Carl writes 14/3 x 7/3 to find the quotient of 4 2/3 divided by 2 1/3. What is his mistake?
The quotient in this Carl multiplies the both value instead of dividing so that is the mistake that made by Carl.
The quotient of 4 divided by 2 1/3 and also explain the mistake that done by Carl
The value of 4 1/3 is 14/3
And the value of 2 1/3 is 7/3
So then we divide 4 2/3 by 2 1/3 is,
[tex]\frac{14 / 3}{7 / 3}=\frac{14}{3} \frac{3}{7}[/tex]
=2
Carl's mistake is thinking that his quotient (2) is equal to the value of the terms involved in it. In fact, 2 is just a multiplier for 7/3 and doesn't have any specific value associated with it.
Hence, this is the quotient in this Carl multiplies the both value instead of dividing so that is the mistake that made by Carl.
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What is the least common denominator for the rational expressions 1 / x² -5 x-6} and 1/x²-12 x+36 ? Show your work.
The least common denominator for the rational expressions 1/x²-5x-6 and 1/x²-12 x+36 is (x-6)(x+1)(x-6).
In the given question
[tex]=\frac{1}{x^{2} -5x-6} , \frac{1}{x^{2} -12x+36}[/tex] ...(i)
First we will factor each denominator
So,
x²-5x-6
On splitting the factors of the above expression , we get
(x+1)(x-6) ....(ii)
x²-12x+36
On splitting the factors of the above expression , we get
(x-6)(x-6) ...(iii)
Substituting the value of (ii) and (iii) in (i) ,we get ;
[tex]=\frac{1}{(x+1)(x-6)} , \frac{1}{(x-6)(x-6)}[/tex]
As the LCM of denominator is the Least common denominator , we have
LCM of (x+1)(x-6) and (x-6)(x-6)
LCM=(x-6)(x+1)(x-6)
Hence the LCD is (x-6)(x+1)(x-6).
Therefore , the least common denominator for the rational expressions 1/x²-5x-6 and 1/x²-12 x+36 is (x-6)(x+1)(x-6).
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answer this by substitution
Answer: X=3, Y=6 z=-1
Step-by-step explanation:
find the value of - |3.4|
Answer:
-3.4
Step-by-step explanation:
"| |" are absolute value which means |-4| is actually 4. However, if there is a negative outside of the lines, than the answer is negative.
Find the number of possible outcomes for following situation.
Three number cubes are rolled simultaneously.
Experiment: Rolling three dice simultaneously
No of possible outcomes: 6*6*6 = 216
The Sample space is shown below:
(1,1,1) (1,1,2) (1,1,3) (1,1,4) (1,1,5) (1,1,6)
(1,2,1) (1,2,2) (1,2,3) (1,2,4) (1,2,5) (1,2,6)
(1,3,1) (1,3,2) (1,3,3) (1,3,4) (1,3,5) (1,3,6)
(1,4,1) (1,4,2) (1,4,3) (1,4,4) (1,4,5) (1,4,6)
(1,5,1) (1,5,2) (1,5,3) (1,5,4) (1,5,5) (1,5,6)
(1,6,1) (1,6,2) (1,6,3) (1,6,4) (1,6,5) (1,6,6)
(2,1,1) (2,1,2) (2,1,3) (2,1,4) (2,1,5) (2,1,6)
(2,2,1) (2,2,2) (2,2,3) (2,2,4) (2,2,5) (2,2,6)
(2,3,1) (2,3,2) (2,3,3) (2,3,4) (2,3,5) (2,3,6)
(2,4,1) (2,4,2) (2,4,3) (2,4,4) (2,4,5) (2,4,6)
(2,5,1) (2,5,2) (2,5,3) (2,5,4) (2,5,5) (2,5,6)
(2,6,1) (2,6,2) (2,6,3) (2,6,4) (2,6,5) (2,6,6)
(3,1,1) (3,1,2) (3,1,3) (3,1,4) (3,1,5) (3,1,6)
(3,2,1) (3,2,2) (3,2,3) (3,2,4) (3,2,5) (3,2,6)
(3,3,1) (3,3,2) (3,3,3) (3,3,4) (3,3,5) (3,3,6)
(3,4,1) (3,4,2) (3,4,3) (3,4,4) (3,4,5) (3,4,6)
