♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
First I wanna tell u , DE means a straight line between the two points of D and E ;
Thus we want to find the distance between D & E .
We have following equation to find :
\(DE = \sqrt{ ({y(D) - y(E)})^{2} + ({x(D) - x(E)})^{2} } \\ \)
Now just need to put the coordinates in the above equation.
Let's do it....
\(DE = \sqrt{ ({4 - ( - 6)})^{2} + ({ - 3 - ( - 7)})^{2} } \\ \)
\(DE = \sqrt{ ({4 + 6})^{2} + ({ - 3 + 7})^{2} } \\ \)
\(DE = \sqrt{ {10}^{2} + {4}^{2} } \\ \)
\(DE = \sqrt{100 + 16} \)
\(DE = \sqrt{116} \)
\(DE = 10.77\)
\(DE = 10.8\)
Done...
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Ken's car gets 33 miles per gallon. One gallon of gas
costs $3,45
What is the cost per mile?
Round to nearest tenth.
Answer:
11385
Step-by-step explanation:
multiply
12. The null and alternative hypotheses divide all possibilities into a. c. Two sets that overlap Two sets that may or may not overlap b. Two non-overlapping sets d. As many sets as necessary to cover all possibilities 13. Which of the following is true of the null and alternative hypotheses? a. Exactly one hypothesis must be true c. It is possible for both hypotheses to be true b. both hypotheses must be true d. It is possible for neither hypothesis to be true
In hypothesis testing, the null hypothesis (H0) and the alternative hypothesis (Ha) are used to assess the validity of a claim or statement about a population parameter.
Here are the answers to the given questions:
12. The null and alternative hypotheses divide all possibilities into:
b. Two non-overlapping sets
The null hypothesis and the alternative hypothesis are mutually exclusive and collectively exhaustive.
They represent two distinct possibilities or explanations regarding the population parameter being tested.
These sets do not overlap, meaning that an observation or outcome can only fall into one of these two categories.
13. Which of the following is true of the null and alternative hypotheses?
d. It is possible for neither hypothesis to be true
In hypothesis testing, the null hypothesis represents the default position or the status quo. It assumes that there is no significant difference or effect present in the population.
The alternative hypothesis, on the other hand, contradicts the null hypothesis and suggests that there is a significant difference or effect.
It is important to note that the null hypothesis is either rejected or failed to be rejected based on the evidence provided by the data.
The alternative hypothesis is not proven or accepted; instead, it is typically accepted by default when the null hypothesis is rejected.
Therefore, it is possible for neither hypothesis to be true if there is insufficient evidence to support the rejection of the null hypothesis. In such cases, no strong conclusion can be made based on the available evidence.
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I need answer asap pls
Answer: Hey man, go with your guess, you might be wrong you might be correct.
Step-by-step explanation: But I wouldn't pick or because if you're saying or, you're basically asking the question to the original question so I would pick one of the and's
Answer:
b < -7 or b > 7
Step-by-step explanation:
b is surrounded by absolute value bars, which means that whether the value of b is negative or positive, the bars will make it positive. |b| is said to be greater than 7, so the value of b must be:
less than -7 (it can be -8, -9, -10, ...) because the absolute value bars will make it positive.
&
greater than 7 (it can be 8, 9, 10) because it will stay positive anyway.
Therefore, the second answer choice is correct.
I hope this helped! :)
Please answer this fast. This was due October 6th and I need to get it done!!!!! The energy E of a moving object is called its
kinetic energy. It is calculated using the formula E = { mv2,
where m is the object's mass in kilograms and v is its
speed in meters per second. The units of kinetic energy are
kilograms - meters
abbreviated as kg • m²/s2.
seconda
a. Solve the given formula for m.
b. What is the mass of an object moving at 10 m/s with a kinetic
energy of 2500 kg · mº/s2?
. n
Answer:
Question a:
\({ \rm{kinetic \: energy = \frac{1}{2} m {v}^{2} }} \\ \)
• then let's make m the subject:
\({ \rm{E = \frac{1}{2}m {v}^{2} }} \\ \\ { \rm{m {v}^{2} = 2E }} \\ \\ { { \green{ \boxed{ \boxed{ \bf{m = \frac{2E}{ {v}^{2} } }}}}}} \\ \)
Answer: m = 2E/v²
Question b:
\({ \rm{m = \frac{2E}{ {v}^{2} } }} \\ \\ { \rm{m = \frac{(2 \times 2500)}{ {10}^{2} } }} \\ \\ { \rm{m = \frac{5000}{100} }} \\ \\ { \boxed{ \boxed{ \rm{ \: m = 50 \: kg \: }}}}\)
Answer: mass is 50 kg
Surface area of the composite solid
The area of the composite solid is 602.88m²
What are composite solids?A composite solid is a solid that is composed, or made up of, two or more solids.
