Probability P(x)= 0.10,0.40, 0.40, 0.10
Expected values are 3, 24,48,18
Total = 93 tubes
Groupon price = $390/$93 = $4.19
Jane's price for each Groupon is the daily rental income divided by the expected number of tubes rented per day. The expected number of tubes is derived by multiplying the expected number of each tube by its probability and then summing the results.
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When Lenina says, "Never put off until tomorrow the fun you can have today,," Bernard says, "Two hundred repetitions, twice a week from fourteen to sixteen and a half." What does he mean by this reply?
In the novel "Brave New World," when Lenina states, "Never put off until tomorrow the fun you can have today," Bernard replies, "Two hundred repetitions, twice a week from fourteen to sixteen and a half"
This comment means that he is promoting individuality. Bernard is the most noticeable of all the characters who consider the worth of individuality. He is small and awkward, and he is unhappy with the system's blind devotion to conformity and pleasure.
His rejection of this way of life is most visible in his reluctance to indulge in promiscuous sex and drugs, which are fundamental components of the citizens' happy lives.A major theme in Brave New World is the rejection of individuality in exchange for happiness.
The residents of the World State are only concerned with their personal comfort and pleasure, which they gain through mind-numbing activities like sex and drugs.
Bernard, on the other hand, rejects these activities and prefers solitude and his own thoughts. He thinks that individuality is essential, and he refuses to give in to the conditioning that the other citizens accept.
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Find angle x giving your answer to one decimal place
The value of angle x in decimal place is 57.8°.
What is decimal place?A decimal number's digits are assigned a place value according to a chart that displays decimal place values. A digit in a number's place value is, as far as we are aware, its numerical value. The correct placement of each digit in a decimal number is therefore determined using decimal place value charts, just like with other place value diagrams. In this chart, the place values of the digits before and after the decimal point are shown.
Draw the altitude of the triangle
We know that
sinθ = Opposite / Hypotenuse
sin 38° = y/11
y = 11 sin 38°
y = 6.77
sin(x) = y/8
sin(x) = 6.77/8
sin(x) = 0.84625
sin(x) = 57.8°
Thus, the value of angle x in decimal place is 57.8°.
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This year, the ACT score of a randomly selected student is normally distributed with a mean of 24.4 points and a standard deviation of 4.7 points. Let XX be the ACT score of a randomly selected student and let ¯¯¯XX¯ be the average ACT score of a random sample of size 16.
1. Describe the probability distribution of XX and state its parameters μμ and σσ:
The probability distribution of the sample mean is approximately normal, with mean of 24.4 points and standard deviation of 1.175 points.
How to obtain the distribution?By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation given by the equation presented as follows: \(s = \frac{\sigma}{\sqrt{n}}\).
The mean is the same as the population mean, of 24.4 points, while the shape is approximately normal.
The standard error is given as follows:
\(s = \frac{4.7}{\sqrt{16}} = 1.175\)
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Priya uses 1 tablespoon of honey for every 3.75 cups of flour to make bread dough
Complete the table,
honey (tbsp)
flour (c)
3.75
8
11
18.75
5
Answer:
The first one you just put 1. 8 would be 30 and 11 would be 41.25
Step-by-step explanation:
Multiply the cup which is 3.75 by the number of tbsp
Rewrite the following equation in slope-intercept form 9x + 7y = -12 please put how to do it too im so confused
Answer:
7y = -9x - 12
Step-by-step explanation:
Algebra 2 - U2 L2 - Multiplying and Dividing Radical Expressions
To multiply radical expressions with the same index, we use the product rule for radicals. \(\sqrt[n]{A}.\sqrt[n]{B} = \sqrt[n]{A.B}\)
To divide radical expressions with the same index, we use the quotient rule for radicals. \(\frac{\sqrt[n]{A} }{\sqrt[n]{B} } =\sqrt[n]{\frac{A}{B} }\)
Multiplying Radical Expressions :
Example,
given: Multiply: \(\sqrt[3]{12} .\sqrt[3]{6}\)
Apply the product rule for radicals, and then simplify.
\(\sqrt[3]{12}.\sqrt[3]{6}=\sqrt[3]{12.6}\)
\(=\sqrt[3]{72}\\=\sqrt[3]{2^{3} .3^{2} } \\=2\sqrt[3]{3^{2} } \\=2\sqrt[3]{9}\)
Dividing Radical Expressions
Example,
given: Divide: \(\frac{\sqrt[3]{96} }{\sqrt[3]{6} }\)
In this case, we can see that 6 and 96 have common factors. If we apply the quotient rule for radicals and write it as a single cube root, we will be able to reduce the fractional radicand.
\(\frac{\sqrt[3]{96} }{\sqrt[3]{6} } =\sqrt[3]{\frac{96}{6} }\)
\(=\sqrt[3]{16} \\=\sqrt[3]{8.2} \\=2\sqrt[3]{2}\)
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Pls help me i need help iwiill give you points
Answer:
The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area
Step-by-step explanation:
even though emilio writes neatly and legibly, it takes him a very long time to write a few sentences. which strategy may help emilio to write more fluently?
One strategy that may help Emilio write more fluently is practicing speed writing or shorthand techniques.
Practicing speed writing or shorthand techniques can help Emilio increase his writing speed without sacrificing legibility. Speed writing involves using abbreviations, symbols, and shortcuts to represent words or phrases, allowing for faster transcription of thoughts onto paper.
Shorthand systems, such as Gregg shorthand or Pitman shorthand, provide structured methods for condensing words and phrases into simplified symbols.
By learning and practicing speed writing or shorthand techniques, Emilio can improve his writing efficiency and reduce the time it takes to write a few sentences. This strategy allows him to maintain neatness while increasing his writing speed, enabling him to express his thoughts more fluently.
With regular practice and familiarity, Emilio will become more comfortable with the shorthand system and experience a significant improvement in his writing speed and fluency.
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a computer monitor has a width of 15.51 inches and a height of 11.63 inches. what is the area of the monitor display in square meters?
The area of the monitor display in square meters is 0.1158, which is calculated by converting the width and height from inches to meters and then multiplying them.
To calculate the area of the monitor display in square meters, we need to convert the measurements from inches to meters.
First, let's convert the width:
15.51 inches = 0.3937 meters
Next, let's convert the height:
11.63 inches = 0.2946 meters
Now we can calculate the area:
Area = width x height
Area = 0.3937 meters x 0.2946 meters
Area = 0.1158 square meters
Therefore, the area of the monitor display in square meters is 0.1158.
The area of the monitor display can be calculated by multiplying the width and height of the monitor. However, as the given measurements are in inches, we need to convert them to meters to calculate the area in square meters. We converted the width to 0.3937 meters and the height to 0.2946 meters. Then, we calculated the area by multiplying the width and height, which gave us a result of 0.1158 square meters. Therefore, the area of the monitor display in square meters is 0.1158.
The area of the monitor display in square meters is 0.1158, which is calculated by converting the width and height from inches to meters and then multiplying them.
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If r = 6 units and h = 9 units, what is the volume of the cylinder shown above? Use 3.14 for .
A.
1,017.36 cubic units
B.
1,526.04 cubic units
C.
452.16 cubic units
D.
339.12 cubic units
Answer:
A) 1017.36 in³
Step-by-step explanation:
volume of a cylinder = \(\pi r^2h\)
(where r is the radius and h is the height)
Given:
r = 6h = 9\(\pi =3.14\)Substituting given values in the equation:
\(\implies V = 3.14 \cdot 6^2 \cdot 9\)
⇒ V = 1017.36 in³