Answer: r = 1 10/11
Step-by-step explanation: The quantities x and y are proportional.
The direct variation between {x] and {y} is discussed below.
What is direct variation?Direct variation of a quantity {y} with respect quantity {x} means that the value of {y} increases as the the value of {x} increases. Mathematically -
y = Kx
K = y/x
where -
{K} is scale factor.
Given is that the quantities {x} and {y} are proportional.
The general equation of a straight line is -
y = mx + c
{m} - slope
{c} - intercept along the y - axis
The straight line graph also represents a direct variation between {x} and {y}. We can write -
m = (y - c)/x
Here the ratio of (y - c)/x is always constant.
So, we can write -
(y₁ - c)/x₁ = (y₂ - c)/x₂ = m = k
for c = 0, we can write -
y₁/x₁ = y₂/x₂ = m = k {constant}
Therefore, the direct variation between {x] and {y} is discussed above.
To solve more questions on direct variation, visit the link below -
brainly.com/question/14254277
#SPJ3
A cross section is defined as where a —————
intersects a 3-D shape.
Answer:
plane intersects a 3D shape
is 7/8 natural, whole, integer, rational, irrational
Find the equation of the parabola with its focus shown below. GRAPH ATTACHED, 15 POINTS! Due in 2 hours, will give BRAINLIEST!
Answer:
Solution : Option A
Step-by-step explanation:
Let' go through all the options we have here.
• x + 2 = - 1 / 8y² converted into standard form will be 4(- 2)(x - (- 2)) = (y - 0)². The parabola properties will be similar to the ones of this parabola, vertex = (- 2,0) and focal length = - 2. It hence is most likely to be the parabola provided to us.
• y = 1 / 8(x + 2)² is an up - down facing parabola, and hence is not at all similar to the given parabola
• x - 2 = 1 / 8y² will be a graph reflected over the y - axis with respect to the graph x + 2 = - 1 / 8y². It hence does not match the given parabola
• y = 1 / 8(x + 2)² will be a graph reflected over the x - axis with respect to the graph of y = 1 / 8(x + 2)². It will hence be a down - up facing parabola, which does not match the given parabola
S=(n-2) * 180. Solve for n.
Answer: n = S/180 + 2
Step-by-step explanation:
Which expression gives the distance between the points (3, -8) and (3, -19)? *
1 point
Captionless Image
|3 - 3|
|-19 - (-8)|
|3 + (-19)|
|3 - (-8)|
| 3 + (-19) |
Answer:
| - 19 - (- 8) |
Step-by-step explanation:
Given that the 2 points have the same x- coordinate, then the distance between the 2 points is the difference in the y- coordinates, that is
distance = | - 19 - (- 8) | = | - 19 + 8 | = | - 11 | = 11
Or
distance = | - 8 - (- 19) | = | - 8 + 19 | = | 11 | = 11
· f(x) = 3x4 - 4x2 + 2
Answer:
If the x is a multiplying sign then the answer is 6, but
if the x is the letter x then it will be x=4
Answer:
theres 8
Step-by-step explanation:
8 grade math dont really uderstand it so please explain also
Answer: Girls weekly: 25; Girls never:40; boys yearly: 25; boys never: 20; boys total:80 monthly total: 30
Step-by-step explanation:
You have to figure it out by adding or subtracting where ever it needs to be like in girls weekly you have to subtract the weekly total and the boys weekly to figure it out.
PLEASE HELP explain how you can prove two circles are similiar
Answer:
By Looking at the shapes and sizes
Step-by-step explanation:
If you can try and look at the shape and size of it, if you can draw it, draw it on a piece of paper, trace them both, but in the same spot, you didn't specificize, if it was a sphere or just a regular circle or not, so thats all i can tell you.
-7-5+3=1 ? true or false
Bob and bart plan to buy one computer for $500 strictly for gaming purposes. Games cost $60 each
Answer:
500+60g
Step-by-step explanation:
This is the answer because every game costs $60 and you represent everytime you buy a game by using 60g. And you can't put 500 g because that is not what each game costs 500 represents how much the computer is.
A 50 litre solution of acid and water contains 10 litres of acid. How much water must be added to make the solution 8 % acidic. Will mark brainest to whoever answers.
Answer:
Your welcome!Step-by-step explanation:
Acid present in the solution = 10 L
Required volume concentration of acid = 8/100
Let x amount of water be added to achieve the required %.
In the new solution, proportion of acid= 10/(50+x)
Therefore,
10/(50+x) = 8/100
x=75
Ans: 75 L of water must be added to the solution
5. Daniel is driving at a speed of 1 kilometer
per minute. Approximately how fast is he
traveling in miles per hour?
mi
A 0.62
C 37
hr
mmmm
B 1.6
mi
hr
D 96
Answer:
c. 37
Step-by-step explanation:
I just looked it up lol. hope this helps tho :p
An archer hits a bullseye 64% of the time. What is the probability the archer hits
the bullseye exactly 4 times during 10 total attempts?
a. 242
b. .365
C..077
d. 168
Answer:
C. 0.077
Step-by-step explanation:
Use binomial probability.
P = nCr pʳ qⁿ⁻ʳ
where n is the number of trials,
r is the number of successes,
p is the probability of success,
and q is the probability of failure (1−p).
n = 10, r = 4, p = 0.64, q = 0.36.
P = ₁₀C₄ (0.64)⁴ (0.36)⁶
P = 210 (0.64)⁴ (0.36)⁶
P = 0.077
– 5 | 3 z + 8| –5 = -20
I'm assuming you want to solve for z :)
By simplifying both sides of the equation, then isolating the variable.
