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Giving brainliest
Triangle PQR is transformed to triangle P′Q′R′. Triangle PQR has vertices P(8, 0), Q(6, 2), and R(−2, −4). Triangle P′Q′R′ has vertices P′(4, 0), Q′(3, 1), and R′(−1, −2).
Plot triangles PQR and P′Q′R′ on your own coordinate grid.
Part A: What is the scale factor of the dilation that transforms triangle PQR to triangle P′Q′R′? Explain your answer. (4 points)
Part B: Write the coordinates of triangle P′′Q′′R′′ obtained after P′Q′R′ is reflected about the y-axis. (4 points)
Part C: Are the two triangles PQR and P′'Q′'R′' congruent? Explain your answer. (2 points)
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(A) The scale factor of the dilation that transforms Triangle PQR to Triangle P'Q'R' is 1/4
(B) Coordinates of Δ P"Q"R"
P" (-1,0)
Q"(0,-1)
R"(2,-1)
(C) Triangles PQR and P"Q"R" are not congruent.
Given
ΔPQR is transformed into ΔP'Q'R'
Coordinates of P, Q, R are
P (4,0),
Q(0,-4)
R(-8,-4)
Coordinates of P'Q'R' are
P'(1,0)
Q'(0,-1)
R'(-2,-1)
(A) By Distance formula we can find the distance between P Q and P'Q'
Distance formula =
Where D = Distance between two points
from distance formula we can write that
PQ =
Similarly
P'Q'=
PQ /P'Q' = 4
hence the scale factor of dilation is 1/4 (Compression)
(B )The Coordinates of Reflection about y axis can be written for a point
So the Coordinated of Δ P"Q"R" can be written as
P" (-1,0)
Q"(0,-1)
R"(2,-1)
(C) ΔPQR and ΔP"Q"R" are similar triangles but they are not congruent because their sides are not equal in size.
A quarterback is sacked for a loss of 5 yards. On the next play, his team loses 15 yards. Then the team gains 12 yards on the third play. Write an addition expression to describe this situation.
A. -5 + (-15) + 12
B. 5 + (-15) + 12
C. -5 + 15+ ( - 12)
D. 15 + 7
Which expressions are correct.
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Tyler used
1 1/4 gallons of paint to paint
5/7 of a fence. How many gallons will it take to paint the whole fence? Write a multiplication equation or a division equation to represent this question, then find the answer.
I also need an explanation for the answer and I need it today :)
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Answer:
1 3/4 gallons of paint
Step-by-step explanation:
sorry if wrong
pls help on this as well
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Answer:
slope = -6
y intercept = -3
Step-by-step explanation:
Please help me for 21 points.
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Answer:
24.44 percent
Step-by-step explanation:
F=Friday
S=Saturday
P(F or S)= 20/90+22/90-20/90=22/90
22/90 as percentage is 24.44 percent
Answer:
For Friday, 22% of the check in's happened on that day. For Saturday, 24% of the check in's happened on that day. For both days combined, 46.66% of the check in's happened for both.
Step-by-step explanation:
Overall there were 90 check ins. Since 20 happened on Friday, it would be 20/90, which is 22%. Saturday, 22 check ins happened, so it would be 22/90, which is 24%. Overall, between Friday and Saturday, 42 check in's happened, so it would be 42/90, which is 46.66%.
Seth deposited $40 in a savings account that earns 5% interest each year. How much interest will he earn in 1 year?
Answers
Answer:
$2
Step-by-step explanation:
The formula for simple interest is i = p*r*t, where r is the annual interest rate expressed as a decimal fraction. Here the principal is $40 and the elapsed time is 1 year. The amount of interest collectible after 1 year is thus:
i = ($40)(0.05)(1) = $2
Answer:
$2
Step-by-step explanation:
download this pdf to see these math problems! if u want me to take a screenshot of it instead then just lmk
(btw im not one of those bots who gonna spam you dw)
Answers
Answer:
Here is the answer
Step-by-step explanation:
1. bottom right
2. top left
3. where the 0/zero is
4.
A top by the five
B the middle of the graph
C bottom right where the 5 is
5. (4,6)
6. (2,9)
7. (0,4)
8. It is wrong because they mixed up the y and x axis. Ds real answer is (7,3) In order to get it right they have to flip the numbers around.
Dean earns 4% commission on computer sales if he
sells a computer for $2000, how much will his
commission be?
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Answer:
80
Step-by-step explanation:
Explain how to draw a circle with a circumference of pi^2 inches.
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Answer:
here can you give me brainliest
Step-by-step explanation:
help please, an explanation would be greatly appricatated.
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Answer:
x = -5
Step-by-step explanation:
In both questions you want to get the x alone.
1.
