Answers
Answer:
D
Step-by-step explanation:
So we have the equation:
[tex]A=\frac{1}{2}(12)(3+7)[/tex]
And we want to find out which of the answer choices is not equivalent.
Thus, let's go through each of the choices.
A)
We have:
[tex]\frac{12(3+7)}{2}[/tex]
This is correct.
Our original equation can be written as:
[tex]A=\frac{1}{2}(\frac{12(3+7)}{1})[/tex]
And if we multiply straight across:
[tex]A=\frac{12(3+7)}{2}[/tex]
We'll get choice A. So choice A is correct.
B)
We have:
[tex]6(3+7)[/tex]
This is also correct.
From our original equation:
[tex]A=\frac{1}{2}(12)\cdot(3+7)[/tex]
If we multiply the first term together:
[tex]A=6(3+7)[/tex]
We'll get choice B. So, choice B is correct.
C)
We have:
[tex]0.5(12)(10)[/tex]
This is correct as well.
If we reduce 1/2 to decimal form and add the operations within the parentheses in the original equation, we will get:
[tex]A=\frac{1}{2}(12)(3+7)\\A=0.5(12)(10)[/tex]
So, C is also correct.
D)
We have:
[tex]\frac{12}{2}\times\frac{10}{2}[/tex]
Note that this is not correct.
This attempted to use the distributive property. However, the distribute property does not work for multiplication. For instance:
[tex]3(2+1)\text{ indeed equals } 3(2)+3(1)[/tex]
However:
[tex]3(2\times1)\text{ does not equal} 3(2)\times3(1)[/tex]
So, choice D is not equivalent.
So choice D is our answer :)
If we evaluate it, we will get 30, in contrast to the 60 of the others.
Related Questions
what is the correct answer
Answers
Answer:
domain: (-4 , infinity)
range: (-1, infinity)
Step-by-step explanation:
the domain is all x values and range is all y values
domain -4, infinity
1/5, 2/3, 0.3333333....., and 0.05 are what kind of numbers? Check one or more answers that apply. Natural Whole Integer Rational Irrational
Answers
Answer:
it's an positive number of integer.
still learning math
they all are rational numbers.
The blank
represents the input of a relation.
F Constant
G Range
H Independent Variable
J Dependent Variable
Answers
Answer:
The correct answer is H. Independent variable.
Step-by-step explanation:
The independent variable, typically represented with the variable x, is the input of the function. In an experiment, this is the variable that the scientist changes in order to see a change in the dependent variable. The independent variable is usually plotted along the x-axis and its values represent the domain of the function.
The dependent variable, conversely, is typically represented with the variable y, and represents the output of the function. In an experiment, the dependent variable would represent that change that occurs due to a change in the independent variable. The dependent variable is usually plotted along the y-axis and its values represent the range of the function.
Hope this helps!
Nicole charges a flat fee of $15 for babysitting plus $7 per hour a) write about equation to find the total payout. b) Evaluate an equation to find the total payout if Nicole babysits for 5 hours.
Answers
Answer:
a) t = 7x + 15
b) Nicole is paid $50 for 5 hours.
Step-by-step explanation:
flat fee = a price that will not change = $15
$7 per hour = a price of $7 for an unknown amount of hours (x) = 7x
Let "x" = amount of hours.
Let "t" = total cost.
Set the equation:
t = 7x + 15
Nicole babysits for 5 hours. Plug in 5 for x in the equation:
t = 7x + 15
t = 7(5) + 15
t = 35 + 15
t = 50
Nicole is paid $50 for 5 hours.
~
Bob is buying the soccer team ice cream after their game today. 8 players want ice cream cookies and 5 players want ice cream cones. If ice cream cones cost $1.25 each and ice cream cookies cost $1.75 each, how much will Bob spend on ice cream for the team?
Answers
Answer:
Bob will spend on ice cream for the team $20.25
Step-by-step explanation:
Hello!!!
In this problem we are expected to solve for the total amount that Bob will spend to buy
8 players ice cream cookies and
5 players ice cream cones
let us calculate as follows
Cost of ice cream cookies for 8 players = 8*1.75= $14
Cost of ice cone for 5 players = 5*1.25= $6.25
Total cost = $14+ $6.25= $20.25
Anbrysoin hatchr brysonhatcher bryon hat5cher bryson hatcher btys]
Step-by-step explanation:
f(x)=4x; g(x)= 4x/9 +9 please help
Answers
Answer:
F ( 4 ( [tex]\frac{x}{9}[/tex] ) +9 ) = [tex]\frac{16x}{9}[/tex] + 36
Step-by-step explanation:
Can anybody tell me the answer for this
11/12-1/3
Answers
Answer:
7/12 + 2q/3
Step-by-step explanation:
11/12 - 1/3
= 11/12 - 4/12
=(11-4)/12
= 7/12
All the picture:
11/12 - 1q/6 + 5q/6 - 1/3
= 11/12 - 1/3 - 1q/6 + 5q/6
= 7/12 + 4q/6
= 7/12 + 2q/3
Answer:
7-8q/12 is the answer
i aspect that it will be helpful for you
Someone help I’m stuck on this
Answers
Answer: 1 is 2 rectangles, 4 in a triangle and a rhombus I think.
Step-by-step explanation:
It says what would the shapes be shown as if it was split on the line.
Plz plz ans this with explanation
Answers
Answer:
D
Step-by-step explanation:
Least common denominator of 7 and 8 = 56
[tex]\frac{-1}{8}=\frac{-1*7}{8*7}=\frac{-7}{56}\\\\\\\frac{1}{8}=\frac{1*7}{8*7}=\frac{7}{56}\\\\\\\frac{-1}{7}=\frac{-1*8}{7*8}=\frac{-8}{56}\\\\\\\frac{1}{7}=\frac{1*8}{7*8}=\frac{8}{56}[/tex]
-8/56 , -7/56 , 7/56 , 8/56 ,
-1/7 , -1/8 , 1/8 , 1/7
Can someone please help?
Answers
Answer:
x² - 1
Step-by-step explanation:
When x - 1 = 3 and x + 1 = 5 we know that x = 4 so (x - 1)(x + 1) = 4² - 1 when x = 4, 5² - 1 when x = 5 and so on. If you look carefully you will notice a pattern, the product is always x² - 1 so the answer to the blank is x² - 1.
8. H={all numbers of the form 3n+1, for n a natural number} under multiplication?
9. J={all numbers of the form 3n+2, for n a natural number under multiplication?
10. K={perfect squares of integers) under addition?
11. L={perfect squares of integers under multiplication?
12. M = {all numbers of the form 2", for n a natural number) under addition
pol
13. N= {all numbers of the form 2", for n a natural number under multiplication?
TIMBER
Answers
Answer and Step-by-step explanation:
H= {all numbers of the form 3n+1, for n natural number} under multiplication:
Sol: all number of the form 3n+1, for n natural number so, put n=2, 3(2) +1 = 7, which is a natural number. A natural number under multiplication does not form a group because its inverse does not exist.
J= {all number of the form 3n+2, for n natural number} under multiplication:
Sol: all the number of the form 3n+2, n is the natural number does not form a group under multiplication because the identity element does not form in this set, and inverse does not exist.
K= {perfect squares of integers} under addition:
Sol: perfect square of integers under addition does not form a group because the inverse does not exist. For example, for any element x, inverse (-x) does not exist because of a square integer.
L= {perfect squares of integers} under multiplication:
Sol: a set of the perfect square of integers under multiplication is not a set, because it does not have the inverse property
M= {all numbers of the form 2, for n natural number} under addition:
Sol: natural number in the form of 2n, n is a natural number under addition is not a group as it does not have identity property. Identity property, under addition, is zero.
N= {all number of the form 2n, n is natural number} under multiplication:
All number of the form 2n, n is the natural number under multiplication is not a group. Because its inverse does not exist. For example, an element x belongs to a natural number; its inverse (1/x) does not exist in this set.
HELP ASAP!! WILL MAKE BRAINLIEST!
Solve for x: −2x − 4 > 8
Select one:
a. x < −6
b. x > −6
c. x < −2
d. x > −2
Answers
Answer:
x>-6
Step-by-step explanation:
-2x-4>8
-2x>8+4
-2x>12
x>12/-2
x>-6
hope u understand : )
Aubrey has a new art box in the shape of a rectangular prism. The box is 12cm by 20cm by 5cm. The only thing in the art box is a new pink eraser with the dimensions shown below: 4cm by 2cm by 0.5cm. What is the volume of the art box not taken up by the eraser?
Answers
Explanation
1. Calculate the volume of the box
12cm*20cm*5cm=1,200cm
2. Calculate the volume of the eraser
4cm*2cm*0.5cm=4cm
3. Subtract the volume of the eraser from the volume of the box
1,200cm-4cm=1,196cm
Answer:
1,196
Step-by-step explanation:
khan academy
WILL GIVE BRAINLIEST TO THE FORST PERSON WHO ANSWERS THIS!! In the diagram below, lines AB and ED are parallel. Angle < BCD is a right angle and < CBF = 125 Find angle CDE.
Answers
Answer:
35°
Step-by-step explanation:
Produce BC in the direction of C which intersects DE at any point say P.
AB || ED... (given)
So, BP would be transversal.
[tex] \therefore m\angle DPB + m\angle FBP = 180\degree\\... (By\: interior \: \angle \: Postulate) \\
\therefore m\angle DPB + 125\degree = 180\degree\\
\therefore m\angle DPB = 180\degree - 125\degree \\
\huge \red {\boxed {\therefore m\angle DPB = 55\degree}} \\
m\angle DCP = 180\degree - 90\degree \\
m\angle DCP = 90\degree \\
x = 180\degree - (90\degree + 55\degree) \\
x = 180\degree - 145\degree \\
x = 35\degree [/tex]
The value of x or the angle CDE will be 35 degrees.
What is the opposite angle theorem?The theorem of vertical angles or angles that are vertically opposing According to the theorem, two opposing vertical angles that are created when two lines cross one other are always equal to one another.
Given that the angle CBF is 125 degrees. The value of the angle CDE will be calculated as below:-
Calculate angle ABC by using supplement angle property:-
∠ABC = 180 - 125 = 55
Draw a horizontal line PQ at point C.
Angle PCQ = 35
Angle CDE = 35
Therefore, the value of x or the angle CDE will be 35 degrees.
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A microbiologist is studying A bacterial culture. Every hour she counts the number of bacteria. Her data is recorded in the table. What is the average increase between 10 AM and 1 PM? round to the nearest integer. please help me with this question??
Answers
Answer: 58
Step-by-step explanation:
From 10 AM to 1 PM the numbers are 161, 368, 842, and 1918
So now we find the difference between the numbers.
368 - 161 = 207
842 - 368 = 474
1918 - 842 = 1076
now it asked for the average so you add them together then divide by 3
which is (207+474+1076)/3 = 585.66666666....
Then it says to round to the nearest integer which is 586
Hey why not mark me as brainliest
The average increase between 10 AM and 1 PM is 586.
What is average?An average is a single number taken as representative of a list of numbers.
Given that, a microbiologist is studying A bacterial culture. Every hour, she counts the number of bacteria.
From 10 AM to 1 PM the numbers are 161, 368, 842, and 1918
The difference between the numbers.
368 - 161 = 207
842 - 368 = 474
1918 - 842 = 1076
Now it asked for the average, so you add them together then divide by 3
Which is (207+474+1076)/3 = 585.66666666....
Rounding to the nearest integer, we get 586
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You take your car in for repairs. The service station charges $200 for parts plus $50 per hour for labor. What is the equation that models the total cost charged by the service station? y= X+
Answers
Answer:
y=50x+200 can i get the brainliest?
Step-by-step explanation:
What is the value of −734÷(−112×3)?
Answers
Answer:
Step-by-step explanation:
Use PEMDAS
First we have to do the operation inside parenthesis
-734 ÷(-112*3) = -734 ÷ -336 {Now division}
= + 2.18
A list has 10 numbers. Each number is a 1, 2, or 3. The average is 2 and the SD is 0. What is the list?
Answers
Answer:
1, 1, 1, 2, 2, 2, 2, 3, 3, 3
Step-by-step explanation:
Since the standard deviation = 0
And the mean of the number = 2
If X is the sum of all the numbers, then
X/10 = 2
Cross multiply and make X the subject of formula
X = 2 × 10 = 20
The sum of the numbers will be 20
The number will be
1, 1, 1, 2, 2, 2, 2, 3, 3, 3
The sum of the above numbers is equal to 20 and the average value of the numbers is equal to 2.
What is the complete factorization of the polynomial below?
Answers
Answer:
(x - 1)(x + 1)(x + 3).
Step-by-step explanation:
x^3 + 3x^2 - x - 3 Factor by grouping:
= x^2(x + 3) - 1(x + 3) x+3 is common .
= (x^2 - 1)(x + 3) x^2 - 1 is the difference of 2 squares.
= (x - 1)(x + 1)(x + 3).
which point is located on the y-axis of a coordinate grid?
Answers
The point on the y-axis is D. (0 , -2).
Here, we have,
we know that,
The points located on the y-axis of a coordinate grid have an x-coordinate of 0.
In other words, the y-axis is the vertical line that intersects the x-axis at the point (0,0).
Any point on the y-axis will have an x-coordinate of 0 and a y-coordinate that can vary depending on its position along the y-axis.
Examples of points on the y-axis include (0,1), (0, -3), and (0, 5).
so, from the given options we get,
The point on the y-axis is D. (0 , -2).
(x, y) 0 is x and -2 is y so that is exactly on the y axis.
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Which of the following equations have no solution? Check all that apply.
6x + 1 = 3(2x - 4)
2-5x = 7x - 12
4(3 - x) = 2(6 - 2x)
5(x + 2) = 2(x-4)
-4(x + 3) = 4(-x-1)
Answers
Hi there! :)
Answer:
Equations 1 and 5.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
We can simply each answer choice to find those which have no solution:
1. 6x + 1 = 3(2x - 4)
6x + 1 = 6x - 12
0 ≠ - 13, NO SOLUTION.
2. 2 - 5x = 7x - 12
14 = 12x
x = 7/6. 1 SOLUTION.
3. 4(3 - x) = 2(6 - 2x)
12 - 4x = 12 - 4x
0 = 0. INFINITE SOLUTIONS.
4. 5(x + 2) = 2(x - 4)
5x + 10 = 2x - 8
3x = -18
x = -6. 1 SOLUTION.
5. -4(x + 3) = 4(-x - 1)
-4x - 12 = -4x - 4
0 ≠ 8. NO SOLUTIONS.
Therefore, the only equations with no solutions are equations 1 and 5.
Answer:
x + 1 = 3(2x – 4) and –4(x + 3) = 4(–x – 1).
Hope this was helpful!
(450) + (77) + 2395 =
Answers
Answer:
2922
Step-by-step explanation:
450 + 77 + 2395=
450 + 77= 527
527 + 2395=2922
Hope this helped!!
10. What are the next three terms in this pattern? 4,-8, 16,
-32,
(Help)
Answers
Answer:
64 , -128 , 256
Step-by-step explanation:
in each term , -2 is being multiplied.....
A. Interviewing college students to find what percentage expects a
job immediately after graduation
B. Collecting the cholesterol readings of a group of elderly people in
a small town
O C. Testing the effectiveness of a mouthwash by allowing one group
to use it and comparing the results with those of a group that
doesn't use it
O D. Testing the effectiveness of a hair product by allowing one group
to use it and comparing results against a control group
Answers
Answer:
B
Step-by-step explanation:
An example of a survey is A. Interviewing college students to find what percentage expects a job immediately after graduation.
What is Survey?A survey is defined as the collection of the data or o=interpretation of the data using a list of questions asked to a particular sample of a population which determines the whole population.
From the given options, we can clearly say that C and D are not an example of a survey since survey doesn't make use of the comparison process.
In both C and D, effectiveness of mouthwash and hair product are done by comparing two groups.
So it is not a survey.
In the case of cholesterol readings, only the elderly people is taken in to account.
So, the best option is A.
Hence the survey example is Interviewing college students to find what percentage expects a job immediately after graduation.
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To which subset of the real number system does the number LaTeX: 1.\overline{5}
1.
5
¯
belong?
Group of answer choices
whole numbers
irrational numbers
rational numbers
natural numbers
Answers
Answer:
[tex]\frac{1}{2}[/tex] is a rational number
Step-by-step explanation:
Given
[tex]Real\ Number = \frac{1}{5}[/tex]
Required
Determine which set of numbers it belongs to
Analyzing the options one after the other;
1. Whole numbers: 0, 1, 2, 3....
2. Natural numbers: 1, 2, 3, 4... 3.
3. Irrational numbers are numbers that can't be expressed as fractions
The option that answers this question is rational numbers because [tex]\frac{1}{2}[/tex] can be expressed as decimal and fraction interchangeable.
Hence;
[tex]\frac{1}{2}[/tex] is a rational number
Find the area and perimeter of a polygon with vertices located at A(-4,-8), B(4, -8), C(4, 0), D(0, 3), and E(-4,0).
Area =
Perimeter =
Answers
Answer:
76 and 34
Step-by-step explanation:
See attached
As we see this is a polygon with sides of AB=BC=AE and CD=DE
Sides AB=BC=AE equal to 8Sides CD=DE = [tex]\sqrt{3^2 + 4^2}[/tex] = 5Area is the sum of areas of a square ABCE with side 8 and a triangle CDE with base of 8 and height of 3:
Area = 8*8 + 1/2*8*3 = 64 + 12 = 76Perimeter = 8*3 + 5*2 = 24 + 10 = 34Simplify the expression. 4+9⋅2÷3−1 8 9 12 77
Answers
Answer:
9
Step-by-step explanation:
Order of Operations: BPEMDAS
Step 1: Write out expression
4 + 9(2)/3 - 1
Step 2: Multiply
4 + 18/3 - 1
Step 3: Divide
4 + 6 - 1
Step 4: Add
10 - 1
Step 5: Subtract
9
how is 9/5 - 1/3 equal 1 and 7/15. Can someone please explain and show work?
Answers
Answer:
Step-by-step explanation:
9/5=9*3/5*3=27/15
1/3=5*1/5*3=5/15
27/15-5/15=22/15=(15+7)/15=15/15+7/15
=1+7/15=1 7/15
Answer:
Below
Step-by-step explanation:
[tex]\frac{9}{5} - \frac{1}{3} \\\\\mathrm{Least\:Common\:Multiplier\:of\:}5,\:3:\quad 15\\\\\mathrm{Adjust\:Fractions\:based\:on\:the\:LCM};\\\\\frac{9}{5}=\frac{9\times\:3}{5\times\:3}=\frac{27}{15}\\\\\frac{1}{3}=\frac{1\times\:5}{3\times\:5}=\frac{5}{15}\\\\=\frac{27}{15}-\frac{5}{15}\\\\\mathrm{Since\:the\:denominators\:are\:equal,\\combine\:the\:fractions}:\\\\\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}\\\\=\frac{27-5}{15}\\\\=\frac{22}{15}[/tex]
[tex]22\div 15 = 1 \:remainder\: 7 = \\1 \frac{7}{15}\\[/tex]
Point V lies between points U and W on Line segment U W. A line has points U, V, W. The length between U V is 2 x minus 4. The length between V W is 4 x + 10.
Answers
Answer:
UW = 36 units
Step-by-step explanation:
The question is incomplete. Here is the complete question
Point V lies between points U and W on Line segment U W. A line has points U, V, W. The length between U V is 2 x minus 4. The length between V W is 4 x + 10. If UW = 9x – 9, what is UW in units?
If a point V lies between points U and W on line segment UW, then based on vector notation, UV + VW = UW.
Given parameters
The length between U and V i.e UV = 2x-4
The length between V and W i.e VW= 4x + 10.
UW = 9x – 9
Required
The length between U and W in units
Since UW = UV+VW, we will substitute the given functions into the formula as shown;
9x-9 = 2x-4+4x + 10.
9x-9 = 2x+4x-4+10
9x-9 = 6x+6
collect like terms on both sides;
9x-6x = 6+9
3x = 15
x = 15/3
x = 5
Substitute x = 5 into the function UW = 9x-9 to ge the length of UW in units.
UW = 9(5)-9
UW = 45-9
UW = 36 units
Hence the required length between line segment U and W in units is 36units.
Answer:
36 units, edge 2020-21
Step-by-step explanation:
aka D/last answer
-
Given the Above diagram, Find the value of x; m
K
I 2y + 13
2
47
92 +1
3
14
+9
4
5
type your answer..
m
type your answer
m
type your answer
6
Answers
Answer/Step-by-step explanation:
m<MAH = 90° (linear pair. It is also supplementary to m<MAK = 90°)
m<MAL + m<HAL = m<MAH
Which is:
(9x + 1) + (x + 9) = 90°
Solve for x
9x + 1 + x + 9 = 90
Collect like terms
9x + x + 1 + 9 = 90
10x + 10 = 90
Subtract both sides by 10
10x + 10 - 10 = 90 - 10
10x = 80
Divide both sides by 10
x = 8
Find m<MAL
m<MAL = 9x + 1
Plug in the value of x
m<MAL = 9(8) + 1 = 72 + 1 = 73°
Find m<HAL
m<HAL = x + 9
m<HAL = 8 + 9 = 17°