(3,5,1) (3,5,2) (3,5,3) (3,5,4) (3,5,5) (3,5,6)
(3,6,1) (3,6,2) (3,6,3) (3,6,4) (3,6,5) (3,6,6)
(4,1,1) (4,1,2) (4,1,3) (4,1,4) (4,1,5) (4,1,6)
(4,2,1) (4,2,2) (4,2,3) (4,2,4) (4,2,5) (4,2,6)
(4,3,1) (4,3,2) (4,3,3) (4,3,4) (4,3,5) (4,3,6)
(4,4,1) (4,4,2) (4,4,3) (4,4,4) (4,4,5) (4,4,6)
(4,5,1) (4,5,2) (4,5,3) (4,5,4) (4,5,5) (4,5,6)
(4,6,1) (4,6,2) (4,6,3) (4,6,4) (4,6,5) (4,6,6)
(5,1,1) (5,1,2) (5,1,3) (5,1,4) (5,1,5) (5,1,6)
(5,2,1) (5,2,2) (5,2,3) (5,2,4) (5,2,5) (5,2,6)
(5,3,1) (5,3,2) (5,3,3) (5,3,4) (5,3,5) (5,3,6)
(5,4,1) (5,4,2) (5,4,3) (5,4,4) (5,4,5) (5,4,6)
(5,5,1) (5,5,2) (5,5,3) (5,5,4) (5,5,5) (5,5,6)
(5,6,1) (5,6,2) (5,6,3) (5,6,4) (5,6,5) (5,6,6)
(6,1,1) (6,1,2) (6,1,3) (6,1,4) (6,1,5) (6,1,6)
(6,2,1) (6,2,2) (6,2,3) (6,2,4) (6,2,5) (6,2,6)
(6,3,1) (6,3,2) (6,3,3) (6,3,4) (6,3,5) (6,3,6)
(6,4,1) (6,4,2) (6,4,3) (6,4,4) (6,4,5) (6,4,6)
(6,5,1) (6,5,2) (6,5,3) (6,5,4) (6,5,5) (6,5,6)
(6,6,1) (6,6,2) (6,6,3) (6,6,4) (6,6,5) (6,6,6)
Favorable outcome (three similar numbers, i.e. getting an identical number in all the three dice) : 6
Probability = No of favorable outcomes/Total no of outcomes = 6/216 = 0.0278
Help me someoneeeeeeeeeeeeeeeeeeeeeeeee
Answer:
Step-by-step explanation:
Record: 2/7 Score: 2 Penalty: None
Nakaylah Lindsay
The Midpoint Formula
Sep 11, 7:10:42 PM
Find the midpoint of the segment with the following endpoints.
Answer:
(2, 2) and (10,8)
Submit Answer
Answer: the midpoint of the segment is (6,5)
Step-by-step explanation:
(2,2) (10,8)
[tex]\displaystyle\\ A_x=\frac{2+10}{2} \\\\A_x=\frac{12}{2} \\\\A_x=6[/tex]
[tex]\displaystyle\\A_y}=\frac{2+8}{2}\\ \\A_y=\frac{10}{2} \\\\A_y=5\\[/tex]
Thus, A(6,5)
What is the solution to the given system of equations?
7a-12b = 10
-2a-4b = 12
pls help me i don’t understand
Answer:
a=−2 and b=−2
Step-by-step explanation:
Let's solve your system by substitution.
7a−12b=10;−2a−4b=12
Step: Solve7a−12b=10for a:
7a−12b=10
7a−12b+12b=10+12b(Add 12b to both sides)
7a=12b+10
7a/7=12b+10/7
(Divide both sides by 7)
[tex] \sf \: a = \frac{12}{7} b + \frac{10}{7} [/tex]
Step: Substitute: 12/7b+10/7 for a in−2a−4b=12:
−2a−4b=12
−2(12/7b+10/7)−4b=12
−52/7b + −20/7=12(Simplify both sides of the equation)
−52/7b+−20/7+20/7=12+20/7
(Add 20/7 to both sides)
−52/7b=104/7
[tex] \sf \: \frac{ \frac{ - 52}{7}b }{ \frac{ - 52}{7} } = \frac{ \frac{104}{7} }{ \frac{ - 52}{7} } [/tex]
(Divide both sides by (-52)/7)
b=−2
Step: Substitute −2 for b in a =12/7b+10/7:
a=/12/7b+10/7
a=12/7(−2)+10/7
a=−2(Simplify both sides of the equation)
7) Krystal wants to make a 54% sugar
solution. She has already poured 2 qt. of a
62% sugar solution into a beaker. How
many qt. of a 38% sugar solution must she
add to this to create the desired mixture?
we know she poured already 2 qts of a 62% sugar solution, hmmm how much will that be in quarts? well, just (62/100) * 2 = 1.24 quarts.
we also know she wants to mixed say "x" quarts of a 38% sugar solution, how many quarts will that be? well, (38/100) * x = 0.38x.
let's make a quick table from that as well as including the desired mixture.
