Please help me for 21 points.
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%.
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)
(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.
(EASY POINTS) Answer num: 5 with a detailed explanation. :)
Answer:
There is no picture
Step-by-step explanation:
Find the distance between each pair of points
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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If Sophia purchases n songs for .99 cents each, write an expression for the total cost.
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
hey luvs help would be very much appreciated pls need it by the end of the day<3
Answer:
it eather abc or d
Step-by-step explanation:there is a 1 in 4 chan of getting it correct so 25 percent chance good luck i dont know it lol
Answer:
x - 2y > -4
............
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)
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.
What property of equality would you use to solve the equation n/4 = 16.
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.
~
will give branliest
how do i write 5(7j + 6 + 3j) into a verbal expression?
please help me with my math HM pleeease
I NEED HELP ON THIS
Simplify the expression 6−2x+5+4x. Hint: Your final expression should only have two terms.
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
A. does 24 ft = 2in ?
No, your answer should be,
[tex]\Huge\boxed{288}[/tex]
To convert feet into inches, you multiply the length value by 12. Your mistake is you got it mixed-up. 24ft doesn't equal 2in, but 24in equals 2ft, because instead of multiplying 12, you divide by 12.
24ft → 288in
24 × 12 = 288
24in → 2ft
24 ÷ 12 = 2
Hence, 24ft doesn't equal 2in.
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
Answer:
1/5
Step-by-step explanation:
Answer: D. 1/5 of a pound
Step-by-step explanation:
Seth deposited $40 in a savings account that earns 5% interest each year. How much interest will he earn in 1 year?
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:
pls help on this as well
Answer:
slope = -6
y intercept = -3
Step-by-step explanation:
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 :)
Answer:
1 3/4 gallons of paint
Step-by-step explanation:
sorry if wrong
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:
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?
Answer:733.8 dollars in profit
Step-by-step explanation:
hope this helps :)
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?
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.
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
Which are equivalent ratios to 3:4?
Check all that are true.
6:8
15:20
9:12
9:15
16:20
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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help please, an explanation would be greatly appricatated.
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
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.
the price of a shirt was $16. there is a price increase of 4%. which of the following expression gives the new price of the shirt?
Answer:
$16.64
Step-by-step explanation:
$16 + 4% = $16.64
WILL GIVE BRAINLIEST
Answer:
-9
Step-by-step explanation:
brainliest?
HeLp! ;^;
(05.05)The width of a rectangle is shown below:
A coordinate plane with a point A at negative 3, 3 and C at negative 3, negative 2.
If the area of the rectangle to be drawn is 20 square units, where should points B and D be located if they lie to the right of points A and C?
B(1, 3) and D(1, −2)
B(3, 3) and D(3, −2)
B(2, 3) and D(2, −2)
B(1, 2) and D(1, −3)
The answer is B
Hope this Helps!
How many tenths is 28 equal to?
Answer:
2 tenths and 8 ones
Step-by-step explanation:
Explain how to draw a circle with a circumference of pi^2 inches.
Answer:
here can you give me brainliest
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
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
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 :)
Answer:
Step-by-step explanation:hi
Answer:
48..
Step-by-step explanation: