Answer: 24
i got the same question
URGENT PLEASE HELP!!Which is an equation of the line that has a slope of 2 and passes through the point (3,1)?
A. y=2r +5
B. y = 2x + 1
C. y = 2x - 1
D. y = 2x - 5
Answer:
The equation of the line is y = 2x - 5 ⇒ D
Step-by-step explanation:
The form of the linear equation is y = m x + b, where
m is the slopeb is the y-interceptNote: To prove that a line passes through a given point, substitute x in the equation of the line by the x-coordinate of the point and solve to find y, if y equals the y-coordinate of the point, then the line passes through it
∵ The slope of the line is 2
∵ The line passes through the point (3, 1)
→ Find at first which equation has slope 2, then check if the line passes
through the point or not using the note above
A.
∵ y = 2x + 5
→ By comparing it with the form of the equation above
∴ m = 2
∴ The line has the same slope
→ Substitute x by 3 to find y
∵ y = 2(3) + 5 = 6 + 5 = 11
∵ y-coordinate of the point = 1
∴ The line does not pass through the point
B.
∵ y = 2x + 1
→ By comparing it with the form of the equation above
∴ m = 2
∴ The line has the same slope
→ Substitute x by 3 to find y
∵ y = 2(3) + 1 = 6 + 1 = 7
∵ y-coordinate of the point = 1
∴ The line does not pass through the point
C.
∵ y = 2x - 1
→ By comparing it with the form of the equation above
∴ m = 2
∴ The line has the same slope
→ Substitute x by 3 to find y
∵ y = 2(3) - 1 = 6 - 1 = 5
∵ y-coordinate of the point = 1
∴ The line does not pass through the point
D.
∵ y = 2x - 5
→ By comparing it with the form of the equation above
∴ m = 2
∴ The line has the same slope
→ Substitute x by 3 to find y
∵ y = 2(3) - 5 = 6 - 5 = 1
∵ y-coordinate of the point = 1
∴ The line passes through the point
∴ The equation of the line is y = 2x - 5
Complete the table then graph the points
whoever does it right i will give brainliest
Answer:
Step-by-step explanation:
Equation of a line has been given as,
y = -2x + 5
Input-output points lying on the the line are,
x 0 1 2 3
y 5 3 1 -1
Now we can plot these points on the graph and join them to get the line representing the given equation.
(As graph attached)
Find Mack's debt-to-income ratio if his monthly expenses are $2850 and his monthly salary is $4000
PLS SHOW WORKKKK!!!
Will give brainillest to person that shows work :)
Answer:
debt-to-income ratio= 0.7125
Step-by-step explanation:
Giving the following information:
Monthly expenses= $2,850
Monthly income= $4,000
To calculate the debt-to-income ratio, we need to use the following formula:
debt-to-income ratio= monthly debt payment / gross monthly income
debt-to-income ratio= 2,850/4,000
debt-to-income ratio= 0.7125
As a percentage:
debt-to-income= 0.7125*100
debt-to-income= 71.25%
The debt-to-income ratio is the percentage of your income dedicated to paying your debts.
Given f(x)=20x+11, find f(4)
Answer:
91
Step-by-step explanation:
Substitute 4 in place of x
f(4)=20*4+11
f(4)=80+11
f(4)=91
14) Solve: 1/2x - 7 = 1/3 (x-12) *
Answer:
x=18
Step-by-step explanation:
pls help asap!!!!!!!!!!!!!
Answer:
Number 2
Step-by-step explanation:
I can explain if needed to, since you said asap ill tell u the answer rq
plz help with this question i know you could do it please help
Answer:
The answer is 44.99
Step-by-step explanation:
divide 89.98/2= 44.99
Does - 4y - 3 = (12y - 9)
- Sy have one solution, no solution, or infinitely many solutions?
Answer:
One answer: 3/8 or 0.375
Step-by-step explanation:
Answer:
exact form y
=3/8
decimal
y=0.375
Step-by-step explanation:
Which are the intercepts of the equation y+2=4(x+1) ?
Answer:
x-intercept is ([tex]- \frac{1}{2}, 0[/tex]) and y-intercept is ([tex]0, 2[/tex])
Step-by-step explanation:
How do we find the y-intercept of a function?We solve the equation when x=0. Let's try that with [tex]y+2=4(x+1)[/tex]
First, let's simplify it so that it resembles [tex]y=mx+b[/tex] more noticeably
[tex]y = 4x + 4 - 2 \\y = 4x + 2[/tex]
Now let's plug in 0 for x to find the y-intercept:
[tex]y = 4\cdot 0 + 2\\y = 2[/tex]
How do we find the x-intercept of a function?We solve the equation when y=0. Let's try this from the simplified equation we got ([tex]y = 4x + 2[/tex])
[tex]0 = 4x + 2\\-2 = 4x\\\frac{-2}{4} = x\\x = - \frac{1}{2}[/tex]
We must remind ourselves that all y-intercepts have an x that is equal to 0 and that all x-intercepts have a y equal to 0.
That means that our x-intercept will be ([tex]- \frac{1}{2}, 0[/tex]) and our y-intercept will be ([tex]0, 2[/tex])
This corresponds to the 3rd option counting from the left.
Good luck!
The function y=2.50x+20 can be used to determine the cost in dollars for the rental of x games for game store members. What is the rate of change of the cost in dollars with respect to the number of games?
A.$2.50 per game
B.$22.20 per game
C.$20 per game
D.$17.50 per game
I'LL GIVE YOU BRAINLIEST
Answer: I think it’s d but I’m not sure
Write a simplified expression that represents the perimeter of an irregular quadrilateral with some de lengths (2 1/4t - 5) (4t + 3) (1/2t - 1) (3t + 2)
Answer:
[tex]Perimeter = \frac{39t-4}{4}[/tex]
Step-by-step explanation:
Given
[tex]Lengths: (2\frac{1}{4}t - 5), (4t + 3), (1/2t - 1), (3t + 2)[/tex]
Required
Determine the perimeter
The perimeter is calculated as the sum of the lengths of the irregular shape.
i.e.
[tex]Perimeter = (2\frac{1}{4}t - 5) + (4t + 3) + (1/2t - 1) + (3t + 2)[/tex]
Remove brackets
[tex]Perimeter = 2\frac{1}{4}t - 5 + 4t + 3 + 1/2t - 1 + 3t + 2[/tex]
Collect Like Terms
[tex]Perimeter = 2\frac{1}{4}t +4t + 1/2t + 3t - 5 + 3 - 1 + 2[/tex]
[tex]Perimeter = 2\frac{1}{4}t +4t + 1/2t + 3t -1[/tex]
Convert mixed number to improper fraction.
[tex]Perimeter = \frac{9}{4}t +4t + 1/2t + 3t -1[/tex]
Take LCM
[tex]Perimeter = \frac{9t + 16t + 2t + 12t}{4} -1[/tex]
[tex]Perimeter = \frac{39t}{4} -1[/tex]
Take LCM
[tex]Perimeter = \frac{39t-4}{4}[/tex] --- The perimeter of the shape
We want to find the perimeter of the irregular quadrilateral given that we know its lengths. By direct computation, we will get:
P(t) = (39/4)*t - 1
Remember that for any figure, the perimeter is defined as the sum of the lengths of each side.
Here we have that the lengths of the four sides of the quadrilateral are:
(2 1/4t - 5)
(4t + 3)
(1/2t - 1)
(3t + 2)
So we must sum that, we will get:
P = (2 1/4t - 5) + (4t + 3) + (1/2t - 1) + (3t + 2)
Notice that in the first part we have a mixed number, we can rewrite it as:
2 + 1/4 = 8/4 + 1/4 = 9/4
Then the sum is:
P = ((9/4)t - 5) + (4t + 3) + (1/2t - 1) + (3t + 2)
Now we simplify this sum:
P = (9/4 + 4 + 1/2 + 3)*t + (-5 + 3 - 1 + 2)
P = (39/4)*t - 1
So the perimeter, as a function of t, is:
P(t) = (39/4)*t - 1
If you want to learn more, you can read:
https://brainly.com/question/11971721
Lines A, B, and C show proportional relationships. Which line has a constant of proportionality between y and x of 2/3?
Answer:
Line C
Step-by-step explanation:
slope
Answer:line c
Step-by-step explanation:
1. Which of the following is a solution to the
equation - 2/5x = 10?
a. X = -4
b. X = -25
c. X= 4
d. X = 25
Julie cycles 7 3/4 miles in 1/3 hour. If Julie continues to cycle at the same speed, how many miles will she ride per hour?
Answer:
23.25 MPH
Step-by-step explanation:
7 3/4 x 3 = 23.25
1/3 x 3 = 3/3 = 1
So for 1 hour she will ride 23.25 MPH :D
Answer:
23 1/4 miles
Step-by-step explanation:
(7 3/4)x3 will give us the answer as (1/3)x3 is 3/3, meaning that it is the full hour.
Geometry:
What is the volume of the cone?
A. 2876.7 yd
B. 4625.36 yd
C. 4258.44 yd
D. 2787 64 yd
Answer:
D. 2787.64 yd^3
Step-by-step explanation:
This is the formula for the volume of a cone:
[tex]V=\frac{1}{3} \pi r^2h[/tex]
The height of the cone is 22 yd. The radius of the base of the cone is not given but we can use the diameter to calculate it since the radius is equal to half of the diameter.
[tex]r=\frac{1}{2}d\\r=\frac{1}{2}(22)\\r=11yd[/tex]
Therefore, the radius of the base of the cone is 11 yd.
Now, we plug our values into the formula and solve.
[tex]V=\frac{1}{3} \pi r^2h\\V=\frac{1}{3} \pi (11^2)(22)\\V=\frac{1}{3} \pi (121)(22)\\V=\frac{1}{3} \pi (2662)\\V=\frac{1}{3} \pi (2662)\\V=2787.64 yd^3[/tex]
Therefore, the volume of the cone is equal to 2787.64 yd^3.
I hope this helps!
13857552359.3 rounded by it nearest whole number. I will give the brainliest. Please help!
Answer:
13857552359
Step-by-step explanation:
13857552359.3
3 is less than 5, so round down to 13857552359
Answer:
what is given: 13857552359.3
Ones: 13857552359
Tens: 13857552360
Hundreds: 13857552400
Thousands: 13857552000
Millions: 13858000000
Hint: Each of the numbers are different
P.S I put all of them because you didnt say which whole number you wanted
Hope this helped!
24. One solution of the equation
2x2 - 7x+k=0 is x =-1. Find the value of k.
2
Answer:
this is the correct solution for your question
Answer:
The value of k is -4.
Step-by-step explanation:
In order to find the value of k, you have to substitite x = -1/2 into the equation :
[tex]2 {x}^{2} - 7x + k = 0[/tex]
[tex]let \: x = - \frac{1}{2} [/tex]
[tex]2 {( - \frac{1}{2} )}^{2} - 7( - \frac{1}{2} ) + k = 0[/tex]
[tex]2( \frac{1}{4} ) + \frac{7}{2} + k = 0[/tex]
[tex] \frac{1}{2} + \frac{7}{2} + k = 0[/tex]
[tex]4 + k = 0[/tex]
[tex]k = - 4[/tex]
Complete the equivalent ratio = 9/4 = 81/?
Answer:
81/36
Step-by-step explanation:
81/9 is 9
9 times 4 is 36
Answer:
Hi there the answer is 81/36. Hope this helps! c:
Step-by-step explanation:
First, figure out what ratio was used to make 9, 81.
You can recall that 9 x 9 = 81.
Therefore you must multiply the bottom of the fraction by 9 as well in order to create the correct ratio.
