Which equation represents a proportional relationship? Oy=2(x + 1) Oy=2 o y = 4x + 3 o y = 32x y
Answer:
y=32x shows a proportional relationship.
Step-by-step explanation:
We need to find an equation that shows the proportional relationship.
If x and y are proportional to each other, it will look like,
y = mx
Where
m is constant of proportionality
Out of 4 option, option (4) is y=32x, it shows the proportional relationship where the value of m is equal to 32.
The equation that represents a proportional relationship is y = 32x
What is a proportional relationship?A proportional relationship usually has the form:
y = kx
Where:
y = dependent variable k = constant of proportionality x = independent variableIn this equation: y = 32x
y = dependent variable 32 = constant of proportionality x = independent variableTo learn more about proportional relationship, please check: https://brainly.com/question/1266676
Seven less than half the number is equal to -24. What is the number?
The number is -34
What is number?A number is an arithmetic value used for representing the quantity and used in making calculations.
Given that, seven less than half the number is equal to -24.
Let the number be x,
Therefore,
(x/2) - 7 = -24
(x/2) = -17
x = -34
Hence, the number is -34
For more references on numbers, click;
https://brainly.com/question/17429689
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Hi this is algebra:
Question: [tex](x^{3} - x^{2} + 4) - ( 3x^{3} - 2x^{2} + 3)[/tex]
Answers Choices:
(The picture is the answer choices, also ignore the circled one I think I got it wrong)
Answer:
b. -2x^3 +x^2 +1
Step-by-step explanation:
(x^3 - x^2 + 4) - (3x^3 - 2x^2 +3)
x^3 - 3x^3 = -2^3
-x^2 - (-2x^2) = -x^2 + 2x^2) = x^2
4 - 3 = 1
A jar has 250 marbles in it, 40 of which are red. What is the largest sample size we can take from the jar (without replacement) if we want to use the binomial distribution to model the number of red marbles in our sample
Answer:im not forsure
Step-by-step explanation:
-72÷9+[11×{10÷(15÷17-14)}]
Answer:
Step-by-step explanation:
-72÷9+[11×{10÷(15÷17-14)}] =
14960/223=67.08520179
Hope this helps!!
Write the expression with fewer terms. Explain or show your reasoning.
10−3+2
Answer:
Multiple ways to simplify
7+2 (adding 10 and -3)
10-1 (adding -3 and 2)
12-3 (adding 2 and 10)
Step-by-step explanation:
Hope this helps！
You run 1/12 mile in 1/2 minute. How many miles per minute do you run?
Answer:
1/6 miles / min.Step-by-step explanation:
speed = distance / time
= 1/12 mile
1/2 min.
= 1/6 miles / min.
25x^3+5x^2+30x+6=0 solve
Answer:
x = -1/5, x = i sqrt(30)/5, x = -i sqrt(30)/5
Step-by-step explanation:
25x^3 + 5x^2 + 30x + 6 = 0
5x^2(5x + 1) + 6(5x + 1) = 0
(5x + 1)(5x^2 + 6) = 0
5x + 1 = 0
5x = -1
x = -1/5
5x^2 + 6 = 0
5x^2 = -6
x^2 = -6/5
x = +/- sqrt(-6/5)
x = +/- i * sqrt(30)/5
x = i sqrt(30)/5 or x = -i sqrt(30)/5
Write a equation in slope intercept form
Answer:
[tex]y=\frac{1}{2} x-8[/tex]
Step-by-step explanation:
Slope-intercept form is organized in the form y=mx+b, where m is the slope and b is the y-intercept.
Because we're already given the values, we just have to plug them into the equation.
[tex]y=mx+b\\y=\frac{1}{2} x+(-8)\\y=\frac{1}{2} x-8[/tex]
To graph this equation, first plot a point at (0, -8). This is because the y-intercept is -8, meaning that the line crosses the y-axis when y=-8.
Then, plot the next point using the slope. The slope is equal to the rise/run of the line, or the number of units the line travels upwards / the number of units the line travels to the right. Because the slope is 1/2, we know that for every 2 units a point travels to the right, it goes up by 1 unit.
Please see the picture attached.
I hope this helps!
pls ANSWER in you know the Answer
Aiden plant grew 75 inches in 100 weeks. At this rate, how much would it grow in 30 weeks
Answer:
22.5 inches
Step-by-step explanation:
To find the unit rate, you divide the amount the plant grew by the amount of weeks. We learned that the plant grew 75 inches in 100 weeks, so we divide 75/100, to get 0.75. This means that the plant grows 0.75 inches per week, so in 30 weeks, it would grow 22.5 inches. This is calculated by multiplying 0.75 by 30 weeks.
