Answer:
Slope, sometimes referred to as gradient in mathematics, is a number that measures the steepness and direction of a line, or a section of a line connecting two points, and is usually denoted by m. Generally, a line's steepness is measured by the absolute value of its slope, m. The larger the value is, the steeper the line. Given m, it is possible to determine the direction of the line that m describes based on its sign and value:
A line is increasing, and goes upwards from left to right when m > 0
A line is decreasing, and goes downwards from left to right when m < 0
A line has a constant slope, and is horizontal when m = 0
A vertical line has an undefined slope, since it would result in a fraction with 0 as the denominator. Refer to the equation provided below.
Slope is essentially change in height over change in horizontal distance, and is often referred to as "rise over run." It has applications in gradients in geography as well as civil engineering, such as the building of roads. In the case of a road the "rise" is the change in altitude, while the "run" is the difference in distance between two fixed points, as long as the distance for the measurement is not large enough that the earth's curvature should be considered as a factor. The slope is represented mathematically as:
m =
y2 - y1
x2 - x1
how many terms are in the given expression 7x+5w+23t+3
Answer:
4
Step-by-step explanation:
7x 5w 23t 3
PLS HELP a parabola has the equation y = 4x^2 + bx -2 and the equation for the axis of symmetry is x = -1.
Answer:
Step-by-step explanation:
Remark
Unless you know calculus, the only way to solve this is by completing the square.
Solution
y = 4x^2 + bx - 2
y = 4(x^2 + b/4 ) - 2
y = 4(x^2 + b/4 + (1/2b/4)^2 ) - 2 - 4*(b/8)^2
y = 4(x^2 + b/4 + (b/8)^2 ) - 2 - b^2/16
y = 4(x + b/8)^2 - 2 - b^2/16
Now what you want to happen is to give b/8 a value of 1 so that when x is put in -1 you get 0 for what is inside the brackets.
b/8 = 1
b = 8
y = 4(x + 1)^2 - 2 - (8)^2 / 16
y = 4(x + 2)^2 - 2 - 4
y = 4(x + 1)^2 - 6
The vertex is at (-1, - 6)
The axis of symmetry is x = - 1
Note
This could have been done a lot shorter just by realizing that the number inside the brackets had to be + 1 as in (x + 1). But then you would not have been able to know the minimum value for y which is - 6
Will mark BRAINLIEST! Show work
Answer:
15%
Step-by-step explanation:
1. Subtract final value from starting value
65 - 55.25 = 9.75
2. Divide 9.75 by original number
9.75/65 = 0.15
3. Multiply quotient by 100 to get percentage
0.15 x 100 = 15%
Anyone plssss helppppp plssss
Answer:
E because he is 9/16 standard deviations away from the mean, which is an improvement from 1/10 standard deviations
Hope this helped and brainliest please
A middle school has a student population of 800 students. A random group of 60 students at the school were asked if they would vote for a tiger as a school mascot. All but 3 of these students said they would vote for a tiger as a mascot. Based on this survey, which number is a reasonable prediction for the number of students out of the total student population who would most likely vote for a tiger as a mascot?
Answer:
400
Step-by-step explanation:
i think you should revise the q. it looks incorrect...
all but 3 students said they would NOT vote for a tiger...** if that"s the thing then this answer is correct did it by ratio file is attatched:)
what is the LCM of 5 and 7
Answer:
35
Step-by-step explanation:
Answer:
the answer is 35.
Step-by-step explanation:
18) PB = 8. Find PA.
In an endurance race, Alyson rode her bicycle 7 miles less than Jeff. Together they rode 39 miles. How far did Alyson ride?
Answer:
Distance cover by Alyson = 16 miles
Step-by-step explanation:
Given:
Distance cover together = 39 miles
Assume;
Distance cover by Jeff = a
Distance cover by Alyson = a - 7
Find:
Distance cover by Alyson
Computation:
a + (a - 7) = 39
2a - 7 = 39
2a = 46
a = 23
Distance cover by Alyson = a - 7
Distance cover by Alyson = 23 - 7
Distance cover by Alyson = 16 miles
What is the value of - (-5)?
BTW - Can you tell me what that means? I'm not sure what the number is or what it means, yes I do know it's a negative but still
Answer:
[tex] + 5 \: i \: hope \: so \: . \: absolute \: value \: is \: used[/tex]
(0,4) (5,1) (3,8) (6,3) (5,9)function or non function?
Answer:
Not a function
Step-by-step explanation:
x repeats, you have 5 mapped to 1 and 5 mapped to 9 so you have to have a one-to-one relationship with your points if it is a function
HELP HELP HELP PLEASE
Answer:
Put your dot on 7/4 and then then -1 means you will go left 1 time and down 1 time 1 left 1 down it should look like a staircase
Step-by-step explanation:
what is the surface area ?
816 cm squared
456 cm squared
106 cm squared
272 cm squared
why is no one helping me...i want a good grade but I need someone who is good with slope and is smarter than a 8th grader BUT NO no one wants to help me
Answer: what is the question
Step-by-step explanation:
For a school fundraiser, Jessica will make T-shirts. She will order T-shirts and print graphics on them. Jessica must spend $255 on a printing machine and
$6.80 per shirt for the blank shirts, Ink, and other supplies.
Part
What is the maximum number of T-shirts Jessica can make with a budget of $1,000?
Explain your answer or show your work:
A piece of copper tubing is in the shape of a hexagonal prism. The area of the base of the prism is 3 square centimeters. The volume of the prism is 51 cubic centimeters. What is the height of the tubing?
Answer: 17 cm
Step-by-step explanation:
For a regular figure where the area of the base is B, and the height is H, the volume is calculated as:
V = B*H
Here we know that the base of the prism is B = 3 cm^2, and the volume of the prism is 51 cm^3
Then:
B = 3cm^2
V = 51cm^3
If we replace those in the equation above, we get:
51 cm^3 = (3cm^2)*H
Solving this for H gives:
(51 cm^3)/(3 cm^2) = H = 17 cm
The height of the tubing is 17 cm
please help me with whole answer i give brainliest.
Answer:
Step-by-step explanation:
15 < x + 8
x> 7
(Opened circle)
x + 8 <= 19
x <= 11
(Closed circle)
What is the area of the polygon below.
Answer:
336 ft²
Step-by-step explanation:
The figure is composed of a rectangle and a right triangle
A of rectangle = length × breadth = 24 × 12 = 288 ft²
A of Δ = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )
Here b = 32 - 24 = 8 ft and h = 12 , then
A of Δ = [tex]\frac{1}{2}[/tex] × 8 × 12 = 4 × 12 = 48 ft²
composite area = 288 + 48 = 336 ft²
Can someone help me?!!!
Only C and D plz!!!!! Lots of points!! If you can’t read let me know!!!!
Answer:
d I do believe
Step-by-step explanation:
can you help me with my question In the following passage from "The Story of an Hour," what type of conflict does Mrs. Mallard describe? Sec. 10: There would be no powerful will bending hers in that blind persistence with which men and women believe they have a right to impose a private will upon a fellow-creature. A. man vs. nature B. man vs. soll C. man vs. society
solve the inequality -d ≥ 0.5
Answer:
d ≤ -0.5
Step-by-step explanation:
Multiply each term by -1
Find the measure of the largest angle in the diagram below.
Answer:
The largest angle is 102
Step-by-step explanation:
2x + 3x + 10 = 180
5x + 10 = 180
5x = 170
x = 34
2(34) = 68
3(34) + 10 = 102
Answer:
Step-by-step explanation:
102
On day D of school, how many box tops will Carter have brought to school?
What are the numbers???
Answer:
is there a chart for this?
9+7x=4x-9 Solve for X.. Help?
Answer:
-6 srr if you get it wrong
Step-by-step explanation:
9 + 7x = 4x - 9
7x - 4x = - 9 + (- 9)
3x = -18
x = -6
Brainiest to who answers
Find the x- and y-intercepts of the graph of 3x + 2y = 20. State your answers as
whole numbers or as improper fractions in simplest form.
The x-intercept is given by the coordinates as (x, 0)
i,e y = 0
The y-intercept is given by the coordinates as (0, y)
i.e x = 0
The x-intercept of the graph of 3x + 2y = 20 is at x = 20/3
The y-intercept of the graph of 3x + 2y = 20 is at y = 10
What are coordinates in a graph?
The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
3x + 2y = 20
The x-intercept is given by the coordinates as (x, 0)
i,e y = 0
The y-intercept is given by the coordinates as (0, y)
i.e x = 0
Now,
3x + 2y = 20
Putting x = 0 in (1) we get the y-intercept.
3x + 2y = 20
3x0 + 2y = 20
0 + 2y = 20
2y = 20
Divide both sides by 2.
y = 20/2
y = 10
Putting y = 0 in (1) we get the x-intercept.
3x + 2y = 20
3x + 2 x 0 = 20
3x + 0 = 20
3x = 20
Divide both sides by 3.
x = 20/3
Thus,
The x-intercept of the graph of 3x + 2y = 20 is at x = 20/3
The y-intercept of the graph of 3x + 2y = 20 is at y = 10
Learn more about coordinates here:
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how do u solve rational exponent equations
60 degrees 30 degrees 72 degrees 46 83 97 215 457
Find the value of x. Round nearest tenth.
Answer:
x = 53.7 degrees
Step-by-step explanation:
[tex]tan = \frac{opposite}{adjacent}[/tex]
[tex]tan x = \frac{15}{11}[/tex]
tan x = 1.36
tan-1 of 1.36 = 53.7
Leon has $50 in a savings account that earns 10% interest, compounded annually. To the nearest cent, how much interest will he earn in 2 years?
Answer:
$10.50
Step-by-step explanation:
Interest = future value - amount saved
The formula for calculating future value:
FV = P (1 + r)^n
FV = Future value
P = Present value
R = interest rate
N = number of years
$50 x (1.1)^2 = $60.50
Interest = $60.50 - $50 = $10.50
Rectangle ABCD is the image of ABCD after the reflection of which of the following lines
Answer My best guess is D
Step-by-step explanation:
Help please
Brainiest answer to first to answer
Answer:
43
Step-by-step explanation:
14+6+6+8+9
Answer:
108
Step-by-step explanation:
8*9=72
6*6=36
72+36= 108ft
What is an equivalent ratio to 5:10?
Answer:
1:2
Step-by-step explanation:
Its just like fractions
You can simplify it.