At first, we will use the rule of distance to find the sides of the 2 triangles
\(d=\sqrt[]{(x2-x1)^2+(y2-y1)^2}\)If PQ = XY,
QR = YZ
PR = XZ
Then the 2 triangles are congruent using SSS postulate of congruency
If any two sides not equal, then
Triangles are not congruent
Answer: Let's see. The triangle QRZ (I will call it triangle qrz from now on) must be congruent to the triangle YXZ (that I will call triangle yxz from now). Why is this? Because if you compare side qr to yx, you will see that qr side is longer than yx side. Now do the same kind of comparison with every corresponding side. For example, zy side is longer than pz side. So we can say the triangle qrz is congruent to the triangle yxz.
Find the value of x
Show work
The value of x is 30 degrees as it is a complimentary angle. When two angles' measurements add up to 90 degrees, they are said to be complimentary. When two angles' measures sum up to 180 degrees, they are said to be supplementary.
How can you tell if a perspective is supplemental or complementary?Complementary angles are two angles with a combined angle of 90 degrees, whereas supplementary angles have a combined angle of 180 degrees.
What is the name for a 270 degree angle?Reflex angles are those that are larger than 180 degrees and less than 360 degrees. So 270 degrees is a reflex angle.
Since it is a right angle triangle,
hence
\((2x+1)+29=90\\2x+1=61\\2x=60\\x=30\)
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What is the value of X
Answer:
x = 17
Step-by-step explanation:
The sum of the interior angles of a triangle is 180
x + 17 + 4x - 34 + 6x + 10 = 180 Combine like terms
11x -7 = 180 Add 7 to both sides
11x - 7 + 7 = 180 + 7
11x = 187 Divide both sides by 11
\(\frac{11x}{11}\) = \(\frac{187}{11}\)
x = 17
Answer:
the answer is x=17 because the triangle is isosceles
if you take away 25 from a number you will be left with two and halftimes 30. what is the number?
ou are working with the penguins dataset. you want to use the summarize() and mean() functions to find the mean value for the variable body mass g. you write the following code: penguins %>% drop na() %>% group by(species) %>% add the code chunk that lets you find the mean value for the variable body mass g.
The mean body mass of the Adelie species is 3706.164 g.
Original chunk of code:
penguins %>%
drop_na() %>%
group_by(species) %>%
The code chunk summarize(mean(body_mass_g)) lets you find the mean value for the variable body_mass_g. The correct code is
penguins %>% drop_na() %>% summarize (mean(body_mass_g)).
The summarize () function displays summary statistics. We can use the summarize() function in combination with other functions - such as mean(), max(), min() - to calculate specific statistics. In this case, you use mean() to calculate the mean value for body mass.
Hence, The mean body mass for the Adelie species is 3706.164 g.
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Please help I’ll mark you as brainliest if correct!!
Answer:
A. 366-249=125
B. 13386-9608=4788
In △JKL , if m∠ J < 90° , then ∠K and ∠L are _____
Both angle K and angle L must be acute angles, measuring less than 90 degrees, in order to satisfy the conditions of the given triangle.
In triangle JKL, if angle J is less than 90 degrees, then angle K and angle L are both acute angles.
An acute angle is defined as an angle that measures less than 90 degrees. Since angle J is given to be less than 90 degrees, it is an acute angle.
In a triangle, the sum of the interior angles is always 180 degrees. Therefore, if angle J is less than 90 degrees, the sum of angles K and L must be greater than 90 degrees in order to satisfy the condition that the angles of a triangle add up to 180 degrees.
Hence, both angle K and angle L must be acute angles, measuring less than 90 degrees, in order to satisfy the conditions of the given triangle.
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you have a bill of $100. find a 10% tip?
Answer:
10 bucks
Step-by-step explanation:
Answer:
$10
Step-by-step explanation:
10%=0.1
100*0.1=10
$10
If P(x) = 2x² (x + 3) − (7x − 10); Q(x) = 8(x − 1) (x² + x + 1) − 3x² + 4; R(x) = (2x + 1)² - (2x² + 7)
and S(x) = 2(5x³+6) + x(x - 11) then prove that {P(x) + Q(x)} − {R(x) + S(x)} is a zero polynomial.
The expression {P(x) + Q(x)} − {R(x) + S(x)} is a zero polynomial.