Determine whether the function f(x) = -920 + 6 + 2 is even, odd or neither.
Answer:
Even
Step-by-step explanation:
The answer is -912 which is even because it ends with a 2.
I hope this helps. Your Welcome:)
A certain ride at an amusement park requires that children be at least 50 inches tall but no more that 65 inches tall. Which of the following absolute values best represents this restriction, where h represents height?
Answer:
|h-57.5| less than or equal to 7.5
Step-by-step explanation:
Since the question states that a child must be 50 and 65 inches, plug in values that are within this range and determine which answer choice gives a TRUE relationship. Choose 60 for h.
Also, I just did it.
Why are the two triangles congruent?
Answer:
probably A
Step-by-step explanation:
the two triangles are congruent because of the angle side angle postulate
I would like the question In the picture explained and answered
Answer:
f(-1) = 3, f(3) = 3
Step-by-step explanation:
This question requires that you choose which of the two equations to uses given the value of x. -1 < 1 so you choose equation f(x) = -x + 2 for f(-1). 3 > 1 so you choose f(x) = x² - 4x + 6 for f(3)
Find the total cost of a jacket for $55 with a sales tax of 2%
Answer:
$56.10
Step-by-step explanation:
55.00 × .02 = 1.10
55.00 + 1.10 = $56.10
If you get a raise from $12 per hour to $15 per hour, what is the percent change?
Answer:
25% change
Step-by-step explanation:
(15 - 12) / 12 = 3/12 = 1/4 = 0.25
Write down the coordinates of point B?
Answer:
The answer is 4,5.
Step-by-step explanation:
Go over 4 times and go up 5, and there is your answer.
Write the equation that passes through the following points:
(1,1) and (3,3)
Answer:
y=x
Step-by-step explanation:
That's legit it. Type it into a graphing calc and it goes through(1,1) ad (3,3).
A line passes through the points (4, - 1) and (2,3) what is the slope of the line?
Answer:
3-(-1)/2-4
=4/-2
=-2
slope=-2
What is the square root of x?
The smallest bone in the human body is the stapes (or stirrup) in the inner ear, at about 3 mm. The largest bone is the femur, which is about 480 mm in length in an average male. About how many times smaller is the stapes than the femur in the human body?
Answer:
160
Step-by-step explanation:
It's simple you have to do 480 divided by 3 and you will get 160. To check if you multiply 3x160 it would equal 480. So 160 times larger. Hope this helps!
On what interval(s) of x is f(x) increasing?
On what interval(s) of x is f(x) decreasing?
Answer:
Increasing → (-∞, -0.5)
Decreasing → (-0.5, ∞)
Step-by-step explanation:
From the picture attached,
Vertex of the parabola represents the highest point of the curve of a quadratic function 'f'.
Left part from the vertex is increasing and the right side is increasing.
x-coordinates of the vertex,
x = -0.5
Therefore, graph of the function is increasing in the interval (-∞, -0.5)
And decreasing in the interval (-0.5, ∞).
Owen and his children went into a restaurant where they sell hotdogs for $4 each and tacos for $2.50 each. Owen has $60 to spend and
buy a minimum of 18 hotdogs and tacos altogether. If x represents the number of hotdogs purchased and y represents the number of tac
purchased,
Answer:
Hotdogs is 10
and Tacos 8 in numbers purchased
Step-by-step explanation:
Step one:
given data
Le x represents the number of hotdogs purchased
and y represents the number of tac
hotdogs = $4 each
and tacos = $2.50 each
The total amount at hand = $60
Step two:
The systems of the equations for the situation is given as
4x+2.5y= 60---------1
x+y=18-----------------2
Required
The number of Hotdogs and Tacos purchased
from 2
x= 18-y
put x= 18-y in eqn 1
4(18-y)+2.5y= 60
72-4y +2.5y=60
collect like terms
-4y+2.5y=60-72
-1.5y= -12
divide both sides by -1.5
y= -12/-1.5
y= 8
put y= 8 in eqn 2
x+8=18
x= 18-8
x= 10
Can someone help asap
Answer:
IM GEORGE FLOYD
Step-by-step explanation:
Answer:
i would be 22.5 or 22 minutes and 30 seconds becuase 45 times 30 is 1350 and if you do it by 60 because thats how many seconds are in a minute you get 22.5 or 22 mins and 30 seconds
brainliest?! thank you !