The solid consist of two cones. one big and one small cone
Area of a cone can be expressed as;
A = πr² + πrl
A = πr(r+l)
For the Big cone
A = πr(r+l)
A = 3.14 × 8 ( 8+10)
A = 25.12 × 18
A = 452.16m²
Area of the small cone
A = 3.14 × 4( 4 + 8)
A = 12.56 × 12
A = 150.72m²
Therefore the area of the composite solid
= 452.16 + 150.72
= 602.88 m²
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A canoe rental service charges a $20 transportation fee and $30 dollars an hour to
rent a canoe. Write and graph an equation representing the cost, y, of renting a
canoe for × hours.
The equation representing the cost of the canoe rental company is given by y = 30x + 20 .
Let the total cost for renting a canoe be y.
Let the canoe is being rent for x hours.
now the cost for renting the canoe at 30 dollars per hour = 30x
Total cost of renting the canoe = 30x + 20
But the total cost is y.
Hence the equation to represent this situation is given by
y = 30x + 20 which is a straight line of the form y = mx +c, where the slope is 30 and the y-intercept is 20.
Now we will plot the graph for this equation.
At x = 0 , y = 20
At x = 1 , y = 50
At x= -3 , y = -70
Hence the graph of the line passes through these points on the cartesian plane.
The graph of the line is attached below.
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What is the area of the trapezoid?
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 440 ft^2
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer:
488
Step-by-step explanation:
first,you have to add both of the bases.
39+17=56
then, you have to divide it by 2
56÷2=28
lastly, you have to multiply it by the height
28×16=448
hope this helps
Three pounds of oranges cost $4.50 complete the table
What value of x makes this equation true?
12x - 15 = 6 - 3x
F: 7/3
G: 7/5
H: 5/7
J: 3/7
Answer:
G: 7/5
Step-by-step explanation:
12x - 15 = 6 - 3x
12x + 3x = 6 + 15
15x = 21
x = 21/15
x = 7/5
to make sure that a few unusual responses don’t skew results or lead to inaccurate judgements, a data analyst focuses on what element of the data collection?
The component of the data that a data analyst is most interested in is sample size.
Given,
To prevent results from being skewed or causing incorrect conclusions, we must identify the data element on which the data analyst should concentrate;
The data analyst;
A data analyst looks at data to uncover useful consumer insights and possible applications for the knowledge. They also tell the management of the business as well as other stakeholders of this information.
Although it is advisable for data analysts to have a foundational knowledge of statistics and mathematics, many of their responsibilities can still be carried out without it. However, knowledge in statistics, linear algebra, and calculus is often required for data analysts.
Here,
A data analyst's primary interest in the data is sample size
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There are 5 blue marbles, 11 green marbles and
4 red marbles in a box. What percent of the
marbles are green?
a. 100
b. 80
c. 55
d. 20
Step-by-step explanation:
step by step by solutions are given
check it
hope you like the answer
which ordered pair is a solution of the equation ?
Answer:
neither
Step-by-step explanation:
both answers is not the solution
of the x would be: (74,0)
and from the y is: (0,-7)
Write a story that can be represented using the equation y=x+1/5x
A story that can be represented using the equation y=x+1/5x is "John has an apple and he cut another apple into 5 equal parts and took on part. What's the rural fraction of apple that he has?
How to illustrate the equation?An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario. It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.
In this case, if John has an apple and he cut another apple into 5 equal parts and took on part.
This can be illustrated as:
y = x + 1/5x
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What is the measure of SQ?
