Answers
Answer:
Yes, y varies directly with x. The constant of variation is -3 so the function rule would be y= -3x
Step-by-step explanation:
If you look at the y values in the table, they are just the x values but multiplied by -3.
-3 x (-3) = 9
4 x (-3) = -12
6 x (-3) = -18
Direct variation can be shown by y=kx, where k is a constant. The resulting function creates a linear graph.
Related Questions
Help plz!!!!!!!!!!!!!!!!!
Answers
Answer:
5
Step-by-step explanation:
w-3=-2
first you need to figure out what w stands for
I just started plugging in numbers starting from 1 and when I got to 5 the number fit.
Determine the height of the triangle if the area is 24 square inches and the base is 12 inches.
Answers
Answer:
4
Step-by-step explanation:
We use 1/2base times height to find the area and since we already have an area we just do 24= 6h then we divide 6 on both sides and height equals 4
Answer: 6 inches
Step 1: Subtract 12 because 12 iches is the base.
24 - 12 = 2
Step 2: Divide 12 by 2 because triangles have two equal sides.
12 ÷ 2 = 6
Answer = 6
Find the x-intercept of the graph of y = -10x - 36
The x-intercept is_____
Answers
20 pounds of pet food for
$14.99
Find the unit rate?
Answers
Answer:
$0.75 per pound
Step-by-step explanation:
To find the unit rate, divide the price by the amount you have.
14.99/20 = 0.7495
expand 2t(6t-3) please
Answers
29747 ÷ 5828 × 492 equals what?
Answers
Answer:
2511.2429
Step-by-step explanation:
You should know this this like yr 7 stuff
29747÷ 5828=5.1041523
5.1041523 × 492= 2511.2429
please help me, i don't understand this at all :(
Answers
32 can be simplified to 2^5. this is the fourth root, so you take out four of the 2’s to the outside by the 6. therefore it becomes 6(2) which = 12 along with the other 2 and an x left inside the fourth root “house”. btw i would write it out but brainly doesn’t let me attach pictures for some reason, and i don’t have the symbols on my keyboard. ):
we now simplify 512 in the second term. 512 is the same thing as 32 times 16, which is 2^9. we take out four of the 2’s, leaving us with 2^5. we can take four more 2’s out, leaving us with a 2 and an x in the inside of the fourth root “house”. on the outside we have 2 2’s, leaving us with a product of 4.
third term. 16 can be simplified to 4^2, or 2^4. we can take all four of them out since it’s the fourth root. there are also four x’s, so we take them out, leaving us with 2x. there isn’t anything left in the “house”.
now, we go from left to right. to better illustrate it, i will use “{ }” as the fourth root.
12 {2x} - 4 {2x} + 2x
8 {2x} + 2x . that’s as simplified as it can get. hopefully this helps! ):
what is the difference of −1,098 and -895.9
Answers
Answer:
witha decimal? to
Step-by-step explanation:
Jill jumped 6 1 3feet in the long-jump event. Jill’s best friend jumped 6 5 7feet. How much farther did Jill’s best friend jump? Describe in words the process you used to solve the problem
Answers
Answer:
Subtract 6.13ft from 6.57ft, and you should get .44 as your answer.
Jane's garden is 3.4 meters by 6.5 meters. If fencing costs $2.25 per meter, how much will it cost to put fence around her garden?
Answers
if 2025 students are arranged in equal number of rows and columns find the number of students in each rows
Answers
Answer:
45
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
.....
....,..,.....
Help me please
Find the slope
Answers
Answer:
this is a negative slope.
Step-by-step explanation:
need these 3 problems answered
1.(2x-3)^2+24=0
2.(3x+1)^2-49=0
3.3x^2-12x=-45
Answers
Answer:
ummm ................
A cubic meter (m³) is ________. a cubic centimeter (cm³).
a.equal to
b.smaller than
c.larger than
d.diferent form
Answers
Answer:
It would be larger than
Step-by-step explanation: hope this helps
Write the equation in vertex form using the following information: vertex (4, -6) and a=1.
