Answers
Answer:
[tex]\displaystyle m=7[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (0, 0)
Point (1, 7)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]\displaystyle m=\frac{7-0}{1-0}[/tex]Subtract: [tex]\displaystyle m=\frac{7}{1}[/tex]Divide: [tex]\displaystyle m=7[/tex]Related Questions
Mrs. Brim made a chart to see how long it took her students to finish a test. How many students took more than thirty minutes to finish the test?
Answers
Answer:
As, this question is incomplete and without data we can not answer this question. But we can make it complete by adding our own values. Let's do it and calculate.
Average Time = 23.4 minutes is the time that Mrs Brim wanted to see.
Step-by-step explanation:
As, this question is incomplete and without data we can not answer this question. But we can make it complete by adding our own values. Let's do it and calculate.
Let's suppose, there are 10 students in the class of Mrs. Brim and she took 5 tests on subsequent days and made chart to know the average time her students took to solve the test.
Total time of test = 30 minutes
Average time taken by the students to solve the test on Day 1 = 25 minutes.
Average time taken by the students to solve the test on Day 2 = 27 minutes.
Average time taken by the students to solve the test on Day 3 = 22 minutes.
Average time taken by the students to solve the test on Day 4 = 23 minutes.
Average time taken by the students to solve the test on Day 5 = 20 minutes.
Average Time in all Tests = Sum of all times / total number of days
Average Time = (25 + 27 + 22 + 23 + 20) / 5 days
Average Time = 117/5
Average Time = 23.4 minutes is the time that Mrs Brim wanted to see.
what is the answer to 3c-7c+a+b
Answers
which is the better value 36 pictures for $8 or 24 pictures for $5
Answers
Answer:
24 pictures for $5
Step-by-step explanation:
To find out the better value, we have to find the price of a singular picture. To do this, we will divide each number by the amount of pictures.
For the first deal, 36 pictures cost $8, so 1 picture costs about $0.22.
For the second deal, 24 pictures cost $5, so 1 picture costs about $0.21.
Since the second deal costs less, it is a better deal.
Answer:
The best deal is 24 pictures for $5.
Step-by-step explanation:
In order to find out which price is better, we need to find the amount of pictures per dollar. This is also known as the unit rate.
36 ÷ 8 = 4.5 or 5 when rounded to the nearest whole number.
24 ÷ 5 = 4.8 or 5 when rounded to the nearest whole number.
However, since 4.8 is in fact higher than 4.5, the best deal is 24 pictures for $5.
Hope this helps! :D
Which graph represents the solution set of and ?
graph I
graph II
graph III
graph IV
A.
graph I
B.
graph II
C.
graph III
D.
graph IV
Answers
Answer:
GRAPH IIIStep-by-step explanation:
Look at the picture.
We have
y = x² - 4 → move the graph of x² 4 units down (the vertex is (0, -4))
x + y + 2 = 0 subtracy x and 2 from both sides
y = -x - 2 → move the graph of -x 2 units down (the y-intercept os -2)
Only graph III and IV meets these conditions.
The solution is the points of intersection of the graphs.
Therefore your answer is GRAPH III
Answer:
[tex]\fbox {C. graph lll}[/tex]
Step-by-step explanation:
The solution of the system of equations can be found at their intersections.
The graph which is correct is graph III as it has the correct representations of the equations and correctly indicates the points of intersection.
find the slope of the line graphed below
Answers
Answer:
To find the slope of a line, we need to know the slope formula. The slope formula is:
m = , with m being the slope and (x₁, y₁) being the coordinates of one point and (x, y) being the coordinates of the other. Now we can substitute the values of the points in our problem ( (-1,-1) and (1, -4) ) into the slope formula. Substituting, we get:
=
==
=-1.5
That means the slope of our line is -1.5
Step-by-step explanation:
I don't understand this question. I was hoping someone could help.
Answers
Answer:
A
Step-by-step explanation:
The constant rate of change in this question simply means the slope
To get the slope, we simply get two points and apply the slope equation;
The points are;
(3,60) and (6,30)
The slope equation is;
m = (y2-y1)/(x2-x1) = (30-60)/(6-3) = -30/3 = -10 ft/s
So our answer is the first option as it represents a decent of -10 ft/s
What is the value of x In this equation?
75 + 10x = 225
150
15
25
10
Answers
Answer:
15
225-75=150
150÷10=15
75-75 is 0 , 225-7 is 150
10x/10 = 150/10
X=15
Find the missing angle measure Angle STU?
Answers
Explain how to estimate the quotient using compatible numbers. 27 and two-thirds divided by 3 and nine-tenths
Answers
Answer:
the estimation of the quotient is 7
Step-by-step explanation:
The computation of estimating the quotient is shown below:
It is given that the number is 27
After that the two-third would be divided by 3
And, then the nine-tenth
Based on the above information, the estimation of the quotient is
= 27 + 2 ÷ 3 ÷ 3 + 9 ÷ 10
= 27 + 0.67 ÷ 3 + 0.9
= 27.67 ÷ 3.9
= 28 ÷ 4
= 7
hence, the estimation of the quotient is 7
Find the length of the missing side. Round to the nearest tenth (one decimal place).
Answers
Answer: pretty sure it is 56.5
Step-by-step explanation:
These two triangles are similar. If the base of △ A B C is 3 cm and the base of △ D E F is 7 cm, and the area of △ A B C is 7 cm², calculate the area of △ D E F. Round your answer to two decimal places.
Answers
Answer:
38.11 cm^2
Step-by-step explanation:
DEF is larger than ABC
therefore find the height of ABC
7 = 1/2 * 3 * h
h = 7 * 2/3
h = 14/3
So, lets find height for DEF, 7/3 = H/ 14/3
H = 98/9
A = 1/2 * 7 * 98/9
A = 38.11 cm^2
Review the graph. On a coordinate plane, a vector has origin (6, 2) and terminal point (0, 4). What is the component form and magnitude of the vector shown? LeftAngleBracket negative 2, 7 RightAngleBracket and StartRoot 53 EndRoot LeftAngleBracket negative 2, 7 RightAngleBracket and 53 LeftAngleBracket negative 7, 2 RightAngleBracket and StartRoot 53 EndRoot LeftAngleBracket negative 7, 2 RightAngleBracket and 53
Answers
Answer:
I think C
Step-by-step explanation:
The component form and magnitude of the vector is < -6, -2>, √ 40, the correct option is A.
What is a Vector?A vector is a quantity that needs both magnitude and direction for its representation.
A vector has origin (6, 2) and terminal point (0, 4).
The component of vectors is determined by the formula
<x,y> = < (x₂- x₁ ) , (y₂-y₁)>
<x,y> = < (0-6), (4-2)>
<x,y> = < -6, -2>
The magnitude of the vector is determined by
[tex]\rm |v| = \sqrt{x^2 +y^2[/tex]
|v| = √ 40
The correct options are
LeftAngleBracket negative 6, 2 RightAngleBracket and StartRoot 40 EndRoot LeftAngleBracket negative 6, 7 RightAngleBracket and 40 LeftAngleBracket negative 2,6 RightAngleBracket and StartRoot 47 EndRoot LeftAngleBracket negative 2, 6 RightAngleBracket and StartRoot 40
To know more about Vectors
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Equal to the opposite of -45
Answers
Answer:
45 or 1/45
Step-by-step explanation:
not sure
Please help me asap
Select the correct answer from each drop-down menu.
A system of linear equations is given by the tables. x y -1 1 0 3 1 5 2 7 x y -2 -7 0 -1 2 5 4 11
Answers
Answer:
1) The first equation of the system is y = 2·x + 3
2) The second equation of the system is y = 3·x - 1
3) The solution of the system is (4, 11)
Step-by-step explanation:
1) From the coordinates of the first table, we have;
The points of the y-coordinate have a common difference of two
The rate of change of the function using the first and the last point is given as follows;
Rate of change = Slope, m = (7 - 1)/(2 - (-1)) = 2
The, equation of the line in point and slope form is, y - 7 = 2 × (x - 2)
∴ The equation of the line in slope and intercept form is y = 2·x + 3
Therefore, the first equation of the system is y = 2·x + 3
2) Similarly from the coordinates of the second table, we have;
The points of the y-coordinate have a common difference of six
The rate of change of the function using the first and the last point is given as follows;
Rate of change = Slope, m = (11 - (-7))/(4 - (-2)) = 3
The, equation of the line in point and slope form is, y - 11 = 3 × (x - 4)
∴ The equation of the line in slope and intercept form is y = 3·x - 1
Therefore, the second equation of the system is y = 3·x - 1
3) Equating both equations in the system of equations to find a common solution gives;
2·x + 3 = 3·x - 1
∴ x = 4
From y = 3·x - 1 or y = 2·x + 3, we have the value of y at the solution point as y = 3 × 4 - 1 = 11 or 2 × 4 + 3 = 11
∴ y = 11 at point of the common solution of the system of equations
Therefore, the coordinates of the common point which is the solution of the system is (4, 11).
Answer:
Select the correct answer from each drop-down menu.
A system of linear equations is given by the tables.
x y
-1 1
0 3
1 5
2 7
x y
-2 -7
0 -1
2 5
4 11
The first equation of this system is y =
2
x + 3.
The second equation of this system is y = 3x −
1
.
The solution of the system is (
4
,
11
).
Step-by-step explanation:
Giving brainleest for brainly.
Answers
The cost of 5 cans of dog food is 4.35. At this price how much do 11 cans of dog food cost? Explain!
Answers
Answer:
Ok so it would be 9.57
Step-by-step explanation:
4.35÷5 = 0.87
so 1 can is 0.87
$0.87*11=$ 9.57
each can is 87 cents
grams of fish
number of calories
1000
2001
Enter the missing values in the boxes below.
b=0
Answers
Answer:
♂️ but if you know please answer
Answer:
12344567891011121314151617181920
Step-by-step explanation:
12344567891011121314151617181920
Square ABCD was translated using the rule (x. y) «-4,y + 15) to form A'B'CD. What are the coordinates of point
D in the pre-image if the coordinates of point D' in the image are (9, -8)?
TE
O (13, -23)
(5, 7)
O (18, 1)
O (6,4)
Answers
Answer:
[tex](13,-23)[/tex]
Step-by-step explanation:
Given
Translation: [tex](x,y) -> (x-4,y+15)[/tex]
Required
Determine the pre-image of (9,-8)
In (9,8)
[tex]x = 9[/tex] and [tex]y = -8[/tex]
So:
[tex](x,y) -> (x-4,y+15)[/tex]
Becomes
[tex](9,8) ->(x-4,y+15)[/tex]
By comparison:
[tex]x - 4 = 9[/tex]
[tex]y + 15 = 8[/tex]
Solving for (x):
[tex]x - 4 = 9[/tex]
[tex]x = 9 + 4[/tex]
[tex]x = 13[/tex]
Solving for (y):
[tex]y + 15 = -8[/tex]
[tex]y = -8 - 15[/tex]
[tex]y = -23[/tex]
Hence, the pre -image has a coordinate of [tex](13,-23)[/tex]
Write P(x) = x^3 + x^2 − 17x + 15 as a product of two factors, using x − 3 as one factor.
A. (x − 3)(x^2 + x − 17)
B.(x − 3)(x^2 + 4x − 17)
C.(x − 3)(x^2 – 4x − 5)
D.(x − 3)(x^2 + 4x − 5)
Answers
Answer:
D. (x-3)(x^2 + 4x - 5)
Step-by-step explanation:
P(x) = x³ + x² - 17x + 15 can be written as (x - 3) (x² + 4x - 5) as a product of two factors.
What is Polynomials?Polynomials are expressions in algebra which consist of variables, constants and exponents combined using the basic operations in mathematics like addition, subtraction, multiplication and division.
Polynomials can be classified as monomials, binomials and trinomials depending on the degree of the variables as 1, 2 and 3 respectively.
The given polynomial is P(x) = x³ + x² - 17x + 15.
We already have x - 3 is the factor of this polynomial.
To get the other factor which is a binomial, we have to divide the given polynomial with x - 3.
On dividing, we get x² + 4x - 5 as the quotient and remainder equals zero.
So x² + 4x - 5 is the other factor of the given polynomial.
Hence, the polynomial P(x) = x³ + x² - 17x + 15 can be written as (x - 3) (x² + 4x - 5) as a product of two factors.
To learn more about Polynomials, click on the link given below:
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Marisol is making a rectangular wooden frame. She wants the length of the frame to be no more than 12 inches. She has less than 30 inches of wood to use. Which system of inequalities represents the possible length, l, and the possible width, w, that her frame could have?
l ≤ 12
2l + 2w 12
2l + 2w 12
l + w < 30
Answers
Answer:
a i the answer
Step-by-step explanation:
l ≤ 12
2l + 2w < 30
Answer: a
Step-by-step explanation:
Question 4
Write an algebraic expression for the following.
Joe spent three dollars less than twice as much as Fernando did.
Use x for the variable.
Question 5
Ayliah is 7 years more than 1/2 of Deb's age
use x for the variable
Answers
2x-3
Because we don’t know how much Fernando has that would be where we fill in the variable giving you 2x then 3 dollars less will give you the -3 therefore 2x-3
Question 5:
1/2x+7
Because we don’t know Deb’s age that would be the variable and we are looking for half of Deb’s age giving you 1/2x then the 7 years more giving you the +7 hence 1/2x+7
If 5p - 2r = 19 and 2p + r = 4, find (p+r)
Answers
Answer:
5p-2r =19 in this one 5*5-2*3 so in this one p is =5 and r =3 and in the next one 2p+r=4 the answer is for p =1 and r =2 this means 2*1=2 and 2+2=4 and the first one is 5*5=25 and 2*3= 6 and 25-6=19 so that's it I guess
2
A small business collected data each month to find out if money spent on advertising
affected the total sales for the company. The table shows the data collected over
several months.
Total Sales
Money Spent on
Advertising ($)
200
250
1,500
1,505
1,600
1,650
260
300
350
1,700
450
1,825
525
1,875
What is the correlation coefficient between money spent and total sales?
Answers
Answer:
Step-by-step explanation:
3
Which is equivalent to 6x-8y
Answers
Answer:
24 i guess. im not sure
Using the Arc length formula s = r θ, find the missing variable.
Find s when r = 18.4 and θ 3π/4
13.8π
15.2π
24.5π
Answers
Step-by-step explanation:
13.8pie is correct answer of your question
Mel works as a delivery person for Amazon. The graph shows a linear model for his delivery times on
different days.
(a) What is the equation of the line, first written in point-slope form and then written in slope-intercept
form? Show how you determined the equation.
(b) Based on the linear model, predict how long it initially took Phillip to deliver his packages.
Approximately how much did his delivery time decrease per day?
Answers
Answer:
Point slope form: -9 = m(3)
Slope intercept form: y = -3x + 30
At x = 0, his delivery time was 30 minutes. It decreased by 3 minutes per day.
Step-by-step explanation:
We have 2 points to calculate the line.
(3, 21) x1 y1
(6, 12) x2 y2
First, we need to calculate the slope.
m =
m =
m = -3
Point slope form is:
y - y1 = m(x - x1)
So for our case:
-9 = m(3)
And slope intercept form is:
y = mx + b
We need to solve for the y intercept (b)
y = -3x + b --- enter the slope
21 = -3(3) + b --- enter in any point on the line for x and y
21 = -9 + b
b = 30 --- solve for b
Now our slope intercept form of the line is:
y = -3x + 30
At x = 0, his delivery time was 30 minutes. It decreased by 3 minutes per day.
This year, a small business had a total revenue of $89,700. If this is 38% more than their total revenue the previous year, what was their total revenue the previous year?
Answers
Answer:
The business' total revenue last year was $65,000.
Step-by-step explanation:
So, if you need to find the previous year's total revenue, you would set up an equation like this:
x + 0.38x = 89,700
I think it would work out something like this:
x + 0.38x = 89,700
1.38x = 89,700
x = 65,000
To check, we would substitute 65,000 into the equation x + 0.38x = 89,700.
x + 0.38x = 89,700
(65,000) + 0.38(65,000) = 89,700
65,000 + 24,700 = 89,700
89,700 = 89,700
convert to standard form y=-4x-8
Answers
Answer:
[tex]4x + y = - 8[/tex]
Step-by-step explanation:
write in standard form :
[tex]ax + by = c[/tex]
A submarine is 105 feet below the surface of the water, and it begins to ascend at a rate of 3 feet per minute. After how many minutes will the submarine be 81 feet below the surface?
Answers
Answer:
8 minutes
Step-by-step explanation:
Step one:
given
A submarine is 105 feet below the surface of the water
depth of submarine= 105 feet
let the time of ascending be x
Required
The time taken to ascend up to 81 ft
Step two:
the expression for the situation is
81=105-3x
solve for x
3x=105-81
3x=24
divide both sides by 3
x= 24/3
x=8 minutes
how to use standard form
Answers
Answer: Standard form is another way to write slope-intercept form (as opposed to y=mx+b). It is written as Ax+By=C. You can also change slope-intercept form to standard form like this: Y=-3/2x+3. Next, you isolate the y-intercept(in this case it is 3) like this: Add 3/2x to each side of the equation to get this: 3/2x+y=3.
Step-by-step explanation: hope this helps