1. 95
2. 190
3. 265
4. 360
Answer:
The measure of arc SQ is 95° ⇒ (1)
Step-by-step explanation:
The measure of any circle is 360°The measure of the subtended arc to an inscribed angle is twice the measure of this angleIn the given circle
∵ S lies on the circumference of the circle
∴ ∠QSR is an inscribed angle
∵ ∠QSR is subtended by arc QR
→ By using the 2nd rule above
∴ m arc QR = 2 × m∠QSR
∵ m∠QSR = 95°
∴ m arc QR = 2 × 95
∴ m arc QR = 190°
→ By using the 1st rule above
∵ m of the circle = m arc QR + m arc SQ + m arc SR
∵ m arc SR = 75° and m arc QR = 190°
→ Substitute them in the equation above
∴ 360 = 190 + m arc SQ + 75
→ Add the like term in the right side
∴ 360 = 265 + m arc QS
→ Subtract 265 from both sides
∵ 360 - 265 = 265 - 265 + m arc SQ
∴ 95° = m arc SQ
∴ The measure of arc SQ is 95°
What are the roots of the quadratic equation x^2 - 10 + 125? Please help! I'll give brainly to whoever gets the correct answer
A. x= -5 ± 5√6
B. x= -5 ± 10i
C. x= 5 ± 5√6
D. 5 ± 10i
Answer:
D) \(x=5\pm10i\)
Step-by-step explanation:
\(x^2-10x+125=0\)
\(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)
\(x=\frac{-(-10)\pm\sqrt{(-10)^2-4(1)(125)}}{2(1)}\)
\(x=\frac{10\pm\sqrt{100-500}}{2}\)
\(x=\frac{10\pm\sqrt{-400}}{2}\)
\(x=\frac{10\pm20i}{2}\)
\(x=5\pm10i\)
Therefore, the correct option is D
The level of significance in hypothesis testing is the probability of:A. Accepting a true null hypothesisB. Accepting a false null hypothesisC. Rejecting a true null hypothesisD. None of these alternatives is correct
there is a 5% probability of rejecting a false null hypothesis and hence c is correct option
Simply put, probability is the likelihood that something will occur.
When we don't know how an event will turn out, we can discuss the likelihood or likelihood of several outcomes. Statistics is the study of events that follow a probability distribution.
Testing hypotheses is a crucial component of empirical research and evidence-based medicine. A well-developed hypothesis is only half the solution to the research problem. Working understanding of fundamental statistical principles is preferred for this, as well as subject-specific knowledge gleaned through a thorough survey of the literature.
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BD is the angle bisector of ABC. Find m ABC and m DBC. (Picture attached!) Thank you!!!
Answer:
60 Degree,30 degree
Step-by-step explanation:
BD is bisector of ∠ABC
=> ∠ABD = ∠DBC
=> 3x = x + 20
=> 3x - x = 20
=> 2x = 20
=> x = 20/2
=> x = 10
Now,
∠ABD = ∠DBC = x + 20 = 10 + 20 = 30 Degree
∠ABC = ∠ABD+∠DBC = 30+30 = 60 Degree
Please help! Three one-inch cubes are stacked. What is the surface area of the composite figure that is formed?
Answer:
i think it would just be 3
Step-by-step explanation:
since the surface area of one cube is 1 (1x1x1) and then there is 2 more, you would do 1+1+1 so yea i think its three
come up with a situation that you believe could follow a binomial distribution. explain why you believe it is reasonable to expect this situation to fit a binomial distribution.
A situation that could follow a binomial distribution is the number of heads that occur when flipping a "fair-coin" multiple times.
A "Binomial-Distribution" is defined as a probability distribution that describes the number of successes in a fixed number of independent trials, where each trial has the same probability of success.
In this case, flipping a "fair-coin" is an independent trial with two possible outcomes (heads or tails), and the probability of getting a heads on any given flip is 0.5.
Each "coin-flip" is independent of the others, and the probability of getting a heads on any given flip is always the same which is "0.5",
So, this situation fits the requirements for a binomial distribution.
The "binomial-distribution" can then be used to calculate the probability of getting a certain number of heads out of a fixed number of flips. For example, if we flip a coin 10 times, the probability of getting exactly-5 heads can be calculated using the binomial distribution formula.
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BRAINLY AND POINTS
PLEASE HELP
Answer:
Further from
Step-by-step explanation:
GOOD LUCK
· Jim put a fence around a rectangular area. A scale drawing of the area
has a length of 3.5 inches and width of 2.5 inches. If the scale of the
drawing is 1 inch = 5 feet, what is the actual perimeter of the fenced
area?
Answer: 73 feet
Step-by-step explanation:
1inch =5feet
L=3.5 inches W=2.5 inches
P= L1+L2+W1+W2
L=3.5(5) =17.5
W= 2.5(5) = 12.5
17.5+ 17.5 +12.5+ 12.5= 73 feet
Find the value of X
HURRY PLEASE
Answer:
16
Step-by-step explanation:
equilateral triangle
We have 10 girls and 15 boys in our MATH 146 class. We have to select
two students randomly for a presentation at the 2023 math student research conference. What is the probability that both students chosen are boys?
The probability of selecting a boy from the class is 15/25, or 3/5, since there are 15 boys in a class of 25 students.
