Determine whether the values in the table represent a direct variation. If yes, write an equation to represent the relationship.
Answers
Answer:
No
Step-by-step explanation: No unit rate
Answer:
no
Step-by-step explanation:
there is no direct variation the changes in both x and y are not constant. In y, it is first 62 then it becomes 140. The change here is 78. However, for the next two numbers ( 140 and 256), the change should also be 78. That's how you would know that it is constant and represents a direct variation. But in this case it isn't.
Related Questions
What is the equivalent ratio of 30
Answers
Explanation:
Please help!
The illustration below shows the graph of y as a function of x.
Complete the following sentences based on the graph of the function.
- As x increases, y _______ (increases/decreases).
- The rate of change for y as a function of x is not __________ (constant/constant), therefore the function is ________ (linear/nonlinear).
- For all values of x, the function value y ___ (≤/≥/=) 0.
- The y-intercept of the graph is the function value y = ____.
- When x = 1, the function value y = ___.
Answers
Answer: As "x" increases "y" *decreases*
y as a function of x is not *constant*
Therefore the function is *nonlinear*
For all values of x, the function value y *≥* 0.
The y intercept of the graph is *8*
x=1 function value of y is *5*
The given function is an exponential function and its qualities are explained below.
What is a logarithmic function?The opposite of an exponential function is a logarithmic function. A log function and an exponential function both use the same base. An exponent is a logarithm. f(x) = bx is how the exponential function is expressed. The formula for the logarithmic function is f(x) = log base b of x.
As we can observe in the graph.
The illustration below shows the graph of y as a function of x.
Complete the following sentences based on the graph of the function.
- As x increases, y decreases.
- The rate of change for y as a function of x is not constant, therefore the function is nonlinear.
- For all values of x, the function value y > 0.
- The y-intercept of the graph is the function value y = 8.
- When x = 1, the function value y = 5.
Learn more about logarithmic functions here:
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I NEED HELLPP PLEASE
Answers
i made this so you can get points lol soo how was your day?
Answers
Answer:
just woke and interesting
Answer:
awwwwwzz it's so cute and nice<3<3<3<3<3<3
Step-by-step explanation:
my days going pretty good hbu?
A school with 1,273 students has many after-school activities. One of these activities is gymnastics. If 47 students participate in the gymnastics program, what percent of the student population participates in gymnastics? Round your answer to the nearest tenth of a percent.
A.2.7 percent
B.4.2 percent
C.4.4 percent
D.3.7 percent
Answers
Answer:
D 3.7%
Step-by-step explanation:
There are approximately 40,000 people that live in a city. A sample of 20,000 people from that city are asked and 8,000 live in an apartment.
How many people from the entire population would you expect to live in an apartment?
Answers
Answer:
16,000 people
Step-by-step explanation:
Let's write a ratio
8,000:20,000
Let's write another ratio
x:40,000
We can write a percent proportion.
[tex]\frac{8,000}{20,000} =\frac{x}{40,000}[/tex]
We can see that the relationship between the denominators is multiplied by 2 so that means the relationship between 8,000 and x is x is 2 times greater than 8,000
Let me know if you have any questions.
Answer:
16000
Step-by-step explanation:
Oop. Let's see about this one.
Answers
Answer: b
Step-by-step explanation: because there were only four friends
1/2 is half of something. A shows a box with 4 squares with 2 shaded pink which means half of the box is shaded. Hope this helps!
Pls help it is due today
Answers
I'LL GIVE BRAINLIEST
Answers
Answer:
B. Square
Step-by-step explanation:
Cross-section means the shape in the middle of the main given shape. Which is a square shape in this case. A square has four sides and each side is 90 degrees.
Mika wrote the table of points of ...
X Y
0 2
3 5
6 8
What explains whether or not Mika has described a proportional relationship.
Answers
Answer:
She described a proportional relationship because for each X value there is a Y value, So if X marks 1, you add 1 to Y, being the starting value of Y 2
For the table prepared by the Mike, he has "not" described a proportional relationship.
What is Proportionality?Equivalence between two ratios in algebra is called proportionality. A and B are in the same ratio as C and D in the formula a/b = c/d.
Step 1: Calculation for the slope of the points:Table prepared by Mike is,
X Y
0 2
3 5
6 8
The ratio of the y-to-x value differential between two locations, as seen on a two-dimensional plane.
[tex]\frac{5-2}{3-0} =\frac{8-5}{6-3} =\frac{8-2}{6-0} =1[/tex]
Since, the slope is the same, the relationship is linear.
Step 2: Check for proportional relationship.The function is said to be linear if we plot these points on a line and obtain a straight line. If this line passes through point (0,0), the connection will be proportional.
Equation of line passing through two points is obtained by,
=> y-b = m(x-a)
Consider point (0,2)
=> y-2 = 1×(x-0)
As, y = x+2, is equation of linear function.
Step 3: Checking whether the line passes through origin (0,0)LHS, at ,(0,0) = 0
RHS at (0,0 )= 0+2=2
LHS≠RHS
Therefore, even though the supplied points add up to a linear function, there is no proportional relationship.
To know more about, two dimensional figures, here
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This is for Area, this would be appreciated.
Answers
I can't figure this out!
Answers
X-6 + 8x + 24 = 180
9x + 18 = 180
9x = 162
Answer is: x = 18
HELPS MEH PLZ + 20
its not hard to help me
Answers
Answer:
Onions- $1.20
Potatoes- $1.44
Step-by-step explanation:
.32p+.48n=
.32(4.5)+.48(2.5)=
1.44+1.2=264
1 pound of onions = $0.48
(POTATOES)
4 pounds of potatoes = 0.32 x 4 (= 1.28)
0.5 pounds of potatoes = 0.32 / 2 (= 0.16)
1.28 + 0.16 = 1.44
4.5 Pound Of Potatoes = $1.44
(ONIONS)
2 pounds of onions = 0.48 x 2 (= 0.96)
0.5 pounds of onions = 0.48 / 2 (= 0.24)
0.96 + 0.24 = 1.2 = 1.20
CONCLUSION
4.5 pounds of potatoes is $1.44, and 2.5 pounds of onions is $1.20
I hope this helps!! (つ ◕◡◕ )つ
square root of n^2, if n 0
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3/4 x 1 = 3/4 x ?/? = 21/28
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?/? = 7/7
Help WILL GIVE BRAINLIEST
Answers
Answer: oooo i know this one its 4 hopefully i helped
Step-by-step explanation:
What is the value of x? WILL MARK BRAINLIEST
Answers
24^2 + 7^2 = x^2
576 + 49 = x^2
x^2 = 625
√x^2 = √625
x = 25
Fill in the model to represent the percent.
20 %
Answers
Answer:
D
Explanation: The graph is split into 5 and therefore is split into 20 percent by piece
Irene is 13 and
3
4
years old. Sheila is 1 and
1
2
years older than Irene, and Jane is 1 and
1
5
years older than Sheila. How old is Jane?
Answers
Answer: 12 years older
Step-by-step explanation:
Please help me! The questions are below! Thanks.
Answers
Answer:
I think it would be B
Step-by-step explanation:
because it has to be exact and the height can be the same so it has to be 1.4 more so yeah
Could somebody help me with Geometry? THANKS!!!!!!!!!!!!!!!!!!!!!
*spam answers will NOT be tolerated*
Answers
I'll do problem 1 to get you started.
The answer to problem 1 is 3400 miles
============================================================
Explanation for problem 1:
We're asked to find the perimeter, which is the total distance around the exterior or outside. In other words, we need to add up the four side lengths of this quadrilateral.
We'll need the distance formula to find the lengths of the slanted sides AB and BC
----------------------------------------
Let's first find the length of segment AB
A = (x1,y1) = (0,0)
B = (x2,y2) = (400,300)
d = Length of AB
[tex]d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(0-400)^2 + (0-300)^2}\\\\d = \sqrt{(-400)^2 + (-300)^2}\\\\d = \sqrt{160000 + 90000}\\\\d = \sqrt{250000}\\\\d = 500\\\\[/tex]
The distance from A to B is 500 miles. This is the same as saying segment AB is 500 miles long.
----------------------------------------
Now find the length of segment BC
B = (x1,y1) = (400,300)
C = (x2,y2) = (-800,800)
d = length of BC
[tex]d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(400-(-800))^2 + (300-800)^2}\\\\d = \sqrt{(400+800)^2 + (300-800)^2}\\\\d = \sqrt{(1200)^2 + (-500)^2}\\\\d = \sqrt{1440000 + 250000}\\\\d = \sqrt{1690000}\\\\d = 1300\\\\[/tex]
----------------------------------------
The length of CD is fairly easy to find without needing the distance formula. This is because it is a vertical line. We subtract the y coordinates of C and D to get 800-0 = 800. So CD is 800 miles long.
Segment DA is a similar story. But we subtract the x coordinates. This only works for horizontal lines. DA is 800 miles long because |-800-0| = 800. Absolute value is used to make sure the distance is never negative.
----------------------------------------
To summarize everything so far, we found these four side lengths
AB = 500BC = 1300CD = 800DA = 800The perimeter is going to be the sum of those four sides, leading to...
perimeter = sum of sides
perimeter = AB+BC+CD+DA
perimeter = 500+1300+800+800
perimeter = 3400 miles
This is the total distance traveled if you started at city A, went to B, then to C, then to D, and then finally went back to A.
