PLEASE ANSWER!!!
Is y-x=2 a direct variation?
Is (THIS IS A GRAPH, my school chrome book doesn't allow pictures so...) a direct variation? (see below)
x : 2, 4, 6, 8
y : 2, 3 4, 5
Answers
Answer:
is not a direct variation equation since (x) is not a constant
Step-by-step explanation:
im not sure if this is correct but..
x) is not a constant
Step-by-step explanation:
Related Questions
Pls help me in math, I need this tomorrow, thx :)
Answers
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
Two sets of data, set X and set Y are given
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
Therefore, both the data sets has same range and mean.
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
To learn more about S.D and variance,
https://brainly.com/question/15858152
https://brainly.com/question/12402189
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
We know
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
also
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
List 3 values that would make this inequality true
42 ≤ y
_, _, _
Answers
anything greater or equal to 42
Answer: 42, 43, 44
Step-by-step explanation:
≤ means less than or equal to.
42 is either equal to or less than y, so y can be 42, 43 and 44
What is the surface area of the solid?
A. 32 square centimeters
B. 26 square centimeters
C. 30 square centimeters
D. 28 square centimeters
Answers
Answer:
D. 28 square centimeters
Step-by-step explanation:
The surface area of the prism is the sum of the base areas and the lateral area. Here, the base is an odd shape, so it must be decomposed into shapes we can find the area of.
__
base areaThe base of this prism is the L-shaped face nearest the observer. It can be decomposed into a 1 cm square atop a 1 cm by 3 cm rectangle. The area of the face is the sum of the areas of these parts.
square area = s² . . . . where s is the side length
= (1 cm)² = 1 cm²
rectangle area = bh . . . . b is the base, h is the height
= (3 cm)(1 cm) = 3 cm²
Then the area of the one prism base we see is ...
base area = 1 cm² +3 cm² = 4 cm²
The total area of both L-shaped bases of the prism is ...
total base area = 2(4 cm²) = 8 cm²
__
lateral areaThe perimeter of the base is the sum of the lengths of its edges. Working clockwise from the lower left corner, we find the base perimeter to be ...
(1 +2 +1 +1 +2 +3) cm = 10 cm
The lateral area is the product of the "height" of the prism (the distance between the parallel bases) and this perimeter length.
LA = Ph
LA = (10 cm)(2 cm) = 20 cm²
__
solid areaThe surface area of the solid is the sum of the areas of the bases and the lateral area:
total surface area = total base area + LA
= (8 cm²) +(20 cm²) = 28 cm²
The surface area of the solid is 28 square centimeters.
Because my teacher said that the 28 square centimeters is 1/4 meters you can devided to 28 like 25 diveded by 5=5 then 5x28=280 then 280-28=268 then that is it inbento ko lang
Select all pairs of supplementary angles in the diagram.
BAF and AFB
BAF and AFB
ABF and DCE
ABF and DCE
CDE and DEC
CDE and DEC
CEF and AFB
CEF and AFB
BAF and DEC
BAF and DEC
FBC and BFE
FBC and BFE
BCE and CEF
BCE and CEF
BCE and BAF
Answers
In the given figure angle CBF and angle CEF are supplementary angles. So Option C is correct.
What is an angle ?
An angle is a mathematical term, which we can define, when two straight lines or rays meet at a common endpoint. The common point is called the vertex of an angle. The word angle comes from a Latin word named ‘angulus,’.
Given that,
A figure which contains one trapezium BCEF
And in this portion angle CBF and angle BCE are opposite angles
and opposite angles are supplementary angles,
Hence, the pairs of angles are ∠CBF & ∠CEF
Answer: BAF and AFB, CDE and DEC, CEF and AFB
Step-by-step explanation:
hi, please help if you can! :)
Answers
Answer:
hello. a= +2 and -2
Step-by-step explanation:
because it sais this two are similar so when x become 12 times so y should be the same so 3a2 equals with 12 so...
\(3 {a}^{2} = 12 \\ {a}^{2} = 4 \\ |a| = 2 \\ a = + - 2\)
4. At Rory’s school, students must join one after-school club. Based on the data in Graph #2, which club attracted about 30% of students?
A. yearbook
B. art
C. drama
D. hiking
E. running
F. science
5. Approximately What percent of students chose not to join the yearbook club?
A. 15%
B. 30%
C. 75%
D. 85%
E. 90%
6. About what percent of students joined the art club?
A. 30%
B. 25%
C. 20%
D. 15%
E. 5%
Answers
Carmen drew a scale drawing of a house and its lot. In real life, the lawn in the backyard is 72 meters long. It is 24 millimeters long in the picture. What is the scale of the drawing?
1 millimeter : ___ meters
I'm sorry that there is no picture or drawing
Answers
Answer:
1 millimeter : 3 meters
Step-by-step explanation:
Divide 72/24 = 3
HELP ASAP I WILL MARK BRAINLIEST AND GIVE POINTS!!!!!! (FAKE ANSWERS REPORTED)
The following figures are not drawn to scale but AB and CD if present) are straight lines. Find x:
Answers
Answer:
x=60
Step-by-step explanation:
y=x
90-30=y
60=y
x=60
180 - 90(A&C right angle) =90
90 -30 (from B) = 60
Thus x = 60
The answer is 60
Earn points, answer both questions!
Answers
Answer:
Area of five squares = 1289.09 square units
Perimeter = 194.6 units
Step-by-step explanation:
Area of square and perimeter:
First find the length of each square, then find the area of each square.
To find the area of five squares, add all the area of each square.
Side of square1 = 27 units
\(\sf Side \ of \ square2 = \dfrac{2}{3}*27=2*9 = 18 \ units\\\\Side \ of\ square3= \dfrac{2}{3}*18=2*6=12 \ units\\\\Side \ of \ square4=\dfrac{2}{3}*12=2*4=8 \ units\\\\Side \ of \ square5=\dfrac{2}{3}*8=\dfrac{16}{3}=5.3 \ units\)
Area of square1 = 27*27 = 729 square units
Area of square2 = 18*18 = 324 square units
Area of square3 = 12*12 = 144 square units
Area of square4 = 8*8 = 64 square units
Area of square5 = 5.3*5.3 = 28.09 square units
Area of five squares = 729 + 324 + 144 + 64 +28.09
= 1289.09 square units
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Perimeter of the composite figure = (27 + 27+27+9) + (18+18+6) +(12+12+4) + (8+8+2.7)+ (5.3+5.3+5.3)
= 90 + 42 + 28 + 18.7 + 15.9
= 194.6 units
the perimeter is 194.6 units
is it possible to construct a triangle with the given side lengths 28, 17 and 46 units if not explain why not
Answers
Answer:
The answer would be C because the two smaller sides of a triangle when added together must be greater than the third side which would be the largest.
Step-by-step explanation:
Can you form a unique triangle,more than one,or no triangle with the angles that measure 50 degrees,90 degrees,and 110 degrees? Explain. Support you explanation with drawings.
Answers
Explanation
Add up the angles:
50+90+110 = 140+110 = 250
The angles do not add to 180, so a triangle is not possible.
The rule is that the interior angles of any triangle always add to 180 degrees.
As for the drawing part, you can use a protractor to measure out each angle to see why a triangle can't be formed. GeoGebra is another useful tool.
Answer:
Step-by-step explanation:
We cannot form a triangle because sum of all interior angles of a triangle is 180 degrees.
Here,
50 + 90 + 110 = 180
250 ≠ 180
Hence, we cannot form a new triangle.
Hope it helped. Pls mark me the BRAINLIEST!
PEDMAS?
Example 1:
3+8(4-2)-7
Parentheses First = 3+8(2)-7
Exponents-none
Multiply/Divide 3+16-7
Add/Subtract 19-7 = 12
Example 2:
32-(9-5)+7x3-8÷2
Parentheses 32-(4)+7x3-8÷2
Exponents 6-4+7x3-8÷2
Multiply/Divide 6-4+21-4
Add/Subtract 2+17=19
Review
Directions: Compute the answers using PEMDAS.
1) 7 x 5 + 3=
2) 8 - (6 + 2)=
3) 10 - 6 + 5=
4) (21 3) x 2=
5) (12 6) + 6=
6) 3 + 10 5=
7) 8 + 4 - 2=
8) 7 + 5 - 5=
9) 16 8 - 1=
10) (20 - 17) - 3=
11) 8 + 2 - 7=
12) 18 (4 + 2)=
13) 8 - 6 + 7=
14) 5 - (18 6)=
15) 2 + 13 - 4=
16) (7 - 4) + 3=
17) 9 - 7 + 4=
18) 2 x 6 3=
19) 15 5 + 4=
20) 8 + 6 - 4=
Answers
Answer:
1. 38
2. 0
3. -1
4. 14
5. 8
6. 5
7. 10
8. 7
9. 1
10. 0
11. 3
12. 2
13. 5
14. 3
15. 11
16. 6
17. 2
18. 4
19. 7
20. 10
Step-by-step explanation:
Here are the answers to the review questions using PEMDAS:
1) 7 x 5 + 3= 38
2) 8 - (6 + 2)= 0
3) 10 - 6 + 5= 9
4) (21 / 3) x 2= 14
5) (12 / 6) + 6= 8
6) 3 + 10 x 5= 53
7) 8 + 4 - 2= 10
8) 7 + 5 - 5= 7
9) 16 / 8 - 1= 1
10) (20 - 17) - 3= 0
11) 8 + 2 - 7= 3
12) 18 x (4 + 2)= 108
13) 8 - 6 + 7= 9
14) 5 - (18 / 6)= 2
15) 2 + 13 - 4= 11
16) (7 - 4) + 3= 6
17) 9 - 7 + 4= 6
18) 2 x 6 / 3= 4
19) 15 / 5 + 4= 7
20) 8 + 6 - 4= 10
Question 5 of 10
Solve the system of equations below by graphing both equations with a
pencil and paper. What is the solution?
y = 3x - 4
y=-2x+1
A: (0, -4)
B. (2, 2)
C. (3,5)
D. (1,-1)
Answers
Answer:
D.(1,-1)
Step-by-step explanation:
A positive plus a negative would be a negative but the negative number is less than the positive then you'll have to subtract them both
Answer:
D. 1, -1
Step-by-step explanation:
Trust me g
Is it fair or not? comment your answer below
Answers
Answer:
Step-by-step explanation:
Nope Because it is so-pose to be 200
what value of x makes this equation true -(x+3)=2(x-3)
A. 0
B. 1
C. 2
D. 3
Answers
Answer:
To solve the equation -(x + 3) = 2(x - 3) for x, we can follow these steps:
Step 1: Distribute the negative sign on the left side of the equation:
-(x + 3) = 2(x - 3)
=> -x - 3 = 2(x - 3) (using the distributive property)
Step 2: Expand the right side of the equation:
-x - 3 = 2x - 6
Step 3: Add x to both sides of the equation to isolate the x term on one side:
-x + x - 3 = 2x + x - 6
=> -3 = 3x - 6
Step 4: Add 6 to both sides of the equation:
-3 + 6 = 3x - 6 + 6
=> 3 = 3x
Step 5: Divide both sides of the equation by 3 to solve for x:
3/3 = 3x/3
=> 1 = x
So, the correct value of x that makes the equation true is B. 1.
PLEASE MARK BRAILYISTT :D
Answer:
B, one
Step-by-step explanation:
In order to solve this, you can solve the equation. First, you can use the distributive property to get -x-3=2x-6. If you make the variables on one side and the constants on the other, you will get -3x-3=-6. This can further simplify to -3x=-6. Divide both sides by -3 to get that x=1. Then, the correct answer is B.
PLS HELP, WILL REWARD BRAINLIEST !!
Answers
This is a rectangular pyramid. What shape is the base?
Answers
Answer:
a
Step-by-step explanation:
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who here thinks radiodust from hazbin hotel is hot
Answers
Answer: I came here for math then I found this
Answer:
Sorry but NO
Step-by-step explanation:
supper tough need help
Answers
Answer:
150
Step-by-step explanation:
Total birds= 500
No.of geese= 30*500/100
=150
Let no.of ducks =x
no.of chickens= x+50
No. of ducks+ chickens= 500-150= 350
x+x+50=350
2x=300
x=150
Thus he has 150 ducks.
30% of 500 = 150
There are 150 geese.
chickens > ducks.
500 - 150 = 350
"..50 more chickens than ducks.."
350 - 50 = 300
300 ÷ 2 = 150
150 + 50 = 200
there are 200 chickens
There are 150 ducks
Find the ratio in the lowest terms of length to width for a rectangle with length 4 and width 2.
Answers
Hope this helps
Answer:
2:1
Step-by-step explanation:
4/2 is the same as 2/1
:)
Write and solve an equation that represents the following math sentence.
Twenty-four equals the sum of 10.5 and the quotient of a number and 4.5.
24 = 10.5 + 4.5m; m = 60.75
24 = 10.5 + 4.5m; m = 3
24 equals 10.5 plus m over 4.5; m = 3
24 equals 10.5 plus m over 4.5; m = 60.75
Answers
Answer:
24 = 10.5 + 4.5m; m = 60.75
Step-by-step explanation:
Answer:
24=10•5+4•5m؛m=60•75
24=10•5+4•5m؛m=
24 equal 10•5plus m over 4•5؛m=
24 equal 10•5 plus m over 4•5؛m=60•
Step-by-step explanation:
I don’t get it, what am I supposed to be multiplying!?!
Answers
Answer: 5400
Step-by-step explanation: image attached
Answer:
5400
Step-by-step explanation:
we need to calculate the area of big box (prism).
volume = 4 1/2 X 5 X 3 3/4
= 84.375 in³.
volume of small cube = 1/4 X 1/4 X 1/4
= 0.015625 in³.
now we need to find how many of the small ones go into the big one.
84.375/0.015625
= 5400.
Why is it necessary to use the Distributive Property first and then
combine like terms to solve 7(5 + 2x) + x = 65?
Answers
Answer:
It is necessary to use the Distributive Property first and then
combine like terms to solve 7(5 + 2x) + x = 65 because if you don't you will get a different answer
Which is the larger unit of measure? *
A.yard
B.foot
Answers
Answer:a yard is longer
Step-by-step explanation:
A construction crew is lengthening a road that originally measured 41 miles. The crew is adding one mile to the road each day. Let L be the length (in miles) after D days of construction. Write an equation relating L to D. Then use this equation to find the length of the road after 38 days.
Answers
38D+41=L
Answer:
We can simply find our answer and this is our solution
38D+41=L
Step-by-step explanation:
Please help me asap... (=.= ) Find the volume of this cone... Thank you!♡
Answers
Answer: 157.08
Step-by-step explanation:
157.08isAnswer:pl z give me brianliest or the other guy have a nice day
Step-by-step explanation:
I need help on this question please.
Answers
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Keira said that if 6 tickets are sold, there should be 2 tickets left. Is Keira correct?
Answers
According to Keira, if 6 tickets are sold, there should be 2 tickets left. However, we don't have any information about the initial number of tickets available.
If the total number of tickets initially was 8, and 6 tickets were sold, then there would indeed be 2 tickets left, supporting Keira's statement.
However, if the total number of tickets initially was less than 8, or if the statement doesn't specify the initial number of tickets, we cannot determine if Keira's statement is correct.
Therefore, without additional information, we cannot determine the accuracy of Keira's statement.
Can someone please answer these? Thanks!!!
Answers
Answer:
Number 1: 3 hours.
Number 2: $2434.04
Step-by-step explanation:
3/4 + 3/4 = 1 1/2 (after some simplifying)
1 1/2 + 1 1/2=3. She practiced 3 hours.
Number 2 will be harder to explain. We have 3 sides. That means 90 1/4 x 3. That is 270 3/4. 270 x 8.99 (8.99 per foot) gets us 2427.3, 3/4 x 8.99 (rounded to nearest hundreths) gets us 6.74. We add that together, and we get $2434.04.
I am pretty sure about 1, although not so sure about 2. Hope that helps you.