Submit
Answers
Answer:
y = (x - 4)² - 6Step-by-step explanation:
An equation of a quadratic function in a vertex form is y=a(x-h)²+k, where vertex is (h, k)
vertex (4, -6) means h = 4 and k = - 6
So:
y = 1(x - 4)² + (-6)
y = (x - 4)² - 6
Hummingbirds beat their wings very fast. The smaller the
hummingbird is, the faster its wings beat. The average hummingbird beats its
wings about 3 x 10 3 times a minute. How many times a minute is that, written as
a whole number?
Pls help me! I will give brainliest
Answers
Answer:
A hummingbird's heart beats from 225 times per minute when it's at rest and more than 1,200 times per minute when it is flying. Its wings beat about 70 times per second in regular flight and more than 200 times per second while diving.
Answer: A hummingbird's heart beats from 225 times per minute when it's at rest and more than 1,200 times per minute when it is flying. Its wings beat about 70 times per second in regular flight and more than 200 times per second while diving.
Step-by-step explanation:
Select the correct answer.
Jenny is tracking the monthly sales totals for her boutique. The given piecewise function represents the boutique's monthly sales, in dollars,
where x represents the number of months since Jenny began tracking the data.
(4,000(1.1)
0 < I<3
f(0) = 1001 + 5,024 , 3
- 2 + 5x + 5,630, 6
3
What were the boutique's monthly sales when Jenny first began tracking the data?
A.
$4,000
B.
$5,324
C.
$5,616
D.
$4,400
MacBOOK
Answers
Answer:
what is your question here can you be more specific?
Step-by-step explanation:
Answer:
Please mark me as Brainliest :)
Step-by-step explanation:
A parabola has a vertex of (-2,1) and passes through the point (0,-7). What is the value of amplitude
Answers
Answer:
The value of the amplitude is -2
Step-by-step explanation:
The given parameters are;
The vertex of the parabola = (-2, 1)
The point through which the parabola passes = (0, -7)
The equation of the parabola can be expressed as follows;
y - y₀ = a·(x - x₀)²
Where;
y₀ = The y-coordinate of the vertex = 1
x₀ = The x-coordinate of the vertex = -2
Therefore, we substitute the known values of the coordinates of a point the parabola to get;
-7 - 1 = a·(0 - (-2))²
-8 = 4·a
a = -8/4 = -2
The value of the amplitude a = -2.
In eight minutes, Josh was able to type 496 words. What’s his typing speed in words per minute?
Answers
Answer:
62 words/minute
Step-by-step explanation:
496 words divided by 8 minutes= 62 words in one minute
The elevator that takes passengers from the lobby of the John Hancock Centre in
Chicago to the observation level travels 300 feet in 5 seconds. The observation level
is located on the 100th floor, at 1200 feet above the ground. Find the time it takes
the elevator to travel from the lobby to the observation level. (4)
Answers
Answer:
20 seconds
Step-by-step explanation:
s = Distance traveled by elevator = 300 ft
t = Time taken = 5 seconds
Velocity is given by
[tex]v=\dfrac{s}{t}\\\Rightarrow v=\dfrac{300}{5}\\\Rightarrow v=60\ \text{ft/s}[/tex]
Distance to the observation level from the lobby = 1200 ft
Time taken is given by
[tex]t=\dfrac{1200}{60}\\\Rightarrow t=20\ \text{s}[/tex]
Time taken to reach the observation level from the lobby is 20 s.
How is quadrilateral ABCD related to quadrilateral A'B'C'D' shown below?
Answers
Answer:
i think its a
Step-by-step explanation:
Will Give Brainliest if Correct
Answers
Answer:
(a) 0
(b) -3/26
Step-by-step explanation:
(a)
We essentially plug 1 in for x and 2 in for y.
Our expression is [tex]\frac{2x-y}{y^2+1}[/tex], so making the correct substitutions yields:
[tex]\frac{2x-y}{y^2+1}=\frac{2*1-2}{2^2+1}=\frac{2-2}{4+1} =\frac{0}{5} =0[/tex]
So, the answer for part (a) is 0.