-3x + (-6) = 9
First you want to add 6 to both sides so you'll be left with:
-3x = 15
Next, you want to divide both sides by -3 and you'll get:
x = -5
2.
-4x + (-12) = 8
You want to do the same thing as the first one so you'll add 12 to both sides:
-4x = 20
Then, you will divide both sides by -4 and get:
x = -5
I NEED HELP ON THIS
Simplify the expression 6−2x+5+4x. Hint: Your final expression should only have two terms.
Answers
Answer:
2x + 11
Step-by-step explanation:
combine like terms, 4x - 2x is 2x and 6 + 5 is 11, so the answer is 2x + 11
will give branliest
how do i write 5(7j + 6 + 3j) into a verbal expression?
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Hope this helps :)
What property of equality would you use to solve the equation n/4 = 16.
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Answer:
Multiplication Property of Equality.
Step-by-step explanation:
Isolate the variable, n. Note the equal sign, what you do to one side, you do to the other.
Multiply 4 to both sides of the equation:
(n/4) * 4 = (16) * 4
n = 16 * 4
n = 64
n = 64 will be your answer.
~
Im tired
Which of these describes a ray?
Question 3 options:
Extends in both directions with no end
A part of a line that connects two endpoints
Has a start point but no endpoint
An exact location that has position but no size
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Answer: I would say B. not to sure tho
Explanation: Process of elimination
Opinion 1; describes a plane
Opinion 2; describes line segment
Opinion 4; describes a point
At the Friendly Fuel Stop gas station, Sam filled 75% of his 12-gallon tank with gas. How many gallons of gas did Sam put into his tank? Pick the model that represents the problem.
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If Sophia purchases n songs for .99 cents each, write an expression for the total cost.
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Answer:
I think the answer would be n×0.99
Step-by-step explanation:
the answer will be n×0.99 because she bought for example n=7 each for 99 cents. to find the total you would have to do 7x0.99. Hope this help you
Which are equivalent ratios to 3:4?
Check all that are true.
6:8
15:20
9:12
9:15
16:20
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Answer:
6:8
15:20
9:12
How?
3:4*2=6:8
3:4*5=15:20
3:4*3=9:12
The equivalent ratio to the given to 3:4 are 6:8, 15:20 and 9:12
How to obtain real measurements from the ratio of two measurements?Suppose the real measurements were "a" and "b"
Then their ratio will be formed as
[tex]\dfrac{a}{b} = \dfrac{p \times x}{q \times x} = \dfrac{p}{q}[/tex]
where is a common factor (not 1)
This shows that to get the real measurements from the given ratio, we need to assume to have some factor possibly cancelled from both the numerator and the denominator. Thus, a = px, b = qx
We are given the ratio as; 3:4
3: 4 x 2 = 6 : 8
3: 4 x 5 = 15 : 20
3: 4 x 3 = 9 : 12
Therefore, the equivalent ratio to the given to 3:4 are 6:8, 15:20 and 9:12
Learn more about ratio here:
brainly.com/question/186659
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1..Simplify the expression 6−2x+5+4x. Hint: Your final expression should only have two terms.
2.Diego says the expression 14−0.6t helps him understand this situation. In this situation, what does this expression represent, and what does the variable t stand for in the situation? Write an equation to determine the number of days, t, Diego's father can drive the car without the warning light coming on.
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Answer:
he expression 14 - 0.6t represents remaining fuel in the vehicle, where t represents number of days. ... A warning light comes on when the remaining fuel is 1.5 gallons or less.
Step-by-step explanation:
Which expression is equivalent to 3(4m - 2) - 2(m + 5)
A. 10m - 16
B. 14m + 4
C. -16m + 10
D. 12m - 6
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Answer:
A. 10m - 16
Step-by-step explanation:
First, distribute 3 to all terms within the corresponding parenthesis, and -2 likewise:
3(4m - 2) =
3 * 4m = 12m
3 * -2 = -6
3(4m - 2) = 12m - 6
-2(m + 5) =
-2 * m = -2m
-2 * 5 = -10
-2(m + 5) = -2m -10
Combine like terms:
12m - 6 -2m - 10
12m - 2m - 6 - 10
(12m - 2m) + (-6 - 10)
10m - 16
A. 10m - 16 is your answer.
~
Answer:
10 m - 16 (Answer A)
Step-by-step explanation:
We use distributive property to eliminate parenthesis:
12 m - 6 - 2 m -10
and now combine like terms:
[12 m - 2 m] - 6 - 10
10 m - 16
Therefore, answer option A. is the correct one
Cecilia brought of a pound of shredded newspaper and Juan brought of a pound of shredded newspaper to art class for a paper mâché project. They combined the shredded newspaper and divided it equally among 5 people at their table. How much shredded newspaper did each person at the table receive? The answer choose are in the pic.0
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Answer:
1/5
Step-by-step explanation:
Answer: D. 1/5 of a pound
Step-by-step explanation:
PLZ HELP ME!!! im almost done sort of haha
P.s ima just be posting alot of stuff i need help with
have a nice day :)
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Answer:
Step-by-step explanation:hi
Answer:
48..
Step-by-step explanation:
How many tenths is 28 equal to?
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Answer:
2 tenths and 8 ones
Step-by-step explanation:
This is 15 points plz help ( no links ) EXPLAIN YOUR ANSWER plz
( ONLY ANSWER THIS IF YOU KNOW WHAT IT IS )
The answer is NOT C
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Half the rectangle would be the same as the original triangle so if u find the area of half of it you will get the area of the first triangle:)
A jar contains 1,000 marbles. Omar is entering a contest to guess the number of any one color of marbles in the jar. He is allowed to take four random samples of 200 marbles, and his results are shown in the table.
Sample Blue/Green/Red/White
1. 82 42 36 40
2. 70 51 49 30
3. 58 66 45 31
4. 65 62 38 35
Which statements are true? Choose all that apply. (There are three correct answers).
A.There are probably more white marbles than green marbles in the jar.
B. There are likely more blue marbles in the jar than any other color.
C.The ratio of the number of red marbles in the jar to the number of green marbles in the jar is most likely greater than the ratio of the number of white marbles in the jar to the number of blue marbles in the jar.
D. The number of green marbles in the jar is approximately 21% to 33% of the marbles in the jar.
E.The total number of red marbles in the jar is approximately 168.
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Answer:
A B and C are correct
Step-by-step explanation:
Thirty seventh graders each took a random sample of 10 middle school students and asked each student whether or not he likes pop music. Then, they calculated the proportion of students who like pop music for each sample. The dot plot below shows the distribution of the sample proportions.
Based on the dot plot, do you think the proportion of the middle school students at this school who like pop music is 0.5? Explain why or why not.
Question 1 options:
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A restaurant manager uses the expression 7.85m + 8.85d to calculate his profit when he sells m main courses and d desserts. What is the restaurant manager's profit, in dollars, when he sells 45 main courses and 43 desserts?
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Answer:733.8 dollars in profit
Step-by-step explanation:
hope this helps :)
Find the distance between each pair of points
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Answer:
4: (0, 4)
5: (0, 8.8)
6: (0, 6)
7: (10, 0)
Step-by-step explanation:
6-2=4
5.5-(-3.3)=8.8
-7/12-(-1/2)
31/4-(-9/4)=10
The distances between the points are:
4) 45) 8.86) 67) 10How to find the distances between the points?The distance between two points (a, b) and (c, d) is given by:
[tex]distance = \sqrt{(a - c)^2 + (b - d)^2}[/tex]
4) Here the points are (-5, 2) and (-5, 6) so the distance is:
[tex]distance =\sqrt{(-5 - (-5))^2 + (6 - 2)^2} = 4[/tex]
5) Here the points are (4.5, -3.3) and (4.5, 5.5), so the distance is:
[tex]distance = \sqrt{(4.5 - 4.5)^2 + (-3.3 - 5.5)^2 } = 8.8[/tex]
6) Here the points are (5 + 1/2, -7 - 1/2) and (5 + 1/2, -1 - 1/2), so the distance is:
[tex]distance = \sqrt{(5.5 - 5.5)^2 + (-7.5 - (-1.5)^2)} = 6[/tex]
7) Here the points are (-2.25, -8) and (7.75, -8), so the distance is:
[tex]distance = \sqrt{(-2.25 - 7.75)^2 + (-8 + 8)^2} = 10[/tex]
If you want to learn more about distances:
https://brainly.com/question/7243416
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50 randomly selected students were asked about their favorite singer. The results are below.
30 students chose Beyoncé
15 students said Doja Cat
5 students did not have a favorite
Assuming the data above is a representative, if there is a total of 375 students, how many students would likely list Beyoncé as their favorite singer?
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Answer:
225
Step-by-step explanation:
Answer:
At least 225
Step-by-step explanation:
In a Library, Each bookshelf is 1.2m long 90cm wide and 30cm high. How
many books of size 15cm by5cm by 30cm will fit on each shelf? Find the total number of books in the library if there are 60 shelves.
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Answer:
8640
Step-by-step explanation:
No. of books that can be fit in one single shelf = 90/15 x 120/5 = 144
Such that the total number of books in the library if there are 60 shelves = 144 x 60 = 8640
(EASY POINTS) Answer num: 5 with a detailed explanation. :)
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Answer:
There is no picture
Step-by-step explanation: