we you please help me
(a x b) x c = a x (b x c) (Commutative, Associative, Identity, or Distributive)
Answer:
commutative property
Step-by-step explanation:
Write the equation of the line through (5,9) and (5, -3)
Answer:
undefined
Step-by-step explanation:
This is a vertical line and cannot be written in any form.
Mr.Johnson is planning what to wear tomorrow. He has a white shirt, a plaid shirt, and a blue shirt. He has four pairs of pants to choose from. They are black, brown, gray, and white. If he chooses one shirt and one pair of pants, how any possibilities does r. Johnson have?
Answer:
Mr. Johnson has 12 possibilities.
Step-by-step explanation:
The information provided are:
Mr. Johnson has a white shirt, a plaid shirt, and a blue shirt.Mr. Johnson has four pairs of pants, black, brown, gray, and white.He chooses one shirt and one pair of pants.Compute the number of ways to select a shirt and a pair of pants as follows:
Total number of ways = Number of Shirts × Number of pair of pants
[tex]=3\times 4\\\\=12[/tex]
Thus, Mr. Johnson has 12 possibilities.
nats grocery bill was $150 with a 5% discount. what was her bill before the discount
Answer:
Hello, the answer is $7.50 dollars.
5% is 0.5.
You multiply $150 by 0.5, then you get $7.50 dollars as the answer.
Explain how to multiply the following whole numbers 21 x 14
Answer:
[tex]\begin{matrix}\space\space&\textbf{2}&\textbf{1}\\ \times \:&1&\textbf{4}\end{matrix}[/tex]
________
[tex]\frac{\begin{matrix}\space\space&\textbf{0}&8&4\\ +&\textbf{2}&1&0\end{matrix}}{\begin{matrix}\space\space&\textbf{2}&9&4\end{matrix}}[/tex]
Step-by-step explanation:
Given
[tex]21\:\times \:14[/tex]
Line up the numbers
[tex]\begin{matrix}\space\space&2&1\\ \times \:&1&4\end{matrix}[/tex]
Multiply the top number by the bottom number one digit at a time starting with the ones digit left(from right to left right)
Multiply the top number by the bolded digit of the bottom number
[tex]\begin{matrix}\space\space&\textbf{2}&\textbf{1}\\ \times \:&1&\textbf{4}\end{matrix}[/tex]
Multiply the bold numbers: 1×4=4
[tex]\frac{\begin{matrix}\space\space&2&\textbf{1}\\ \times \:&1&\textbf{4}\end{matrix}}{\begin{matrix}\space\space&\space\space&4\end{matrix}}[/tex]
Multiply the bold numbers: 2×4=8
[tex]\frac{\begin{matrix}\space\space&\textbf{2}&1\\ \times \:&1&\textbf{4}\end{matrix}}{\begin{matrix}\space\space&8&4\end{matrix}}[/tex]
Multiply the top number by the bolded digit of the bottom number
[tex]\frac{\begin{matrix}\space\space&\textbf{2}&\textbf{1}\\ \times \:&\textbf{1}&4\end{matrix}}{\begin{matrix}\space\space&8&4\end{matrix}}[/tex]
Multiply the bold numbers: 1×1=1
[tex]\frac{\begin{matrix}\space\space&\space\space&2&\textbf{1}\\ \space\space&\times \:&\textbf{1}&4\end{matrix}}{\begin{matrix}\space\space&\space\space&8&4\\ \space\space&\space\space&1&\space\space\end{matrix}}[/tex]
Multiply the bold numbers: 2×1=2
[tex]\frac{\begin{matrix}\space\space&\space\space&\textbf{2}&1\\ \space\space&\times \:&\textbf{1}&4\end{matrix}}{\begin{matrix}\space\space&\space\space&8&4\\ \space\space&2&1&\space\space\end{matrix}}[/tex]
Add the rows to get the answer. For simplicity, fill in trailing zeros.
[tex]\frac{\begin{matrix}\space\space&\space\space&2&1\\ \space\space&\times \:&1&4\end{matrix}}{\begin{matrix}\space\space&0&8&4\\ \space\space&2&1&0\end{matrix}}[/tex]
adding portion
[tex]\begin{matrix}\space\space&0&8&4\\ +&2&1&0\end{matrix}[/tex]
Add the digits of the right-most column: 4+0=4
[tex]\frac{\begin{matrix}\space\space&0&8&\textbf{4}\\ +&2&1&\textbf{0}\end{matrix}}{\begin{matrix}\space\space&\space\space&\space\space&\textbf{4}\end{matrix}}[/tex]
Add the digits of the right-most column: 8+1=9
[tex]\frac{\begin{matrix}\space\space&0&\textbf{8}&4\\ +&2&\textbf{1}&0\end{matrix}}{\begin{matrix}\space\space&\space\space&\textbf{9}&4\end{matrix}}[/tex]
Add the digits of the right-most column: 0+2=2
[tex]\frac{\begin{matrix}\space\space&\textbf{0}&8&4\\ +&\textbf{2}&1&0\end{matrix}}{\begin{matrix}\space\space&\textbf{2}&9&4\end{matrix}}[/tex]
Therefore,
[tex]\begin{matrix}\space\space&\textbf{2}&\textbf{1}\\ \times \:&1&\textbf{4}\end{matrix}[/tex]
________
[tex]\frac{\begin{matrix}\space\space&\textbf{0}&8&4\\ +&\textbf{2}&1&0\end{matrix}}{\begin{matrix}\space\space&\textbf{2}&9&4\end{matrix}}[/tex]
i need help with finding the value of x
Answer:
x= 10
Step-by-step explanation:
(8x+5)+(3x+25)+(4x)=180
15x+30=180
15x=150
x=10
xoxo, your highness...I need help thank you
WILL MARK BRAINLIEST
Part 1:
Graph the following system of equations. What is the solution set?
2x + y = 3
x = 2y - 1
Part 2:
Solve the following system of equations by substitution. What is the solution set?
y = -2x + 3
x - 2y = - 1
Part 3:
Compare the systems of equations and their solutions in Parts 1 and 2. How are they similar? How are they different?
Complete your work in the space provided or upload a file that can display math symbols if your work requires it. Include the graph of the linear system of equations and the process followed in order to solve the system by substitution.
Answer:
Part 1:
The solution set of the system of equations is x = 1, y = 1
Part 2:
The solution set is x = 1, y = 1
Part 3:
The similarity of the system of equations in Parts 1 and 2 is that they have the same solution set
The difference of the system of equations in Parts 1 and 2 is that they are arranged differently
Step-by-step explanation:
Part 1:
The system of equation is given as follows;
2·x + y = 3...(1)
x = 2·y - 1...(2)
The above system of equations can be written in terms of the variable, y, as follows;
For equation (1), we have;
y = 3 - 2·x
For equation (2), we have;
y = (x + 1)/2
From the attached graph created with Microsoft Excel, we have;
The solution set (the point of intersection) of the system of equations is x = 1, y = 1
To accurately find the common solution, we have;
(x + 1)/2 = 3 - 2·x
x + 1 = 2·(3 - 2·x) = 6 - 4·x
x + 1 = 6 - 4·x
x + 4·x = 6 - 1
5·x = 5
x = 5/5 = 1
x = 1
Therefore, y = 3 - 2·x = 3 - 2× 1 = 1, at the common solution
Part 2:
y = -2x + 3
x - 2y = -1
∴ x = 2y -1
y = -2(2y -1) + 3
y = -4y + 2 + 3
5y = 5
y = 1
x = 2y - 1 = 2 - 1 = 1
x = 1
The solution set is x = 1, y = 1
Part 3
The system of equations are similar in terms of their solution
The system of equations are different in terms of their arrangement
Answer:
put the first answerer as brainliest, i just saw no one else has answered this.
Step-by-step explanation:
Evaluate the expression: 3c - 6d where c = 7 and d = -4
Answer:
45
Step-by-step explanation:
(3)(7)−(6)(−4)
=21−(6)(−4)
=21−(−24)
=45
CORRECT ANSWER GETS BRAINLIEST!
Keeping car tires inflated is essential to safe driving. For one type of car tire, the tire pressure in pounds per square inch (psi) is assumed to be approximately Normal with a mean of 35 psi and a standard deviation of 2 psi. A tire is labeled as underinflated if its pressure is 32 psi or below. What percentage of tires are underinflated?
a. 2.28%
b. 6.68%
c. 93.32%
d. 97.72%
Answer:
B 6.68
Step-by-step explanation:
The solution is, 30.854% is the percentage of tires are underinflated.
What is Z-score?In statistics, the standard score is the number of standard deviations by which the value of a raw score is above or below the mean value of what is being observed or measured. Raw scores above the mean have positive standard scores, while those below the mean have negative standard scores.
here, we have,
First, we find the z-score corresponding to the value given
z-score = (x - mean)/SD
Z-score = (36-35)/2 = 1/2 = 0.5
we find the Probability of (x > 0.5)
we use the standard normal distribution table for this
P( x > 0.5) = 0.30854
This has a percentage 30.854%.
To learn more on Z-score click:
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How may solutions does -3(x-2)=6-3x have
Answer:
Every real number is a solution.
Step-by-step explanation:
−3 (x − 2) = 6 − 3x
(−3) (x) + (−3) (−2) = 6 + −3x
−3x + 6 = 6 + −3x
−3x + 6 = −3x + 6
−3x + 6 + 3x = −3x + 6 + 3x
6 = 6
6 - 6 - 0
0=0
Help please:))))))))))))))))))))
Answer:
option 4; 0
Step-by-step explanation:
[tex]f(x) = \left \{ {{2x + 7; x<1 } \atop {10 - 5x; x \geq 1}} \right.[/tex]
Substitiute in "2" for "x".
Since "2" is greater than "1", then the second equation must be used.
Substitute in "2" of "x".
10 - 5x
10 - 5 * 2
10 - 10
0
Option 4 is 0.
Multiply. 5/6 x 3/10 write your answer in simplest form.
Answer: 1/4 or 0.25
Step-by-step explanation:
If you have any more problems just use ”Mathaway”. I hope this helps!
Plz help I will give brainliest
Answer:
#8. M = -8/9
#9. M = 3/5
f(x)=x²+4x-7 determine the vertex
Answer:
The vertex of this parabola is [tex](-2,-11)[/tex]
Step-by-step explanation:
One way of finding the x-coordinate of the vertex of a parabola is by using the equation [tex]-\frac{b}{2a}[/tex]
From the function [tex]f(x)=x^2+4x-7[/tex], we can see that
[tex]a=1\\b=4\\c=-7[/tex]
This means that
[tex]-\frac{b}{2a}=-\frac{4}{2(1)} =-2[/tex]
So, the x-value of the vertex is -2. Now, we can plug this x-value into the function to find the y-coordinate of the point.
[tex]f(x)=x^2+4x-7\\\\f(-2)=(-2)^2+4(-2)-7\\\\f(-2)= 4-8-7\\\\f(-2)=-11[/tex]
Thus, the vertex of this parabola is [tex](-2,-11)[/tex]
There are 8employees on The Game Shop's sales team. Last month, they sold a total of g games. One of the sales team members, Chris, sold 17 fewer games than what the team averaged per employee. How many games did Chris sell? Write your answer as an expression.
Answer:
(g/8) - 17
Step-by-step explanation:
Given that:
Number of employees = 8
Employees sold a total of g games
Chris sale = 17 fewer than team Average
Number of games Chris sold :
Team average :
Total sales made / number of employees
Team average = g/ 8
Number of games sold by Chris:
(g/8) - 17
what is mean mode and median
Answer:
mean is the average of the numbers (add them all up then divided by how many number there are)
mode is the number that comes out the most often
range is the largest number minus the smallest
median is the middle number when they are lined up from greatest to the least (unless there's two)
Step-by-step explanation:
a song we learned in 5th grade XD that i still remember somehow
Answer:
This is what mean, median, and mode are-
Step-by-step explanation:
Mean is when you add all the number there are and divide by the total of numbers that you added together like this for example.
(1+2+3+4+5 = 15) THEN (15 / 5 = 3) THE MEAN IS 3.
Median is when you group the number from smallest to biggest and keep on crossing out both side of the number till you reach the middle.
(1, 2, 3, 4, 5) YOUR MEDIAN SHOULD BE 3 CAUSE IF YOU CROSS OUT 1,5 THEN 2,4 YOU WILL GET 3.
Mode are the most common number that you will see. You could have no mode or many mode too.
(1, 2, 2, 3, 4, 5) THERE IS ONLY ONE MODE HERE WHICH IS 2.
(1, 2, 3, 4, 5) THERE IS NO MODE CAUSE THERE IS NO REPEATING NUMBER.
(1, 2, 3, 4, 4, 5, 5) THERE IS TWO MODE NOW WHICH ARE 4 AND 5.
HOPE THIS HELPS!
Please can’t you help me!!
REALY FAST PLEASE
Answer:
65%
Step-by-step explanation:
this is because the decrease of price is 247 amd if u divide by original its 65%
Write a linear equation that passes throug the point (2,-9) and has a slope of -5 in slope-intercept form.
Answer: y = -5x +1
Step-by-step explanation:
y+9 = -5(x-2)
y+9 = -5x+10
y = -5x+1
The perimeter of a triangular garden is 72 feet. Find the length of the three sides if the middle length side is 4 feet greater than twice the length of the smallest side, and the longest side is 4 feet less than 3 times the length of the smallest side
Answer:
Smallest length side = 12 ft
Middle length side = 28 ft
Longest length side = 32 ft
Step-by-step explanation:
Perimeter of ∆ = sum of all its length sides
Thus, we are given that:
Perimeter = 72 ft
Let x represent the smallest length side. Therefore:
Smallest length side = x ft
Middle length side = (2x + 4) ft
Longest length side = (3x - 4) ft
Thus:
(2x + 4) + (3x - 4) + x = 72
Solve for x
2x + 4 + 3x - 4 + x = 72
Collect like terms
2x + 3x + x + 4 - 4 = 72
6x = 72
Divide both sides by 6
x = 72/6
x = 12
Find the length of all 3 sides by plugging in the value of x in each expression:
Smallest length side = x ft = 12 ft
Middle length side = (2x + 4) ft = (2(12) + 4) = 24 + 4 = 28 ft
Longest length side = (3x - 4) ft = (3(12) - 4) = (36 - 4) = 32 ft
I’m stuck in this question
Answer:
2x+6=100(being vertically opposite angle)
2x=100-6
2x=94
x=94/2
x=47
What is the value of x?
Answer:
x=60
Step-by-step explanation:
the angle size is half the size of 120 if you draw it out with protractor it will come out to be an angle measurement of 60
if qc is a tangent to circle o and qc=8 and bc=4, then the length of ob is ?
Answer:12
Step-by-step explanation: formula a(a+b)=c(c)
4(4+x)=8(8)
16+4x=64
4x=48
X=12
Answer:
6
Step-by-step explanation:
I took the test
A triangle has sides of lengths 3.2 cm, 4.8 cm and 3.6 cm. Find the ratio of the lengths of the sides to one another
Answer:3/2
Step-by-step explanation:
i just had this on a test a triangle always equals this
The ratio of the lengths of the sides to one another is 0.8:1.2:0.9.
What is the ratio?The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
Given that, a triangle has sides of lengths 3.2 cm, 4.8 cm and 3.6 cm.
The ratio of the lengths is 3.2:4.8:3.6
= 1.6:2.4:1.8
= 0.8:1.2:0.9
Therefore, the ratio of the lengths of the sides to one another is 0.8:1.2:0.9.
To learn more about the ratio visit:
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Find a solution for the equation. Assume that all angles are a cute angles. tan(3Y +32) = cot(Y+32°)
9514 1404 393
Answer:
Y = 6.5°
Step-by-step explanation:
We know that tan(x) = cot(90°-x), so we could rewrite the equation as ...
cot(90 -(3Y+32)) = cot(Y+32)
58 -3Y = Y +32
26 = 4Y
6.5 = Y
One solution is Y = 6.5°.
_____
Additional solutions are found at integral multiples of 45° added to this value.
ANSWER PLSSS NOWWWWW
Answer:
good luck with tht bro.....
Jada gets a quarters from a change machine at an arcade. She receives 4 quarters for every
dollar bill, d, that she puts into the machine.
What variable is dependent and independent between The number of dollor bills which is d and the number of quarters which is q??
Answer:
The dollar bills d are the independent variable while the number of quarters q are the dependent variable
Step-by-step explanation:
Here, we want to state the variable that is dependent and the one that is independent
from the question, she has to put in dollars to get the quarters
so the number of quarters she gets is dependent on the number of dollars put into the machine
Thus, we can conclude that;
The dollar bills are the independent variable while the number of quarters q are the dependent variable
Independent variables are those who are not dependent on other variables. In contrast, their exists dependent variables whose value depends on some other variable(s)' value(s).
For given case, the number of dollar bills 'd' is independent variable with respect to variable 'q'.
The number of quarters 'q' is dependent variable.
What are independent variables?Independent variables are those who are not dependent on other variables for their evaluation.
What are dependent variables?Those variables whose value is decided by the values of other variables. This shows that the variable in consideration is dependent on other variables for its values, thus called dependent variable.
Which of 'd' or 'q' is dependent and independent?If you see it carefully, you'll see that the quarters received from the change machine is depending on how much dollar bills you're feeding to the machine.
Thus, the value of 'q' is dependent on the value of d.
But since d takes its value independent of q (it exists before q exists and doesn't need q to get its values), thus, d is not dependent on q or is independent variable with respect to q(i said "with respect to q" since d might be dependent on some other variable which we do not know right know)
Thus:
The variable 'q' is dependent variable (depends on d)
The variable 'd' is independent variable with respect to 'q.
Learn more about dependent and independent variables here;
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multipy or divide -3 * -6
Answer:
18 if you multiply
Step-by-step explanation:
Answer:
multiply
Step-by-step explanation:
The * sign is a way to show multiplication so that the "x" variable isn't mistaken for you to multiply or vice versa.
-3 * -6 = 18 because a negative number times a negative number has the sum of a positive number.
biren spends 3/8 of his share on clothes and 1/3