[tex]\begin{array}{lcccl} &\stackrel{solution}{quarts}&\stackrel{\textit{\% of }}{amount}&\stackrel{\textit{qts of }}{amount}\\ \cline{2-4}&\\ \textit{62\% solution}&2&0.62&1.24\\ \textit{38\% solution}&x&0.38&0.38x\\ \cline{2-4}&\\ desired~mixture&y&0.54&0.54y \end{array}\qquad \begin{cases} ~\hfill 2+x&=y\\\\ 1.24 + 0.38x &= 0.54y \end{cases} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{\textit{substituting on the 2nd equation}}{1.24 + 0.38x ~~ = ~~ 0.54(\underset{y}{2 + x})}\implies 1.24+0.38x=1.08+0.54x \\\\\\ 0.16+0.38x=0.54x\implies 0.16=0.16x\implies \cfrac{0.16}{0.16}=x\implies \stackrel{qts}{1}=x[/tex]
Help me please, thank you very much
Answer:710.4
Step-by-step explanation:
points!!!!!!!!!!!!!!!!
Answer:
5 points
Step-by-step explanation:
because yes
The graph shows a proportional relationship between the number of workers and weekly cost in dollars for a company. Use the points (6,3600) and (12,7200) to find the weekly cost for the company for each worker. Use pencil and paper. Describe what a unit rate is used for.
Answer: A unit rate is when you need to convert between measurement systems. There is no picture for the points so this is all i can answer.
Step-by-step explanation:
12k+15=35+2k (2-step equations)
Alex earns a weekly base salary of $650 as a car salesman. He also earns a 9% commission on his monthly sales after the first $10,000. What was his total salary this month if he sold 7 cars whose average price was $4,500 each?
The total salary for the month will be $4535
How to calculate the value?From the information, Alex earns a weekly base salary of $650 as a car salesman. He also earns a 9% commission on his monthly sales after the first $10,000.
If he sold 7 cars whose average price was $4,500 each. The total amount will be:
= $4500 × 7.
= $31500
The commission will be
= 9% × ($31500 × $10000)
= 9% × $21500
= $1935
The total salary for the month will be:
= ($650 × 4) + $1935
= $4535
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Please help asap will give brainliest. Find X and bac
By using the fact that the two angles whose measures are expressed in terms of x are vertical angles, we will see that x = 8.
Then using that we will see that the measure of angle BAC is 63 degrees.
How to find the value of x?On the given diagram, we can see that the two angles whose measures are expressed in terms of x are vertical angles, thus, these two angles have the same measure, then we can write a linear equation that helps us to find the value of x, which is:
(2x + 3) = (4x - 5)
Solving the linear equation for x we get:
2x + 3 = 4x - 5
3 + 5 = 4x - 2x
8 = 2x
8/2 = x = 4
So we can see that the value of x is 4.
Now we want to find the measure of angle BAC.
We can see that the measure of angle BAC plus the measure of the angle to its right will be a right angle, then we can write:
m∠BAC + (4x - 5)° = 90°
Replacing the value of x we get:
m∠BAC + (4*8 - 5)° = 90°
m∠BAC + 27° = 90°
m∠BAC = 90° - 27° = 63°
We conclude that the measure of angle BAC is 63 degrees.
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an elevation more than 18000 feet above sea level is considered extremely high altitude. supplementary oxygen is recommended when climbing extremely high altitudes. a mountaineer plane to climb a mountain with an elevation of 6282 meters. is supplementary oxygen recommended for the climb? why?
Based on the elevation that the mountaineer has to climb of 6,282 meters, supplementary oxygen is needed because this distance is above 18,000 feet.
How many feet is the mountaineer climbing?The limit for what is considered extremely high altitude is given in feet so the mountaineer's elevation of 6,282 meters needs to be converted to feet.
1 meter in feet is 3.28084 feet.
6,282 meters in feet is therefore:
= 6,282 x 3.28084
= 20,610.24 feet
This distance is more than the 18,000 feet above sea level which makes it extremely high altitude and so supplementary oxygen is needed.
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Identify the pattern and find the next three terms.
50,45,40,35, .......
Determine whether each sequence is geometric. If so, find the common ratio. 7,0.7,0.07,0.007, . . . . .
The given sequence is geometric, with common ratio = 0.1.
What is a geometric progression?A geometric progression, sometimes referred to as a geometric sequence in mathematics, is a series of non-zero numbers where each term following the first is obtained by multiplying the preceding one by a constant, non-zero value known as the common ratio.
Given: 7, 0.7, 0.07, 0.007,...
Here, 0.7/7 = 0.07/0.7 = 0.007/0.07 = 0.1
That is, the given sequence follows the only necessary condition required for a sequence to be geometric.
Hence, The given sequence is geometric, with common ratio = 0.1.
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Solve each equation. Check your solutions. x /2 = x + 1/4
⊂ Hey, ausemkattom2559 ⊃
Answer:
x = 1
Step-by-step explanation:
Given:Solve each equation.
Check your solutions.
x /2 = x + 1/4
Solving:
From the given: [tex]\frac{x}{2}=\frac{x+1}{4}[/tex]
Applying fraction cross multiply: [tex]\mathrm{if\;\frac{a}{b}=\frac{c}{d}\mathrm{\:then\:}a\cdot \:d=b\cdot \:c}[/tex]
[tex]x\cdot \:4=2\left(x+1\right)[/tex]
Distribute:
[tex]x\cdot \:4=2x+2[/tex]
Subtract 2x from both sides:
[tex]x\cdot \:4-2x=2x+2-2x[/tex]
[tex]2x=2[/tex]
Divide both sides by 2:
[tex]\frac{2x}{2}=\frac{2}{2}[/tex]
x = 1
As a result, x = 1
Check Answer:
We can substitute to check our solution:
1/2 = 1 + 1/4
1/2 = 1/2
Hence, x = 1
xcookiex12
9/12/2022
Express the quantity as a positive or negative number the record low temperature for a date is 21.7 degrees below zero
The temperature will be represented by the negative number -21.7 degrees.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that the quantity is a positive or negative number the record low temperature for a date is 21.7 degrees below zero.
T = 0 - 21.7
T = -21.7 degrees
Therefore, the temperature will be represented by the negative number -21.7 degrees.
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In triangle PQR , the measure of angle Q is three times the measure of angle . The measure of angle R is 20⁰ more than the measure of angleP . Find the measure of each angle.
a. What are the unknowns in this problem?
A triangle is a shape whose all three angles have a sum of 180 degrees. So from the above definition we know that:
P + Q + R = 180
Q=3P
T=P + 20
Therefore:
P + 3P + P + 20 = 180
5P + 20 = 180
5P = 160
P = 32
Q = 3(32) = 96
R = 32 + 20 = 52
To Additional Control P + Q + R = 32 + 96 + 52 = 180 °Degree
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Consider the sequence:
5,4,3,2, . . .
The 7th term of the above sequence is
______.
The explicit rule for the nth term of the sequence is
______.
PLS HELP!
Answer:
7th term = (-1)
rule for the nth term = an = a+(n-1)d
Step-by-step explanation:
a = 5, d = a2-a1 = 4-5 = -1, n = 7
an = a+(n-1)d
a7 = 5+(7-1)(-1)
a7 = 5-6
a7 = (-1)
What number equal to 48
Answer:
The factor pairs of the number 48 are: 1 x 48, 2 x 24, 3 x 16, 4 x 12, and 6 x 8. When you multiply each of these factor pairs together, you get 48.
Step-by-step explanation:
1 x 48 = 48
2 x 24 = 48
3 x 16 = 48
4 x 12 = 48
6 x 8 = 48
HOPE IT'S HELP:)
Laveen is baking several loaves of bread to sell. She used 6 cups of water and 18 cups of whole wheat flour. How much water was used per cup of flour?
Answer: 3
Step-by-step explanation:
Hong will rent a car for the weekend. He can choose one of two plans. The first plan has no initial fee but costs $0.90 per mile driven. The second plan has an initial fee of $55 and costs an additional $0.70 per mile driven. How many miles would Hong need to drive for the two plans to cost the same?
Answer:
61 miles
Step-by-step explanation:
0.90 x 61 = 54.9
A scale drawing of a school bus has a scale of ; inch to 6 feet. If the length of the school bus is 4, inches on the scale drawing, what'is the actual length of the bus?
A scale drawing of a school bus has a scale of ; inch to 6 feet. If the length of the school bus is 4, inches on the scale drawing, what'is the actual length of the bus?
Simplify each sum or difference. State any restrictions on the variables.
5x/x² - x-6 + 4/x² + 4x + 4
The simplification of the given each sum or difference of the expression [tex]\frac{5x}{x^{2} -x-6} + \frac{4}{x^{2} +4x+4}[/tex] is equal to [tex]\frac{5x^{2} +14x-12}{(x-3)(x+2)^{2}}[/tex] , restriction on the variables is given by x ≠ 3 , x≠ -2.
As given in the question,
Given expression : [tex]\frac{5x}{x^{2} -x-6} + \frac{4}{x^{2} +4x+4}[/tex]
Simplify the given expression by taking least common multiple,
[tex]\frac{5x}{x^{2} -x-6} + \frac{4}{x^{2} +4x+4}\\\\\\= \frac{5x}{x^{2} -3x+2x-6} + \frac{4}{(x+2)^{2}} \\\\\\= \frac{5x(x+2)+4(x-3)}{(x-3)(x+2)^{2}}\\ \\=\frac{5x^{2} + 14x-12}{(x-3))x+2)^{2}}[/tex]
Restriction on the variables is given by x ≠ 3 , x≠ -2.
Therefore, simplification of the given each sum or difference of the expression [tex]\frac{5x}{x^{2} -x-6} + \frac{4}{x^{2} +4x+4}[/tex] is equal to [tex]\frac{5x^{2} +14x-12}{(x-3)(x+2)^{2}}[/tex] , restriction on the variables is given by x ≠ 3 , x≠ -2.
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Find the slope of the line through each pair of points. (0,-1/2) and (7/5, 10)
The slope of the line with points (0,-1/2) and (7/5, 10) is 7.5
What is a slope of line?A line's steepness and direction are determined by the slope of the line. Without actually using a compass, determining a line's slope in a coordinate plane allows one to anticipate whether a line is parallel, perpendicular, or not.
The change in a line's y coordinate relative to its change in x coordinate is referred to as the line's slope. Δy is the net change in the y coordinate, while Δx is the net change in the x coordinate.
Therefore,
m = y₂-y₁/x₂-x₁ (where m denotes the slope) can be used to express how the y coordinate changes in relation to the x coordinate.
Be aware that tan ∅ = y/x
We also refer to this tan as the line's slope
We know that slope, slope = m = [tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]
For the pairs of points (0,-1/2) and (7/5, 10)
⇒ m = [tex]\frac{10 - (-1/2)}{(7/5) - 0}[/tex]
⇒ m = [tex]\frac{21/2}{(7/5) }[/tex]
⇒ m = 15/2
⇒ m = 7.5
Hence, the slope of the line with points (0,-1/2) and (7/5, 10) is 7.5
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The perimeter of a rectangle is 30cm, it’s width is 6cm. Find its area
Step-by-step explanation:
the area of a rectangle is
length × width.
so, in our case
30 × 6 = 180 cm²
be careful to use the right unit for the result. an area is measured in square units based on the units of the given lengths. hence cm² as the given lengths are in cm.
1=t +√2t-3. please show your working
Answer: t=2
Step-by-step explanation:
[tex]1=t+\sqrt{2t} -3\\1-1=t+\sqrt{2t}-3-1\\0= t+\sqrt{2t} -4\\Thus,\\t+\sqrt{2t} -4=0\\Let`s\ \sqrt{t} =x\geq 0\\\Rightarrow\ x^2+\sqrt{2} x-4=0\\x^2-\sqrt{2} x+2\sqrt{2}x-4=0\\ x(x-\sqrt{2})+2\sqrt{2} ( x-\sqrt{2})=0\\ (x-\sqrt{2})(x+2\sqrt{2})=0\\\\x-\sqrt{2} =0\\ x-\sqrt{2}+\sqrt{2}=0+\sqrt{2} \\ x=\sqrt{2}\\ \Rightarrow\ t=(\sqrt{2})^2\\ t=2\\\\x+2\sqrt{2} =0\\x+2\sqrt{2} -2\sqrt{2} =0-2\sqrt{2} \\x=-2\sqrt{2} \notin(x\geq 0)[/tex]