Thus, 4 x 9 = 36.
will mark brainlest and giving 30 points
Which phrase best describes the relationship indicated by the scatter plot?
A.
constant correlation
B.
negative correlation
C.
positive correlation
D.
no correlation
Answer:
D
Step-by-step explanation:
Answer:
D, No correlation
Step-by-step explanation:
Help please on circle theorems
Answer:
n = 28
Step-by-step explanation:
The angle at the centre is twice the angle on the circle subtended on the same arc, then
35 + m = 0.5 × 98 = 49 ( subtract 35 from both sides )
m = 14
∠ n is at the centre subtended on the same arc as ∠ m , thus
n = 2m = 2 × 14 = 28
What is the solution set to log(x + 7) > log3x?
Answer: (-∞, 3.5)
Step-by-step explanation:
Here we can use the relation:
Exp( Log(X)) = X
Now, we start with the equation:
log(x + 7) > log(3x)
Now we can apply the exponential function to both sides of the inequality to get:
Exp(log(x + 7)) > Exp(log(3x))
x + 7 > 3x
7 > 3x - x
7 > 2x
7/2 > x
3.5 > x
Then the solutions will be all the values of x smaller than 3.5, this set can be written as:
(-∞, 3.5)
Answer:
(0,3)
Step-by-step explanation:
used an online calculator
Plzzz I need helpppp
Algebra
what is the equation for the line in slope-intercept form?
enter your answer in the box
Answer:
It might help u , plz Brain-list it
Step-by-step explanation:
The option is not given but still its clear from the graph
That its slope intercept form will be ,
X=0 (the point where it intersect x axis) and Y=0 (the point where it intersect y axis)
Answer:
y = 8x
Step-by-step explanation:
Hope this helps
(From k12)
WILL BRAINLIST
Given the points (-4, 6) and (1, -2) find the slope.
Answer:
-8/5
Step-by-step explanation:
y values minus each other over x values minus each other
Answer:
-8/5 or -1.6
Step-by-step explanation:
the formula for slop is y2-y1/x2-x1
y2 is -2
y1 is 6
x2 is 1
x1 is -4
(-2-6)/(1+4)
(-8)/(5)
the slope is -8/5 or -1.6
(just in case you need to write out the work)
Given an inequality, what strategies can we use to determine where the boundary line is? Explain your strategies in detail.
4x+3y≥12
Answer:
The strategy is to find the x and y intercept of the given equation
Step-by-step explanation:
4x+3y≥12
In order to determine where the boundary line, we need to first get the x and y-intercept of the inequality expression given;
x-intercept occurs at where y = 0
when y = 0
4x + 3(0)≥12
4x ≥12
x ≥12/4
x≥ 3
Also y intercept occurs at where x = 0
4x+3y≥12
4(0)+ 3y ≥12
3y≥12
y≥12/3
y≥4
Hence the intercept of the line is at (3, 4). A thick line will pass through this point and the upper part of the graph will be shaded. The strategy is to find the x and y intercept of the given equation
Solve for a: (a+4)/3 - a/7 = (a+7)/5
Answer:
a= -7
Step-by-step explanation:
I hope this helps! :)
help me plzzzz :)) tyy if you do
If you dissolve 50g of sugar in 30g of water, what is the sugar concentration?
Answer: 62.5% water
100 * 50 / (50 + 30) = 100 times, then you do 50/80 and you get 62.5.
Answer:
62.5% or 62.5
Step-by-step explanation:
;)
Willy rents a bike for 7 days. The charge is $15 plus the $0.08 per mile. He wants to spend exactly $35. How many miles can he ride the bike? *
Answer:
Willy can ride the bike for 250 miles.
Step-by-step explanation:
$35 - $15 = $20
$0.08 × 12.5 = $1
$1 per 12.5 miles
$20 × 12.5 = 250
Tracee buys a shirt for $15 and a pair of Jeans for $32.50. If the sales tax is 8% what is the total price Tracee pays for the items?
Answer:
38.00
Step-by-step explanation: