Answer:
D
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = 3x - 4 ← is in slope- intercept form
with slope m = 3
Parallel lines have equal slopes , so
y = 3x + c ← is the partial equation
To find c substitute (2, 1) into the partial equation
1 = 6 + c ⇒ c = 1 - 6 = - 5
y = 3x - 5 ← equation of parallel line → D
Solve using suitable property and name the property applied. 3/5 x 35/24 + 15/6 x 3/5
Peter wants to measure the height of a tree. He walks exactly 100 feet from the base of the tree and looks up. The angle of elevation to the top of the tree is 23 degrees. About how toll is the tree
feet tall
The tree is about _____ feet tall
Step-by-step explanation:
everything can be found in the picture
Connor gathered data about the height of customers entering a store and the time that it took them to gather their items and enter the checkout line.
Connor's data:
Based on the data provided by Connor, the correlation coefficient of the relationship is -0.84.
What is the correlation coefficient?
Correlation is used to determine the type of relationship that exists between two variables.
A negative correlation is when the two variables move in opposite directions. If one variable increases, the other variable decreases. A negative correlation has a negative sign in front of it.
The correlation coeffcieenct can be determined using a financial calculator.
To learn more about negative correlation, please check: https://brainly.com/question/27246345
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Christian has six grades from test and IXL. They are all weighted equally. If Christian's grades are 100,96,96,88,70, and 100, what is thhe current average grade? (Round to the nearest whole number)
Answer:
100+96+96+88+70+100=550
550 divided by 6 is 91 1/3
92 is his current grade
Does this graph represent a function? Why or why not?
Answer:
B yes
Step-by-step explanation:
As long as a verticle line intercepts the graph at no more than one point it is a function
Answer:
B. Yes, because it passes the vertical line test
Step-by-step explanation:
no x values are repeated
Hello there, could you please help me? Thank you
Answer:
24
Step-by-step explanation:
Segment AC is 1/2 of segment AB so 12+12=24
Hope this helps
A second bag of 40 marbles contains 11 red marbles, 9 blue marbles and 20 green marbles.
All the marbles from the two bags are mixed together.
Write down the ratio of marbles red: blue :green.
Give your answer in its simplest form.
Answer:
Where is the first bag? We cant solve the question without knowing the marbles in the first bag
Answer:
There are
red: blue: green
11: 9: 20
The axis of symmetry for a function in the form f(x) = x2 + 4x − 5 is x = −2. What are the coordinates of the vertex of the graph?
(−9, −2)
(−17, −2)
(−2, −17)
(−2, −9)
Answer:
D) [tex](-2,-9)[/tex]
Step-by-step explanation:
Vertex Form of a Vertical Parabola:
[tex]y=a(x-h)^2+k[/tex]
Vertex -> [tex](h,k)[/tex]
Axis of Symmetry -> [tex]x=h[/tex]
Vertical Scale Factor -> [tex]a[/tex]
To turn [tex]f(x)=x^2+4x-5[/tex] into vertex form, we need to complete the square on the right sideTherefore, if [tex]f(x)=0[/tex], then [tex]0+9=x^2+4x-5+9[/tex] completes the square on the right side This becomes [tex]9=(x+2)^2[/tex]This means that our function in vertex form is [tex]f(x)=(x+2)^2-9[/tex]Therefore, the vertex of the graph is [tex](h,k)=(-2,-9)[/tex].
The coordinates of the vertex of the graph is (-2, -9).
What are Quadratic Functions?Quadratic functions are polynomial functions consisting of variables and exponents and the degree of the variable is 2.
The general form of a quadratic function is f(x) = ax² + b x + c.
Given is a quadratic function,
x² + 4x - 5
Given that axis of symmetry of the function is x = -2.
So the x coordinate of the vertex = -2.
y coordinates = f(-2) = 4 - 8 - 5 = -9
Hence the vertex is (-2, -9).
Learn more about Vertex form here :
https://brainly.com/question/13921516
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PLEASE HELP! Joe was holding a kite with his hand 5' off the ground. The kite string is 125' long and has an angle of elevation of 56 degrees. How high off the ground is the kite?
Answer: 108.629 inches off the ground. (Round to any decimal place!)
Hi there! This is very similar to a question that I had yesterday, so I will do my best to try to answer it! I’m only in middle school, so this may not be correct :)
Step-by-step explanation:
First set up a diagram. The length of the string is the hypotenuse, and the angle of elevation is as pictured below. Use SOH CAH TOA to find the correct ratio, and then solve for “x”. Once you solve for “x” (height) add the 5 inches to the total, and your answer will be there! :)
A city has 20 radio stations including 5 college stations. What is the probablility that a randomly chosen radio station in this city is a college radio station
Answer:
1/4
Step-by-step explanation:
Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.
For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.
the probability that a randomly chosen radio station in this city is a college radio station = number of college stations / total number of city radio stations
= 5/20
To transform to the simplest form. divide both the numerator and the denominator by 5
= 1/4
Solve for y.
-24 = -8y
Simply your answer as much as possible.
Answer:
Y=3
Step-by-step explanation:
-8 times 3 equals -24
Answer:
y = -3
Step-by-step explanation:
-24 = 8y
Divide both side by 8
-24/8 = 8y/8
-24/8 = y
divide -24 by 8 to get -3
-3 = y
rewrite ..( optional )
y = -3
help me solve this with step-by-step please.
Answer:
x=1
y=-2
Step-by-step explanation:
In Picture
Please give brainliest, thanks!
Determine the interest paid on an investment of $2700 for 3years at a rate of 7.5% per annum compound interest
Step-by-step explanation:
hope you have understood.
Pls help quicky! I will also give a brainliest!!!!!
Answer:
A) 7.12
Step-by-step explanation:
Simply, subtract 10.52 by 3.4 to get your answer or plug in each answer until you get 10.52
Hope this helps, good luck! :)
MAX POINTS AND BRAINLIEST
Use the table below to write an equation in slope intercept form. How did you find the slope and the y intercept of the equation?
Answer:
y = 8x+9
Step-by-step explanation:
First find the slope
m = (y2-y1)/(x2-x1)
= ( 57-17)/(6-1)
= 40/5
= 8
The slope intercept form is y = mx+b where m is the slope and b is the y intercept
y = 8x+b
Substitute a point into the equation
33 = 8*3 +b
33 = 24+b
Subtract 24 from each side
33-24 = 24+b-b
9 = b
y = 8x+9
#equation
(1,7)(3,33)Slope
m=33-17/3-1m=16/2m=8.Now
y-y_1=m(x-x_1)y-17=8(x-1)y-17=8x-8y=8x+9On comparing to slope intercept form
y intercept is 9
When laid flat, a round parachute has a radius of 6 meters. What is the parachute's diameter?
Answer:
12 meters
Step-by-step explanation:
The diameter is twice the radius
d = 2r
d = 2(6)
d = 12 meters
Answer:
the diameter is 12
Step-by-step explanation:
radius is half of the diameter
A cell phone company dropped the price by 7%. Which expression shows the new price of the phones(p)? A 0.07p B p-1.07 C p-0.07 D p-0.07p E 0.93p
Answer:
option D
Step-by-step explanation:
Let the price be p
7% of price = 0.07p
Price after decrease = p - 0.07p
If Elena sells 15 adult tickets, does she sell at least 100 total tickets ? Justify your work
DUE AT 9:50 JUST GIVE ME AT LEAST 2 PARAGRAPHS PLS
Answer: baby 5
Step-by-step explanation:
I dont know 5+5 = baby 5
Complete the steps to solve the -19x - 11=-144
Step-by-step explanation:
-19x - 11 = -144
collect like terms,
-19x = -144 + 11
-19x = -133
Divide both sides by the coefficient of x
-19x/-19 = -133/-19
-19 cross with -19 leaving x, negative cross with negative leaving 133/19
133÷19
Therefore, x = 7
Find the indicated side of the right triangle, please help!
Answer:
x = [tex]7\sqrt{3}[/tex]
Step-by-step explanation:
By applying tangent rule in the given triangle,
tan(60°) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
[tex]\sqrt{3}=\frac{x}{7}[/tex]
x = [tex]7\sqrt{3}[/tex]
Therefore, answer will be,
x = [tex]7\sqrt{3}[/tex]
Evaluate yx^y - xy^x for x = 1/2 and y=4.
A: -3/4
B: -1/2
C: 1/4
D: 3/4
Answer:
b
Step-by-step explanation:
What is the solution to the linear equation?
2.8y + 6 + 0.2y = 5y – 14
Answer:
2y +3x
Step-by-step explanation:
sjsjdjdsndnjssje
The table shows the relationship “Mason rode 15 miles per hour on his bicycle.”
Hours (h)
Miles (m)
1
15
2
30
3
45
4
60
5
75
Which statements are correct? Check all that apply.
The variable m is the independent variable.
The number of miles increases as time increases.
The number of hours causes a change in the number of miles ridden.
The variable h is the independent variable.
The variable h is the dependent variable.
The farther Mason rides, the less time it takes.
The variable m is the dependent variable.
Answer:
Step-by-step explanation:
I'm assuming that the variable m is miles. You have to make that clear. It makes any answerer on here a little cranky when we have to guess.
A: Wrong. The first statement is wrong. m is the dependent variable. Time is usually the independent variable as it is in this case.
B: True. That happens
C: True. Miles increases as time increases.
D: True. If h is hours then H is the independent Variable
E: is wrong. H cannot be both, and it is not the dependent variable
F: False: The further he rides, the more time it takes.
G: True: m is the dependent variable.
Correct Statements.
B C D G
What is the greatest common factor of...
Answer:
3 a²b
Step-by-step explanation:
This is what I did:
3 a²b ( 5b² - 7a²)
when you try to expand this, it will give you back the original expansion so 3a²b is the greatest common factor
Help pleaseeeeeeeeeeeeeeeeeeeeee
Answer:
The answer is -20.
Step-by-step explanation:
To evaluate the expression, plug x= -3 and y= -5 into the expression. By plugging in the information given from the problem, the expression will look like 4(-3) + 3(-5) + 7.
Next, solve the expression, and the answer will be -20.
For 4 weeks, William volunteered as a helper for swimming classes. The first week, he volunteered for 8 hours. He volunteered for 12 hours in the second week, and another 12 hours in the third week. The fourth week, he volunteered for 9 hours. For how many hours did he volunteer per week, on average?
Helppp pleaseee & thank you!!!
Answer:
A
Step-by-step explanation:
Let r(x)=x^2.If r(x)=4,find x
A.2
B.-2
C.4
D.Both 2 and -2 are correct
E.None of these choices are correct
How much should be added to 58.4 to makes 400?
Answer:
341.6
Step-by-step explanation:
400-58.4=341.6
how do you find slope of (2,1) and (-6,-4)
-5/-8
Step-by-step explanation:
I think the question is asking about the gradient so to find the gradient, you need to minus the first y coordinate form the second y coordinate
-4 - 1 = -5
then the first X from the second X
-6 - 2 = -8