When selecting two students randomly without replacement, the probability of selecting a boy on the first draw is 15/25, and the probability of selecting another boy on the second draw (assuming the first student selected was a boy) is 14/24, since there will be 14 boys left out of 24 students remaining.
So the probability of selecting two boys in a row is:
(15/25) * (14/24) = 7/20
Therefore, the probability that both students chosen for the presentation are boys is 7/20, or approximately 0.35.
why are there graphs.
Answer:
Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described adequately in the text and in less space. ... If the data shows pronounced trends or reveals relations between variables, a graph should be used.
Step-by-step explanation:
HOPE THSI HELPS!
Discount % is always calculated on the:
a) CP ( cost price).
b) SP ( selling price).
c) MP ( marked price).
d) None of these.
difference of -150 and 325
Step-by-step explanation:
\( - 150 - 325 = - 340\)
for what value of a does (one-ninth) superscript a 1 baseline = 81 superscript a 1 baseline times 27 superscript 2 minus a?–4–226
Given \(`(1/9)^a = 81^(a1)*27^(2-a)`\) We need to find the value of a.Let's write the values of 81 and 27 in terms of powers of\(3.81 = 3^4 and 27 = 3^3\)
Substituting the values, we have:
\((1/9)^a \\= 3^(4*a1) * 3^(3-3a)(1/9)^a\\ = 3^(4*a1) * 3^3 * 3^(-3a)(1/9)^a\\ = 3^(4*a1 + 3 - 3a)3^(-4a + 3)\\ = 3^(4*a1 + 3 - 3a)3(-4a + 3) \\= 4*a1 + 3 - 3a12a1 - 3a + 3\\ = 4a1 + 3 - 3a8a1 = 0a1\\ = 0As `a1 = 0`, \\`8a1 = 0`\)
Thus, `a = 2`
A hexagon is a six-sided polygon or hexagon in geometry that makes up the cube's outline. A straightforward hexagon's internal angles add up to 720°. A closed two-dimensional polygon with six sides is what is known as a hexagon in geometry. Additionally, a hexagon has 6 corners on each side. Hexa signifies six, and gona denotes an angle. Soccer balls, honeycombs, floor tiles, and surfaces of pencils are all hexagonal in shape. A hexagon is a polygon with six sides in geometry. A hexagon is referred to as a regular hexagon if all of its sides and angles have the same length.
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fourteen thirds times five
Answer:
23.33
Step-by-step explanation:
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how many different possible options of combinations are available in binary code using eight bits?
1. 64
2. 16
3. 128
4. 256
There are a total (4) 2⁸ = 256 possible methods to join 8 bits or 8 binary digits.
What are binary codes?A binary code uses a two-symbol system to represent text, computer processor instructions, or any other data.
The binary number system's "0" and "1" are frequently employed as the two symbols in this system.
Each character, command, etc. is given a set of binary digits, often referred to as bits, by the binary code.
A binary string of eight bits (also known as a byte) can, for instance, represent any of 256 possible values and hence a vast range of distinct things.
8 bits, or 8 binary digits, can be combined in 2⁸=256 different ways.
Some of these combinations are shown in the following table.
(The number in parentheses is the equivalent in decimal form.)
Therefore, there are a total (4) 2⁸ = 256 possible methods to join 8 bits or 8 binary digits.
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find the sum and product of each of these pairs of numbers. express your answers as binary expansions. the sum of the numbers (10 1010 1010)2 and (1 1111 0001)2 is
The given numbers are:(10 1010 1010)2 and (1 1111 0001)2To find the sum of two binary numbers, we can add them using binary addition.
Similarly, to find the product of two binary numbers, we can multiply them using binary multiplication.Therefore, using binary addition:1 1 1 1 1 0 0 0 1 0(10 1010 1010)2+ (1 1111 0001)2-------------------1 0 0 1 0 1 1 0 1 1(11 1010 1011)2Therefore, the sum of the given binary numbers is (1 0 0 1 0 1 1 0 1 1)2To find the product of two binary numbers,
we use binary multiplication.(10 1010 1010)2 × (1 1111 0001)2---------------------------(10 1010 1010)2(×) (1) (1 0101 0101 0)2(×) (1 1111 0001)2--------------------------(10 1011 0001 1 0 1 0)2Therefore, the product of the given binary numbers is (10 1011 0001 1 0 1 0)2.Note: To represent the binary number, (10 1011 0001 1 0 1 0)2, it is better to split it into groups of 4 starting from the right side. Therefore, it can be written as (1 0101 1000 1110 1010)2.
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