Exact form:
z= -5/3 , - 11/3
Mixed number form:
z= −1 2/3 , −3 2/3
Answer:
There are two solutions, -5/3 and -11/3
Step-by-step explanation:
Move -5 to the right side and add:
-5 | 3x + 8 | = -15
Get rid of the absolute-value bars by splitting them into negative and positive cases.
Solve negative case
-5 ( 3z + 8 ) = -15
Distribute or Multiply:
-15z - 40 = -15
Rearrange and Add:
-15z = 55
Divide both sides by 15:
-z= 11/3
Multiply both sides by -1:
z= -11/3
Solve negative case
5 ( 3z + 8 ) = -15
Distribute or Multiply:
15z + 40 = 15
Rearrange and Add:
15z = -25
Divide both sides by 15:
z = -(5/3)
Answer
z=-11/3
z=-5/3
The product of two numbers subtracted by 44, the result is 100. Find the numbers.
Answer: the numbers can be 16 and 9, 6 and 24 or other factors of 144
Which fraction is equivalent to that number? HELP NEEDED ASAP
Answer:
2/3
Step-by-step explanation:
Let n = the repeating, non-terminating number 0.666...
We now have n = 0.666666...
We want the number n in the form of a fraction.
Since only 1 digit repeats, the 6, use a 1 followed by 1 zero, which means the number 10. Now multiply both sides by 10 and write the original equation below it.
10n = 6.666666...
n = 0.666666...
Subtract the bottom equation from the top equation.
9n = 6
n = 6/9
n = 2/3
Pls help ASAP! I will make you brainliest!! (Number 12.)
Answer:
The lengths of the sides are 30 ft, 60 ft, 15 ft, 45 ft
Step-by-step explanation:
The perimeter is 150 ft, the length of the fence.
We add the lengths of the sides and set equal to the perimeter. Then we solve for x. Once we know x, we find the length of each side.
x + 2x + 0.5x + 45 = 150
3.5x = 105
x = 105/3.5
x = 30
Lengths of sides:
x = 30
2x = 2(30) = 60
0.5x = 0.5(30) = 15
45
Answer: The lengths of the sides are 30 ft, 60 ft, 15 ft, 45 ft
Graph this function:
y–3=2(x–5)
Here you go. This is the graph of the function:
y - 3 = 2(x - 5)
Answer:
slope = 2 y intercept = ( 0, -7 )
Step-by-step explanation:
x y
0 -7
7/2 0
I need help and if you can’t see the letters zoom in
Answer:
3) 45°
4) 135°
5) <WAX and <XAZ
6) <WAX and <WAU
7) <WAX and <YAU
8) <WAX and <XAZ
Step-by-step explanation:
3) 45°
4) 135°
5) <WAX and <XAZ
6) <WAX and <WAU
7) <WAX and <YAU
8) <WAX and <XAZ
Emily is saving up to buy a new phone. She already has $75 and can save an
additional $7 per week using money from her after school job. How much total
money would Emily have after 4 weeks of saving? Also, write an expression that
represents the amount of money Emily would have saved in w weeks.
What would the saving be after 4 weeks?
Saving after w weeks?
Answer: saving after 4 weeks: 103
Saving after w weeks:7w+75
What is the range of the function graphed below?
Answer: C -3< y ≤ 3
Step-by-step explanation:
Starting from the lowest point of the y coordinate to the highest point of the y coordinate. The lowest point is -3 and highest point is 3.At the y coordinate -3 there is an open circle which means we are excluding it and at the highest point 3 there is a closed circle so we will have to include that.
Is the following relation a function?
Answer:
no
Step-by-step explanation:
(5y+3)(4y+9)=66 What is the value of y
Answer:
y = 39/20
Step-by-step explanation:
(20y + 27 = 66
20y = -27 + 66
20y =39
y = 39/20
For how many games is the total cost of bowling equal for the two bowling establishments? Family bowling, game $4, shoes $1. Knight owl bowling, game $3.75, shoes $2.
$2^4785733858979-|&duts7stpzo64suprxxruxpu5dp7d058d805d0y7f
Use interval notation to identify the range of the exponential function
y=-3^x-2+4
HELP
Answer:
Hey there!
The range is (-∞, 2)
Hope this helps :)
if 3 point A,B, and C are collinear and B is between A and C then?
Step-by-step explanation:
Collinear points: Three points A, B and C are said to be collinear if they lie on the same straight line. There points A, B and C will be collinear if AB + BC = AC as is clear from the adjoining figure.
Pat wants to measure the length of a table. She'll use a measuring tape. Which units should Pat use to express the length?
A. Pints
B. Degress
C. Inches
D. Moles
Answer:
Inches is the best answer
Step-by-step explanation: This is because it is the only one that actually makes sense in the context of the question. Pint is for liquids, degrees is for angles, and moles is for molecules.
-(1+7x)-6(-7-x)=36
HELP
Answer:
x=5 Brainliest would be nice :)
Step-by-step explanation:
How would you express b⃗ using unit vectors? express your answers in terms of the unit vectors x^ and y^. use the unit vector button under the templates menu in the answer box to create unit vectors?
Answer:
This question seems to be incomplete, so i will answer it in a general way.
If we have a vector;
b = (b1, b2)
where b1 and b2 are the x-component and the y-component (respectively) of the vector b, then we can write the vector as:
b = (b1, b2) = b1*x^ + b2*y^
Where x^ = (1, 0) and y^ = (0, 1)
Are the unit vectors.
Put the following equation of a line into slope-intercept form, simplifying all
fractions.
2x +y = -5
Answer:
All you have to do is break it down
Step-by-step explanation:
2x+y=-5
y =2x-5