How to prove that {P(x) + Q(x)} − {R(x) + S(x)} is a zero polynomial.From the question, we have the following polynomial that can be used in our computation:
P(x) = 2x² (x + 3) − (7x − 10)
Q(x) = 8(x − 1) (x² + x + 1) − 3x² + 4
R(x) = (2x + 1)² - (2x² + 7)
S(x) = 2(5x³+6) + x(x - 11)
Add the expressions P(x) and Q(x)
So, we have
P(x) + Q(x) = 2x² (x + 3) − (7x − 10) + 8(x − 1) (x² + x + 1) − 3x² + 4
Evaluate
P(x) + Q(x) = 10x³ + 3x² - 7x + 6
Add the expressions R(x) and S(x)
So, we have
R(x) + S(x) = (2x + 1)² - (2x² + 7) + 2(5x³+6) + x(x - 11)
R(x) + S(x) = 10x³ + 3x² - 7x + 6
So, we have
P(x) + Q(x)} − {R(x) + S(x)} = 10x³ + 3x² - 7x + 6 - (10x³ + 3x² - 7x + 6)
Evaluate
P(x) + Q(x)} − {R(x) + S(x)} = 0
Hence, the expression {P(x) + Q(x)} − {R(x) + S(x)} is a zero polynomial.
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You want to paint a 15x15 ft room. How many gallons of paint will you need? A gallon covers 150 square feet.
-.25z=-1.25 What is Z?
Answer:
z=5
Step-by-step explanation:
To evaluate whether customers enjoy the barista’s new smoothie, a restaurant manager surveys every other customer who orders the new smoothie. The manager determines that customers enjoy the new smoothie. Select all the statements that are true about the sampling method.
The sampling method used by the restaurant manager allows for efficient data collection and a representative sample, it may introduce bias and lacks randomization.
Based on the information provided, we can identify the following statements that are true about the sampling method used by the restaurant manager to evaluate customer satisfaction with the new smoothie:
1. The manager uses systematic sampling: The manager surveys every other customer who orders the new smoothie. This systematic approach involves selecting every second customer, providing a consistent and organized sampling method.
2. The sample is representative: By surveying every other customer who orders the new smoothie, the manager ensures that the sample includes a variety of customers, reflecting the customer population as a whole.
3. The sample size may be smaller than the total customer base: Since the manager surveys every other customer, the sample size may be smaller compared to surveying every customer. This allows for efficient data collection and analysis.
4.The sampling method may introduce bias: The manager may inadvertently introduce bias by only surveying every other customer. Customers who are skipped in the survey may have different preferences or opinions, leading to a potential bias in the results.
5. The sampling method lacks randomization: Randomization is not employed in this sampling method, as the manager systematically selects customers. This could potentially introduce bias or exclude certain types of customers from the sample.
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if y is directly porportional to x^2 and the difference in the values of y when x=1 and x=3 is 32, find the value of y when x=-2
Answer:
Step-by-step explanation:
y=kx²
y₁=k(1)²=k
y₃=k(3)²=9k
y₁-y₃=k-9k=32
-8k=32
k=-4
y=-4x²
y₋₂=-4(-2)²=-16
In a survey of 180 people, it was found that 95 people liked tea 80 people liked milk and 35 did not like both tea and milk. 1)Find how many people like both tea and milk. 2)Represent the above information in a Venn-diagram.
In this Venn diagram, the number 30 appears in the overlapping region of the circles, and the number 35 appears outside of both circles.
Venn diagram explained.
Let's use T to represent the set of people who like tea, M to represent the set of people who like milk, and U to represent the universal set of all 180 people. We know that:
|T| = 95 (the number of people who like tea)
|M| = 80 (the number of people who like milk)
|T ∪ M| = 180 - |T ∩ M| = 180 - 35 = 145 (the number of people who like either tea or milk)
To find the number of people who like both tea and milk, we can use the formula:
|T ∩ M| = |T| + |M| - |T ∪ M|
Substituting in the values we know, we get:
|T ∩ M| = 95 + 80 - 145 = 30
Therefore, 30 people like both tea and milk.
To represent this information in a Venn diagram, we can draw two overlapping circles to represent the sets T and M. The circle for T should contain 95 elements, and the circle for M should contain 80 elements. The overlap region between the circles should contain 30 elements. The region outside of both circles should contain 35 elements, since 35 people do not like either tea or milk. The Venn diagram would look like this:
_______________
/ \
/ \
/ T \
\ /
\_________________/
|
| 30
|
______/ \______
/ \
/ \
/ M \
\ /
\_________________/
In this diagram, the number 30 appears in the overlapping region of the circles, and the number 35 appears outside of both circles.
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factorize
m²-2mn+n²-9r
Answer:
\((m-n)^{2}-9r\)
Step-by-step explanation:
m²-2mn+n²-9r
\((m-n)^{2}-9r\)
I need help asap thank you
Answer:
(x, -y)
Step-by-step explanation:
When you reflect across the x-axis, the point moves vertically up or down to the other side of the x-axis. The x-coordinate of the point remains the same. The y-coordinate of the point becomes the opposite of the original value.
x remains x. y becomes -y.
Answer: (x, -y)
ten minutes later airplane 2 lands with a rate of descent of -97/8 feet per second. which airplane had the fastest rate during its landing?
Airplane 1 had the fastest rate of descent during its landing.
To compare the rates of descent of the two airplanes, we need to convert both rates to a common unit of measurement. Let's convert both rates to feet per minute (ft/min) to make the comparison easier.
Airplane 1 had a rate of descent of -130 ft/s, which is equivalent to:
-130 ft/s × 60 s/min = -7800 ft/min
Airplane 2 had a rate of descent of -97/8 ft/s, which is equivalent to:
(-97/8) ft/s × 60 s/min = -729.375 ft/min
Comparing these two rates, we can see that Airplane 1 had the faster rate of descent during its landing:
-7800 ft/min (Airplane 1) > -729.375 ft/min (Airplane 2)
Therefore, Airplane 1 had the fastest rate of descent during its landing.
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Jessica always uses the same ratio of green beads to blue beads when she makes necklaces. The graph shows these equivalent ratios. Which table shows the same data?
Answer:
table 2
Step-by-step explanation:
see attached
Answer:
table no. 2
Step-by-step explanation:
I’m stuck on this question if someone could help me I would highly appreciate:)
In Chelsea's group, there are three boys and six girls. Write a fraction, in simplest form, to represent the amount of boys in the group.
Answer: 3/9 should be the answer :)
Step-by-step explanation:
On a large college campus, the students are able to get free copies of the school newspaper,the local newspaper, and a national paper. Ninety percent of the students read at least one of thepapers, 40% read only the school newspaper, 20% read only the local paper, 5% read only thenational paper, and 2% read all three papers. Fifty percent read the school newspaper, and 5%read the school and national newspapers. A randomly selected student is asked whether he orshe reads the school, local, or national paper. Express each of the following events in setnotation and find the percentage of students represented by each.a The student does not read any paper.b. The student reads the local paper.c. The student reads exactly two papers.d. The student reads at least two papers.
Answer:
a) The percentage that the student does not read any paper is 10%
b) The percentage that the student reads the local paper is 40%
c) the percentage that the student reads exactly two papers is 23%
d) the percentage that the student reads at least two papers is 25%
Step-by-step explanation:
Given the data in the question;
as illustrated in the Venn diagram below,
a)The student does not read any paper;
The percentage that the student does not read any paper will be;
100% - 90% = 10%
Therefore, The percentage that the student does not read any paper is 10%
b) The percentage that the student reads the local paper;
from the Venn diagram below;
⇒ ( 20 + 15 + 3 + 2 )%
= 40%
Therefore, The percentage that the student reads the local paper is 40%
c) The percentage that the student reads exactly two papers
⇒ ( 15 + 5 + 3 )%
= 23%
Therefore, the percentage that the student reads exactly two papers is 23%
d) The percentage that the student reads at least two papers;
⇒( 15 + 5 + 3 + 2 )%
= 25%
Therefore, the percentage that the student reads at least two papers is 25%
Translate this sentence into an inequality.Five times the sum of a number and 16 is at least 19.use the variable w for the unknown number
The inequality will be 5(w+16)≥19.
What are inequality?
A disparity in size, quantity, quality, social standing, or another aspect is what is meant by the term "inequality." When you have ten of something and someone else has none, that is an instance of inequality. noun. 5. When two values are compared, an inequality reveals whether one is bigger than, less than, or simply not equal to the other.
The expression a ≠ b implies that a and b are not equal.
If a< b, then a must be less than b.
If a > b, then an is bigger than b. (these are called strict inequality)
The phrase "a ≤b" denotes that an is less than or equal to b.
a ≥ b means that an is greater than or equal to b.
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help me with find the slope PLEASEEEE I NEED HELPP
Answer:
y=-1
x=-3
Step-by-step explanation:
First find the surface area of the triangular prism
Answer:
Front, 60, back 60, right, 30, left, 30. And the triangle's surface area is 15 + 15 = 30, And 20 / 2 = 10. SO the surface area is 190 cm^2
Step-by-step explanation:
The instructor noted the following scores on the last quiz of the semester for 8 students. Find the range of this data set 59,61,83,67,81,80,81,100
answer: the range is 41.
to find the range of this data set, we first need to find the minimum and maximum values - which are 59 and 100.
then we subtract the minimum from the maximum.
59 - 100 = 41.
3 6 9 12 15 18 21 24 27 30 is odd or even numbers?
Answer: Half of them are even and half of them are odd.
Step-by-step explanation:
The even numbers are 6, 12, 18, 24, and 30. An even number is defined as a number that is divisible by 2, meaning it has no remainder when divided by 2. For example, 6 divided by 2 equals 3 with no remainder, so 6 is even.
The odd numbers are 3, 9, 15, 21, and 27. An odd number is defined as a number that is not divisible by 2, meaning it has a remainder of 1 when divided by 2. For example, 9 divided by 2 equals 4 with a remainder of 1, so 9 is odd.
Therefore, out of the given numbers, half of them are even and half of them are odd.
________________________________________________________
an academic department has just completed voting by secret ballot for a department head. the ballot box contains four slips with votes for candidate a and three slips with votes for candidate (a) List all possible outcomes. This answer has not been graded yet. (b) Suppose a running tally is kept as slips are removed.
Therefore , the solution of the given problem of probability comes out to be AAAABBB (4 ballots for candidate A, 3 votes for candidate B) (4 votes for candidate A, 3 votes for candidate B)
What is probability?The primary objective of statistical inference, a branch of mathematics, is to determine the chance that a claim is true or that a specific event will occur. Chance can be represented by any number between 0 and 1, in which 1 typically represents certainty and 0 typically represents possibility. A probability diagram shows the chance that a specific event will occur.
Here,
(a) The voting box contains a total of seven slips, four of which are for candidate A and three for candidate B. Thus, there are 35 events that can occur from 7 choose 4 (or 7 choose 3) options.
Each vote can be represented by a letter, with A standing for a vote for candidate A and B for candidate B, so that all outcomes can be listed. These are the potential results:
AAAA
AAAB
AABA
ABAA
BAAA
AABB
ABAB
BABA
BBAA
ABBB
BABB
BBAB
BBBA
(b)
For instance, the following results could occur if the slips were removed in the following order:
A (1 vote for contender A) (1 vote for candidate A)
AA (2 ballots for candidate A) (2 votes for candidate A)
AAB (2 ballots for candidate A, 1 vote for candidate B) (2 votes for candidate A, 1 vote for candidate B)
AAAB (3 ballots for candidate A, 1 vote for candidate B) (3 votes for candidate A, 1 vote for candidate B)
AAAAB (4 ballots for candidate A, 1 vote for candidate B) (4 votes for candidate A, 1 vote for candidate B)
AAAABB (4 ballots for candidate A, 2 votes for candidate B) (4 votes for candidate A, 2 votes for candidate B)
AAAABBB (4 ballots for candidate A, 3 votes for candidate B) (4 votes for candidate A, 3 votes for candidate B)
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When solving this equation: -16 + x = -15 we start with adding 16 to both sides. Why do we use addition?
Answer:
So you can cancel out the 16. See, the -16 is negative, and if we add +16 to it, then it cancels out and is 0. That way, you have x=1.
Step-by-step explanation:
-16x+x=-15
+16x +16
0+x=1
x=1
Which equation represents the graphed function?
The linear function graphed is defined as follows:
y = 3x/2 - 3.
(third option).
What is a linear function?The slope-intercept definition of a linear function is given as follows:
y = mx + b.
In which:
The slope m represents the rate of change.The intercept b represents the value of y when the graph crosses the y-axis.The graph crosses the y-axis at y = -3, hence the intercept b is given as follows:
b = -3.
When x increases by 2, y increases by 3, hence the slope m is given as follows:
m = 3/2.
Then the function is defined as follows:
y = 3x/2 - 3.
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I need help asappp!!!
Answer:
the first blank is corresponding and the second blank is 105.
Step-by-step explanation:
Hope This Helps!!
(brainliest please if possible)
Steve says to find the difference in temperature between 7 AM and
12 PM Wednesday, he can use a number line. He says because one
temperature is negative and the other is positive, he can add together their
distances from 0.
Kelly says that she can find the change by subtracting -5.1 from the temperature
at 12 PM on Wednesday.
Who is correct? Use the drop-down menus to explain your reasoning and find the
change in temperature.
and the distance from 0 to the Wednesday 12 PM temperature is 2.5
Steve is correct. Steve can find the difference in temperature between 7 AM and 12 PM on Wednesday by adding the distances from 0.
By using a number line, Steve can find the difference in temperature between 7 AM and 12 PM on Wednesday by adding the distances from 0. One temperature is negative and the other is positive, but by adding their distances, he can find the difference. Kelly's method of subtracting -5.1 from the temperature at 12 PM on Wednesday is not necessarily incorrect, but it does not give the exact difference in temperature between the two times. Therefore, using Steve's method, the change in temperature would be the sum of the distance from 0 to the temperature at 7 AM (which is 2.5) and the distance from 0 to the temperature at 12 PM (which is also 2.5), resulting in a difference of 5 degrees.
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