You can find the mean of negative numbers just the same as for positive numbers. It doesn't hurt for the mean to be negative.
For example, with the number -9, -5, -4, -3, -1 you can find the mean jsut as any other numbers
-9+-5+-4+-3+-1=-22
-22/5=-4.4
the mean for those set of numbers is -4.4
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Which equation best represents the line graphed above?
Answer: x=2 because for any y value the x value is always 2.
What’s the rise over run pleas???
9514 1404 393
Answer:
-1/5
Step-by-step explanation:
To find the ratio of rise to run on a graph, it is convenient to start by looking for points where the graph crosses the intersection of grid lines. This lets you read the exact coordinates of the points, without any guessing.
In the attachment, the grid crossings we chose are circled.
The "rise" is the vertical distance between the points. If the right point is lower, the "rise" is negative.
The "run" is the horizontal distance between the points.
The reason for choosing grid crossings is that it then becomes fairly easy to count the grid lines between the points, vertically and horizontally.
On this graph, the "rise" is -1 for a "run" of 5. Then the slope, or ratio of rise to run, is ...
m = rise/run = -1/5 . . . . . . slope of the line
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(Pic is provided)
1. Why is segment B'C' on the same line as its corresponding side, segment BC?
2. Explain how you know that segment A'C' is parallel to its corresponding side, segment AC.
3. What relationship does angle ACB have with its corresponding angle A'C'B'? Explain or show your reasoning.
$18 haircut; 10% discount
work it out
Answer:
$16.20 with the discount
Answer:
$16.20
Step-by-step explanation:
Solve the system of equations by substitution.
x = y + 8
4x + 2y = 2
Answer:
y=-5
Step-by-step explanation:
4(y+8) + 2y=2
4y+32+2y=2
6y+32=2
6y=-30
y=-5
How would the domain and range of the function
Y = (1/4)x - 6
be determined? Explain.
Answer:
Domain and range both [tex](-\infty, \infty)[/tex]
Step-by-step explanation:
The range is determined by finding the domain of the inverse of the function(if it has one, in this case it does). The domain is easily determined, because [tex]x[/tex] can obviously range from [tex](-\infty, \infty)[/tex] without restriction.
The inverse of the function can be found as such:
[tex]x=(1/4)f^{-1}(x)-6\\x+6=(1/4)f^{-1}(x)\\4(x+6)=f^{-1}(x)\\f^{-1}(x)=4x+24[/tex].
Here, [tex]x[/tex] can also range from [tex](-\infty, \infty)[/tex] without restriction.
So, the domain and range are both [tex]\boxed{(-\infty, \infty)}[/tex]
Which statement is true?
A. An inch is longer than a foot.
B. A meter is shorter than a centimeter
C. A pound is heavier than an ounce
D. A kilogram is lighter than a gram
Answer:
c
Step-by-step explanation:
other statements are false
The value of y is directly proportional to the value of x. When x=3.5, the value of y is 14. What is the value of y when x = 28?
Answer:
x = 7
Step-by-step explanation:
y = 14
14 x 2 = 28
Therefore:
3.5 x 2 = 7
Value of y is 112 when value of x is 28
Given that;
Value of y is 14 when x = 3.5
Find:
Value of y when value of x = 28
Computation:
We know that, y is directly proportional to x
So,
[tex]Value\ of\ y = 14[\frac{28}{3.5} ] \\\\Value\ of\ y = 14[8]\\\\Value\ of\ y = 112[/tex]
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que es un prisma rectangular y que es un prisma triangular??Plisa es para ahorita en una hora
Answer:
un prisma rectangular es una forma 3D con 6 caras rectangulares listo
Please help me with this! I really need help!
Answer:
18
Step-by-step explanation:
5. Three of the vertices of rectangle ABCD are given. Find the coordinates
of point D. Find the value of the variable.
A(3,6), B(6, 7), C(6,3), D(x, y)
If 5 bats and 4 balls weigh 58 kg, and 4 bats and 5 balls weigh 50 kg, then how much does a bat weigh?
The bat weighs 10kg.
Two equations can be gotten from the question:
5a + 4b = 58 equation 1
4a + 5b = 50 equation 2
Where:
a = weight of bats
b = weight of balls
The two equations are simultaneous equations and would be solved using the elimination method.