Answer:
The total distance is 3400 miles
Step-by-step explanation:
Given the following points:
A(0,0)
B(400,300)
C(−800,800)
D(−800,0)
we can find the distance between each of them using the following equation:
d(X,Y)=
√(x2
−x1
)2
+(y2
−y1
)
2
in this case, we only need to find the distance from A to B and from B to C:
d(A,B)=
√(400−0)2
+(300−0)2
=
√160000+90000
=
√250000
=500
d(B,C)=
√(−800−400)2
+(800−300)2
=
√1440000+250000
=
√1690000
=1300
next, notice that the distance from C to D and from D to A are on lines parallel to the x-axis and the y-axis, then, we can see that the distances are the follwing:
d(C,D)=800
d(D,A)=800
then, the total distance traveled will be the perimeter of the polygon, Thus, adding the distances we have:
P=d(A,B)+d(B,C)+d(C,D)+d(D,A)=500+1300+800+800
=3400
⇒P=3400miles
please help me on this i will give you brainliest
Answers
Answer:
option c. 21+3=y+11
............
C!!!! 21+3=y+11
Can you guys please help me with this? I will give brainliest and 20 points if you help me.
Answers
Answer:
Step-by-step explanation:
1) a) equations: 3x+21 and 6x -60
b) value of x: 3x+ 21=6x-60 ( set them equal to each other because they are equal, then solve)
3x+21=6x-60
-3x=-81
x= 27
c) replace 27 in both equations to find the angle measure.
3(27)+21= 102
6(27)-60= 102
2) a) equations: 12x-18 and 8x+10
b) value of x: 12x-18=8x+10( set them equal to each other because they are equal, then solve)
12x-18=8x+10
4x=28
x= 7
c) replace 7 in both equations to find angle measure.
12(7) -18 = 66
8(7)+10= 66
angle measure: 66
3) a) equations: 7x+9 and 5x+3
b) value of x: to find value of x here, first know that the these two equations will add up to 180. So, set them up to be equal to 180.
7x+9+5x+3=180
Then solve.
12x+ 12=180
12x=168
x=14
c) angle measure: replace the 14 in the x of the two equations.
7(14) +9 = 107
5(14) +3= 73
add the two angle measure together to see if they add up to 180.
107 + 73 = 180 correct! :D
Determine the commission using your equation
How much commission will the salesperson earn for selling a $25,000 car?
Answers
Answer:
It would be doubled so 50,000
Step-by-step explanation:
Good Luck! I might give Brainliest.
Answers
Answer:
hours 1 and 2
Step-by-step explanation:
PLEASE GIVE BRAINLYIEST
A family of two adults and three children is going to a water park. Admission is $32.85 for the water park. Admission is $35.85 for adults and $25.60 for children whats the total cost of the family's Admission.
State your answer. Plz :(
Answers
Answer:
$181.35
Step-by-step explanation:
Admission: $32.85
Adults: 35.85 x 2 = $71.70
Children: 25.60 x 3 = $76.80
Add it all together
$181.35
write y=-2x^2-20x-52 in vertex form then find the axis of symmetry. show your work!
Answers
Answer:
Simplifying
y = 2x2 + 20x + 52
Reorder the terms:
y = 52 + 20x + 2x2
Solving
y = 52 + 20x + 2x2
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Simplifying
y = 52 + 20x + 2x2
Hope it helps =D
In a race, 41 out of the 50 bicyclists finished in less than 38 minutes. What percent of bicyclists finished the race in less than 38 minutes? Write an equivalent fraction to find the percent.
Answers
On the box over 100 put 82, and put 82 in the box on the right
what is the lest comen demomator of 1/8 1/12 and 7/18
A. 216
B. 108
C. 72
D. 48
plz hury i am on a test
Answers
Answer:
72
Step-by-step explanation:
18*4
12*6
8*9
Answer: LCD = 72
Step-by-step explanation:
Rewriting input as fractions if necessary:
1/8, 1/12, 7/18
For the denominators (8, 12, 18) the least common multiple (LCM) is 72.
LCM(8, 12, 18)
Therefore, the least common denominator (LCD) is 72.
Calculations to rewrite the original inputs as equivalent fractions with the LCD:
1/8 = 1/8 × 9/9 = 9/72
1/12 = 1/12 × 6/6 = 6/72
7/18 = 7/18 × 4/4 = 28/72
Find the missing dimension. Use the scale factor 1 : 12.
diameter=21
Answers
Answer:
17.5 millimeters
Step-by-step explanation:
i think
(i like your pfp)