Step-by-step explanation:
There are 5 girls for every 4 boys in the class. What is the ratio of boys and girls?
A. 5 to 4
B. 1 1/4
C. 4 to 5
Answer:
a
Step-by-step explanation:
give branlest pls
how to write 7,-5 into slope intercept form
Answer:
hey actually its i dont know bro help me get some points
Please help! 20 pts and brainliest!! An isosceles triangle has an angle that measures 124°. Which other angles could be in that isosceles triangle? Choose all that apply. 124, 28, 65, 41
Answer:
Step-by-step explanation:
In an isosceles triangle, by definition two of the three sides of the triangle are equal to one another. Therefore, the angles opposite to these sides must also be equal. And considering the Triangle Sum Theorem, the angles of a triangle must add up to 180 degrees, the angle that measures 124 degrees cannot be be equal to another angle due to the fact that the sum of them would exceed 180. Therefore let x be the angle:
124+2x=180
2x=56x=28
Please brainlest!
ABC has A(-3,6),B(2,1),and C(9,5) as its vertices the length of side AB is units . The length of side BC is ?units . The length of side AC is ? Units .ABC ?
Answer:
The length of side AB is [tex]\sqrt{50}[/tex] units.
The length of side BC is [tex]\sqrt{65}[/tex] units.
The length of side AC is [tex]\sqrt{145}[/tex] units.
Step-by-step explanation:
To find the length of each side, we use the formula for the distance between two points.
Distance between two points:
Points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]. The distance between them is given by:
[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Side AB:
Points [tex]A(-3,6),B(2,1)[/tex]. So the distance between them is:
[tex]D = \sqrt{(2-(-3))^2 + (1-6)^2} = \sqrt{50}[/tex]
The length of side AB is [tex]\sqrt{50}[/tex] units.
Side BC:
Points [tex]C(9,5),B(2,1)[/tex]. So the distance between them is:
[tex]D = \sqrt{(2-9)^2 + (1-5)^2} = \sqrt{65}[/tex]
The length of side BC is [tex]\sqrt{65}[/tex] units.
Side AC:
Points [tex]A(-3,6),C(9,5)[/tex]. So the distance between them is:
[tex]D = \sqrt{(9-(-3))^2 + (5-6)^2} = \sqrt{145}[/tex]
The length of side AC is [tex]\sqrt{145}[/tex] units.
What is the perimeter of this triangle?
(-4,5)
(8,5)
(8,-4)
A. 36 units
В.
39 units
33 units
D
42 units
Answer:
Perimeter of triangle = 12 + 9 + 15
= 36 units
Therefore, option A is correct.
Step-by-step explanation:
The given points
(-4, 5)(8, 5)(8, -4)From the table, it is clear the side containing the line segment joining the points (-4, 5) and (8, 5) is a straight horizontal line.
Thus, the length of the horizontal distance from the points (-4, 5) and (8, 5) will be:
8-(-4) = 12 units
From the table, it is clear the side containing the line segment joining the points (8, 5) and (8, -4) is a straight vertical line.
Thus, the length of the vertical distance from the points (8, -4) and (8, 5) will be:
5-(-4) = 9
Now, finding the length of the side containing the segment (8, -4) and (-4, 5) using the formula:
[tex]\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}[/tex]
[tex]=\sqrt{\left(-4-8\right)^2+\left(5-\left(-4\right)\right)^2}[/tex]
[tex]=\sqrt{\left(-4-8\right)^2+\left(5+4\right)^2}[/tex]
[tex]=\sqrt{12^2+9^2}[/tex]
[tex]=\sqrt{144+81}[/tex]
[tex]=\sqrt{225}[/tex]
[tex]=\sqrt{15^2}[/tex]
[tex]\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^n}=a[/tex]
[tex]=15[/tex]
We know that the Perimeter of a rectangle is the length of all the sides of the triangle. Therefore, combining all the lengths of the line segments
Thus,
Perimeter of triangle = 12 + 9 + 15
= 36 units
Therefore, option A is correct.
A computer is normally $550 but is discounted to $385. What percent of the original price does Mark pay?
Can someone help me?
Answer:
70%
Step-by-step explanation:
385/550 giving you a decimal of 0.7 which is 70%