In order to determine the weight of balls, take the following steps:
Multiply equation 1 by 4 and equation 2 by 5
20a + 16b = 232 equation 3
20a + 25b = 250 equation 4
Subtract equation 3 from 4
18 = 9b
Divide both sides of the equation by 9
b = 2kg
In order to determine the weight of bats, take the following steps:
Replace for b in equation 1
5a + 4(2) = 58
5a + 8 = 58
5a = 58 - 8
5a = 50
Divide both sides of the equation by 5
a = 10kg
To learn more about simultaneous equations, please check: brainly.com/question/23589883?referrer=searchResults
PLEASE HELP 25 points!! Algebra 1
Answer:
A
Step-by-step explanation:
twice of the second angle
2b
15 less than it
2b - 15
that is the first angle
2b - 15 = a
:)
Please help me with this homework
Answer:
[tex]slop = \frac{y2 - y1}{x2 - x1} = \frac{ - 4 - 1}{ - 4 - 0} = \frac{ - 5}{ - 4} = 1.25[/tex]
Identify the relationship between the pair of angles y and v PLZZZZ THANK YOUUUU
Answer:
Q1. angle x + angle y = 180°
Q2. angle x = angle y
Which function represents the graph
Answer:
A
Step-by-step explanation:
the function is moved up by 8 on the y axis which means you need a +8 that isn't directly attached to the x
The largest virus known to man is the Megavirus, which measures 0.00000044 meters across Express this number in scientific notation.
Answer:
4.4x10⁻⁷
Step-by-step explanation:
Decimal moves 7 places to the right so the exponent if negative.
Amtrak: 80 miles in 5 hours
Metra: 30 miles in 2 hours
Which train is faster? How do you know?
Answer:
hope it helps......................
Answer:
Hello, There! I'll be Glad to help
QuestionAmtrak: 80 miles in 5 hours
Metra: 30 miles in 2 hours
Which train is faster? How do you know?
Answer[tex]\textbf{Amtrak is correct}[/tex]
Step-by-step explanation:
So First we have to figure out Has fast the trains go in 1 hour so we are going to divide...
Metra30 ÷ 2 = 15 Miles (Metra can go 15 Miles in one hour)
Amtrak80 ÷ by 5 = 16 (Amtrak Can go 16 Miles in one hour)
_______________________________________
So If Metra Were to keep going Here are the list of Miles Below
(45 Miles in 3 hours)
(60 Miles in 4 hours)
(75 miles in 5 hours)
________________________________________
Amtrak
(96 Miles in 6 hours)
(112 miles in 7 hours )
(128 miles in 8 hours)
Therefore, Amtrak is the Fastest Train
You don’t have to do all of them only some if you want this these are my last question!
Find the value of x that makes the lines u and v parallel.
I will mark you
Answer:
Q11. 20x=120° (vert opp angles)
x=120÷20
=10
Q12. x+68°=60° (vert opp angles)
x=60-68
=-8
Q13. 80°+x+106°=180° (int angles, u//v)
x+186°=180°
x=180-186
=-6
Q14. 6x+8°=50°
6x=50°-8°
=42°
x=42÷6
=7
What is -6 multiplied by -2x minus -6 multiplied by 1
Answer:
72
Step-by-step explanation:
Answer:
-6 multiplied by -2x minus -6 multiplied by 1
= [tex]-6 * -2x - -6 * 1[/tex]
= [tex](-6 * -2x) - (-6 * 1)[/tex]
= [tex]12x - -6[/tex]
= [tex]12x -(-6)[/tex]
= [tex]12x + 6[/tex]
An ostrich was 960meters east of its nest. It ran west at a constant velocity for 160seconds. In that time, it ran halfway to its nest. What was its velocity?
Answer is 3 m/s.
Step-by-step explanation:-The ostrich ran at a constant velocity, so it's velocity was :
[tex]velocity = \frac{distance}{time} [/tex]
It is said that the bird ran for 160 seconds and it made it half-way to its nest, so the distance was :
[tex]distance = \frac{960 \: metres}{time} [/tex]
[tex]distance = 480 \: metres[/tex]
And the velocity is :-
[tex]velocity = \frac{480 \: metres}{160 \: seconds} [/tex]
[tex]velocity = 3 \: m/s[/tex]
Therefore, the ostrich ran at a velocity of 3 m/s .
Mark has a £5 note. A litre of milk costs 80p. Mark buys as many litre cartons of milk as he can. How much money will he have left over?
Plshelp
find a10 in sequence 3, 1, 1/3, 1/9
Answer:
1/2187 is the 10th answer in the sequence
Step-by-step explanation:
just keep dividing the number by 3
1/9, 1/27, 1/81, 1/243, 1/729, 1/2187
joes grandmother is suffering from fever from many days.he wants to go to his hometown Southampton to see his grandmother.His house is 325 km away from oxford.he covered 1/5th of his journey by bus.227.5km by train.16.25km by taxi and rest on foot.now give ans for the following questions; how much distance did he covered by bus.what fraction of total journey covered by train. How much distance he covered on foot? how much is the difference in distance covered by train and covered by bus?
The distance that will be covered by the bus will be 65km.
Since his house is 325 km away from Oxford and he covered 1/5th of his journey by bus. Then, the distance that's covered by bus will be:
= 1/5 × 325km
= 65 km.
Since 227.5km is covered by train, then the distance covered by train will be: = 227.5/325 = 7/10
The distance covered by foot will be:
= 325 - (65 + 227.5 + 16.25)
= 325km - 308.75km
= 16.25km
The difference in distance covered by train and covered by bus will be:
= 227.5km - 65km
= 162.5km
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Please help!!
Which number is greater?
a)The square root of 64
b) The square root of 16
Answer:
Neither, they are both equal.
Step-by-step explanation:
FYI, that three in front of the radical in the first expression is actually cube root. The cube root of 64 is 4, and the square root of 16 is 4.
[tex]\sqrt[3]{64} =4\\\sqrt{16}=4\\4=4[/tex]
[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\textsf{Option A }\huge\boxed {\downarrow}[/tex]
[tex]\huge\boxed{\rm{\sqrt[3]{64}}}}\\\huge\boxed{= \rm{\sqrt[3]{4^3}}}}\\\huge\boxed{= \rm{\sqrt[3]{4\times4 \times4}}}\\\huge\boxed{\rm{\rightarrow \sqrt{64}= 8, \ because \ 8\times8 = \bf 64}}\\\huge\boxed{\rm{{= \dfrac{8}{2}\rightarrow 8\div 2 \rightarrow \bf 4}}}[/tex]
[tex]\huge\boxed{\textsf{Option A.) answer: \bf 4}}[/tex]
[tex]\huge\textsf{Possible Option A. part II }\huge\boxed\downarrow[/tex]
[tex]\huge\boxed{\rm{\sqrt{64} = \sqrt{8\times8}= \bf 8}}\\\huge\boxed{\text{Possible answer for Option A. part II: \bf 8}}[/tex]
[tex]\huge\textsf{Option B }\huge\boxed\downarrow[/tex]
[tex]\huge\boxed{\rm{\sqrt{16}}}\\\huge\boxed{\rm{= \sqrt{4\times4}}}\\\huge\boxed{\rm{= \sqrt{16} \rightarrow \bold{4}\rightarrow 4\times4 \rightarrow \bf 16}}[/tex]
[tex]\huge\boxed{\textsf{Option B.) answer: \bf 4}}[/tex]
[tex]\huge\boxed{{\textsf{Based on the given information \boxed{\textsf{\bf NEITHER}} is}}}\\\huge\boxed{\textsf{the answer because it seems reasonable \& both}}\\\huge\boxed{\textsf{choices are very much equivalent to each other}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Find the value of the expression 2x2 - 4x2 + 7x – 7 if x= 3. What is the value if x = 2?
Answer:
if x= 3, so it's 32 if x= 2, so it's 7
Step-by-step explanation:
PLLLLLLZZZZZZZ I NEED HELP 100 points if I get the correct answer CLICK ON THE PHOTO I NEED THE WORK AND EXPLANATION!!! Plzzzzzzz
Use this graph for #8
8. What is the domain?
Justify/Show your work:
9. What is the range?
Justify/Show your work:
Answer:
322
Step-by-step explanation:
1
+
1
+
300
=322
Stella and Hazel are the two fastest typists in their computer class. Last week, they had a competition to see whose typing speed was greater.
The table below shows the number of words Stella typed in x minutes during the competition.
Stella's Typing Speed
Time
(minutes) Words
Typed
2 112
4 224
6 336
8 448
The equation below represents the number of words Hazel typed in x minutes during the competition.
Which of the following is true?
A.
Stella typed more words per minute than Hazel during the competition.
B.
There is not enough information to determine the number of words typed per minute during the competition.
C.
Stella and Hazel typed the same number of words per minute during the competition.
D.
Hazel typed more words per minute than Stella during the competition.
Answer:
b
Step-by-step explanation:
The sum of two numbers is 50 and the difference is 4
Step-by-step explanation:
let the 2 numbers be x and x + 4 as their deference is 4.
their sum = 50
now,
→ x + x + 4 = 50
→ 2x + 4 = 50
→ 2x = 50 - 4 = 46
→ x = 46/2 = 23
therefore two numbers are,
x = 23
x + 4 = 23 + 4 = 27
hope this answer helps you dear...take care and may u have a great day ahead!
Step-by-step explanation:
x + y = 50
x - y = 4
x = y + 4
let's use that as substitute in the first equation
y + 4 + y = 50
2y = 46
y = 46/2 = 23
=>
x = y + 4 = 23 + 4 = 27
the 2 numbers are 23 and 27.