(b)
Again, we're now plugging in 1 for x and 5 for y:
[tex]\frac{2x-y}{y^2+1}=\frac{2*1-5}{5^2+1}=\frac{2-5}{25+1} =\frac{-3}{26} =-\frac{3}{26}[/tex]
So, the answer for part (b) is -3/26.
Step-by-step explanation:
So we have the rational expression [tex]\frac{2x -y}{y^{2} +1}\\[/tex]. All we have to do is to just plug the given values for what x and y are.
Solution of a:[tex]\frac{2x -y}{y^{2} +1}\\ \frac{2(1) -(2)}{(2)^{2} +1} \\ \frac{2 -(2)}{4+1} \\ \frac{0}{5} \\ 0[/tex]
Answer of a:[tex]0[/tex]
Solution of b:[tex]\frac{2x -y}{y^{2} +1}\\ \frac{2(1) -(5)}{(5)^{2} +1} \\ \frac{2 -(5)}{25+1} \\ \frac{-3}{26} \\ -\frac{3}{26}[/tex]
Answer of b:[tex]-\frac{3}{26}\\[/tex]
I need help please it’s a test and I don’t understand
Answers
Answer:
to get x look at that triangle that it is in I know the angles in a triangle add up to 180° so it will be 180 - 63 degrees plus 36 degrees then to get z it will be 36 + 63 because interior angles add up to one exterior angle then to get y addz + 13 degrees then subtract it from 180°
If ΔABC is reflected across the y-axis, what are the resulting coordinates for points A', B', and C'
sketch the reflection on the cordinate plan
Answers
Answer:
Step-by-step explanation:
Reflection across the y axis changes the x value.
Reflection across the x axis changes the y value.
This is counterintuitive, but it is correct.
A'
(-1,6)
B'
(-2,1)
C'
(-5,2)
Do you see what happened. All the values for x become - values because you are moving an equal distance in the -x direction
true or faulse
-7(x^2-5x+3) is the same as -7x^2-35x-21
Answers
Answer:
sup
Step-by-step explanation:
jk it's true
Answer:
False
Step-by-step explanation:
-7(x^2-5x+3) is the same as -7x^2+35x-21 the original question had the wrong sign for the 35x, a negative times a negative is a positive.
Which equation should you use to solve for x?
40°
60°
16x
O 60 + 16x + 40 = 180
O 60 + 40 = 16x
0 60 + 16x = 40
O 60 + 16x + 40 = 90
Answers
Answer:
1st Option
Step-by-step explanation:
All angles in a triangle must add up to 180°.
Step 1: Set up equation
40° + 60° + 16x = 180°
Step 2: Rewrite
60° + 16x + 40° = 180°
Answer:
Option: A.
Step-by-step explanation:
Hey there!
In the given triangle;
60° +16x° + 40° = 180° { Sum of interior angle of a triangle}
100° + 16x= 180°
16x = 180° - 100°
[tex]x = \frac{80}{16} [/tex]
Therefore, X= 5°.
So, Option A (equation) is used for solving the value of"X".
Hope it helps...
what is 300 × = 120,000
there is nothing between the × and = cuz its asking me 300× what = 120,000.
Answers
The answer is 400
First, you must flip the equation.
[tex]120000[/tex] ÷ [tex]300[/tex] = ?
Then, you must simplify the equation.
[tex]1200[/tex] ÷ [tex]3[/tex] = ?
Finally, divide the two terms.
[tex]1200[/tex] ÷ [tex]3[/tex] = 400
Class 6 are going on a trip to a windmill.
The trip costs £3.70 each and there are 26 students in 8A. How much money should be collected?
Answers
If 2a + 3 < 10, then which of these could be a value of a?
a. 6 b. 4 c. 2 d. 10
Answers
Answer:
it's going to be d.
Answer: c
Step-by-step explanation:
2*6=12
12+3=15
15 is not less than 10
2*4=8
8+3=11
11 is not less than 10
2*2=4
4+3=7
7 is less than 10
10*2=20
20+3=23
23 is not less than 10
A baker used 8 bags of flour every 9 days. He used
of a bag cach day
L20 nens in 5 seconds What is the rate
Answers
Answer:
0.8 repeating or 8/9 bags a day
Step-by-step explanation: