Answer:
4.140393356
Step-by-step explanation:
Mean = (3+4+5+7+10+12+15) / 7 = 8
Count = 7 numbers
Sum of the numbers = 56
Each number minus the mean =
(3-8=-5)(4-8=-4)(5-8=-3)(7-8=-1)(10-8=2)(12-8=4)(15-8=7)
Now square of each of these numbers:
25+16+9+1+4+16+49 = 120
Variance = 120/7 = 17.14285714
Standard deviation = square root of the variance
Sqrt 17.14285714 = 4.140393356
What is the quotient? −4 1/2÷(−2 2/3)
The ages of three brothers are consecutive, even integers. If the sum of the first even integer, three times the second even integer and twice the third even integer is fifty. Find the ages of all three brothers
Answer:
The ages of all three brothers are 4,6,8 years.
Step-by-step explanation:
Here n is the smallest of the three consecutive even integers, the condition gives you this equation
2n + 3*(n+2) + (n+4) = 34.
2n + 3n + 6 + n + 4 = 34
6n = 24
n = 4.
Answer. The ages are 4, 6 and 8 years.
Hope this helps you.
The ages of the three brothers are 6, 8, and 10 years, respectively.
How to determine ages of the three brothersLet the ages of the three brothers be \(x\), \(x+2\), and \(x+4\).
The sum of the first even integer, three times the second even integer, and twice the third even integer is fifty:
\[x + 3(x+2) + 2(x+4) = 50\]
Simplify the equation:
\[x + 3x + 6 + 2x + 8 = 50\]
Combine like terms:
\[6x + 14 = 50\]
Subtract 14 from both sides:
\[6x = 36\]
Divide by 6:
\[x = 6\]
So, the ages of the three brothers are 6, 8, and 10 years, respectively.
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Which of these is a correct statement about the function graphed below?
5
A. Its equation is y = 2x, so it is not a linear function.
B.
Its equation is y = 2x, so it is a linear function.
c. Its equation is y
2", so it is not a linear function.
D. Its equation is y
2", so it is a linear function
Answer:
C
Step-by-step explanation:
It curves so it automatically means it isn't any of the answers that say it is.
Numbers with variable powers are NEVER linear, so it is C.
Same question, but different answer option.
I definitely need help with this math problem.
Which expression is equivalent to 10f-5-5f+2?
15f-3 5f-7
15f-7 or -3+6f
Answer:
5f - 3, I'm assuming there was a typo in the answer choices.
Step-by-step explanation:
10f - 5f + 2 - 5
5f - 3
Graph the lines: y= 4x, y = – 4, and x = - 2.
How are x and y related in the equation 7 (x - y) = 0?
O = -Y
O x=y
O 7x = y
O 7x = -Y
Your itinerary contains a grid map of New York, with each unit on the grid representing 0.25 miles. If the Rockefeller Center is located at (2,−1) and Central Park is located at (7,−6), what is the direct distance (not walking distance, which would have to account for bridges and roadways) between the two landmarks in miles? Round your answer to two decimal places, if necessary.
Answer:
Its 5
Step-by-step explanation:
5 mhm.
mrs. jenningswants to take her kids on a field trip to the musem. the bus cost a total 100 and the meusem will charge 2 per student. what is the maximum number od students that mrs. jennings cantake to the meusem without exceeding her budget of 150
On a budget of $150, Mrs. Jennings will only be able to take 25 kids to the museum.
Mrs. Jennings has $150 in total and has to spend it on the bus and getting the kids into the museum.
After she spends on the bus, she will be left with:
= Budget - Cost of bus
= 150 - 100
= $50
She then spends $2 per kid. The total number of kids she can bring into the museum is:
= Amount remaining/ Cost per kid
= 50 / 2
= 25 kids
In conclusion, she can only take 25 kids.
Find out more at https://brainly.com/question/139108.
PLS HURRY WILL GIVE BRAINLIEST!
Answer:
Y=-3/1x+7
Step-by-step explanation:
-3/1 is the slope, which is negative, and 7 is the y intercept ( the value that is marked at the middle of the y-axis).
Hellooooooo I need help with this !!!!!
Answer:
c. 270m^3
Step-by-step explanation:
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height.
6×5×9
30×9
270
Which type of rock is shown in each of these photographs?
Answer:
igneous
Step-by-step explanation:
igneous rocks are made out of molten lava or magma
Answer:
sedimentary rock/igneous rock and Metamorphic rock
Step-by-step explanation:
help meeee again ¾÷⅕ =
Answer:
decimal: 2.25
fraction: 9/4
Step-by-step explanation:
Answer:
Fraction: 15/4
Decimal: 3.75
Evaluate the expression.
{[(20 – 32) = (-6)}? – 11} = (–7)
What is the value of the expression?
Enter your answer in the box.
please mark this answer as brainlist
The value of the numerical expression {[(20 – 32) ÷ (–6)]² – 11} ÷ (–7) will be 1.
What is the value of the expression?When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.
The expression is given below.
⇒ {[(20 – 32) ÷ (–6)]² – 11} ÷ (–7)
Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction are all part of the PEMDAS formula. To answer the problem properly and accurately, this rule must be followed.
⇒ {[(20 – 32) ÷ (–6)]² – 11} ÷ (–7)
⇒ {[(–12) ÷ (–6)]² – 11} ÷ (–7)
⇒ {[2]² – 11} ÷ (–7)
⇒ {4 – 11} ÷ (–7)
⇒ (– 7) ÷ (–7)
⇒ 1
The value of the numerical expression {[(20 – 32) ÷ (–6)]² – 11} ÷ (–7) will be 1.
More about the value of the expression link is given below.
https://brainly.com/question/23671908
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what is the inverse of g?
g(x) = 3/x+7
Given function :-
[tex]\bf \implies g(x) = \dfrac{3}{x}+7[/tex]
To find its reverse , substitute y = g(x) .[tex]\bf \implies y = \dfrac{3}{x}+7[/tex]
Interchange x and y .[tex]\bf \implies x = \dfrac{3}{y}+7[/tex]
Solve for y .[tex]\bf\implies \dfrac{3}{y}= x -7 \\\\\bf\implies y =\dfrac{3}{x-7} [/tex]
Replace y with f-¹(x) .[tex]\implies\boxed{\red{\bf f^{-1}(x) = \dfrac{3}{x-7} }}[/tex]
You can find the volume of a box by
multiplying its height by its width by its
depth.
You are given a box in the shape of a
cube. Each edge measures 5 cm.
a) Write an expression for the volume
of the box using a power.
b) Calculate the volume of the box.
Answer:
A
Step-by-step explanation:
ez
PLEASE HELP ME ITS ALGEBRA THANK YOUUUU
Answer:
722 kg
Step-by-step explanation:
551:29=x:38
551*38=29x
20938/29=x
x=722 kg
which relation is the function?
Answer:
A is function.
Step-by-step explanation:
Read The Question in the PNG
9514 1404 393
Answer:
A. dollars = euros × 0.75
B. the exchange rate is the slope of the graph
Step-by-step explanation:
A. The graph indicates 1 euro will be exchanged for 0.75 dollars, or 4 euros for 3 dollars.
__
B. This exchange rate is the slope of the line on the graph: 0.75 dollars per euro.
Use function notation to write the equation of the line. PLEASE ANSWER ASAP
Answer:
option 2: f(x) = 4x + 4
Step-by-step explanation:
Graph is positive, so with this you should already know that options: 1, 3, 4 are incorrect since those are negative.
However, let's break it down more.
To write the function for a line, you use y = mx+b
m stands for the rise/run
b stands for the y-intercept
Rise over run is 4/1, or just 4
With this we know that option 3 is not correct, yet again
Our y intercept is 4
With this we know that option 1 is not correct, yet again
This just leaves option 2 and 4 with the correct slope and y-intercept, yet as we said before this is a positive slop, so again, 4 is incorrect
Solve pls brainliest!
Answer:
18 + v = 67
Step-by-step explanation:
v represents Victor's age, and 18 more than it is 67.
Add 18 to Victor's age, resulting in 67.
The equation is 18 + v = 67.
(10)/(4)<(z+8)/(2)<(22)/(4)
Answer:
-3 < z < 3
Step-by-step explanation:
×4
10 < 2z + 16 < 22. -16
-6 < 2z < 6. ÷2
-3 < z < 3
Orlando bought a new couch for 1,968, using the furniture store's finance plan. He will pay 164 a month for 12 months. Which equation can Orlando use to find out how much money he still owes after each month of the plan?
a) y = 164x - 1,968
b) y =1,968 - 164x
c) y = 164x
d) y= 1,968 + 164x
Answer:
B
Step-by-step explanation:
Total(1,968) - x(164) = new value
if Austin burns 120 calories per 30 minutes of weight training how many calories would he burn in 10 minutes?
please help I have a test in 1 hour and I need to know this by then!
Answer:
40 calories per 10 min
Step-by-step explanation:
Because 30 divided by 3 is 10 and 120 divided by 3 is 40
PLEASE HELP ME ITS ALGEBRA THANK YOUUUU
Answer:
8 nights
Step-by-step explanation:
First, you have to find out how many centimeters she knits per night and that can be found by dividing 42 by 6
You get 7, and then you find out how many times 7 must be repeated to make 56
Therefore you get 8 nights
Evaluate.
-11.9
-1
Enter your answer in the box.
-11.9 -1 = -12.9
Your answer is negative 12.9
Answer:
-12.9
Step-by-step explanation:
Hope this helps you! :)
Instructions: Create a table of values for the given function.
Function: f(x) = -4x + 3
Answer:
Domain: {-2, -1, 0, 1, 2}
Range: {-5, -1, 3, 7, 11}
Step-by-step explanation:
Given the function, f(x) = -4x + 3:
We could simply substitute the given x-values into the function to solve for its corresponding y-values:
x = -2:
f(-2) = -4(-2) + 3
f(-2) = 8 + 3
f(-2) = 11
x = -1:
f(-1) = -4(-1) + 3
f(-1) = 4 + 3
f(-1) = 7
x = 0:
f(0) = -4(0) + 3
f(0) = 0 + 3
f(0) = 3
x = 1:
f( 1 ) = -4( 1 ) + 3
f( 1 ) = -4 + 3
f( 1 ) = -1
x = 2:
f(2) = -4(2) + 3
f(2) = -8 + 3
f(2) = -5
Attached is a screenshot of the table containing the same solution displayed in this post.
HELP LAST ATTEMPT !?!!
Answer:
x=21
Step-by-step explanation:
10+2x+128=180 [Angles in a straight line]
2x=180-138
x=42/2
x=21
Given triangle TVU list the sides of the shortest to longest
Answer:
VU, VT, TU
Step-by-step explanation:
List the side lengths of triangle TUV from shortest to longest.
A. VU, VT, TU
B. VT, TU, VU
C. VT, VU, TU
D. VU, TU, VT"
The distance from Ellen's home to her school is 4 miles. If she has already traveled 2 miles, how far does she have to go?
Answer:
6 miles
Step-by-step explanation:
70 of 38.20 is what
Have to write at least 20 words sooo
