Manda converted the following repeating decimal a fraction. Her work is shown below.
Answers
In analyzing Manda’s work, she made a mistake instep 3, she did not subtract one x from the left side.
What is the fraction about?Fractions are known to be the parts of a complete or whole numbers of objects. It is known to have a numerator and a denominator and when solving for it, the rule of BODMAS must be obeyed.
In step 3 we see that (image attached) she did not subtract one x from the left side. The right thing to do is to use x to cancel out on the both side and that will make the answer to be correct but she did not.
So her error is seen in step 3 and as such, option C is correct.
See full question in the image attached.
Options are
Analyze Manda’s work. Is she correct? If not, what was her mistake?
A. Yes, she is correct.
B. In step 2, she needed to multiply both sides by 10.
C. In step 3, she did not subtract one x from the left side.
D. In step 4, she did not simplify her fraction.
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Related Questions
There are 4 captains of the football team. how many different ways can they line up to receive their championship rings?
Answers
24 different ways can they line up to receive their championship rings.
What is a permutation mean in math?
When the order of the arrangements matters, a mathematical technique called a permutation can be used to calculate the number of alternative arrangements in a collection. Common mathematics problems involve choosing only several items from a group of items in a specified sequence.What are permutations used for?
When an arrangement requires an order or a sequence, permutations are used. Combinations are employed when determining merely the number of potential groups is required and neither the order nor the sequence of arrangements is necessary.Given,
No. of captains of the football team = 4
So,
4 ways we can line up their championship rings = (4,4)
4 ×3 ×2 ×1 = 24
Therefore, 24 different ways can they line up to receive their championship rings.
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i need the answer for this question, look at the image below for help
Answers
Answer:
x axis is -2.
y axis is +1.
(-1, 3)
What is Meant By Graphing Functions?Graphing functions is drawing the curve that represents the function on the coordinate plane. If a curve (graph) represents a function, then every point on the curve satisfies the function equation.
According to the question,
The following graph represents the linear function f(x) = x -2
Take any point on this line, say, (-1, 3).
Let us substitute (-1, 3) = (x, y) (i.e., x = -1 and y = 3) in the function f(x) = -x + 2 (note that it can be written as y = x - 2).
Then
3 = -(-1) + 2
3 = 1 + 2
3 = 3, thus, (-1, 3) satisfies the function.
In the same way, you can try taking different points and checking whether they satisfy the function. Each and every point on the line (in general called "curve") satisfies the function.
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What is the equivalent 6/10 1. 3/5 2. 9/12 3. 20/50 4. 40/50
Answers
Answer:
1.) 3/5
Step-by-step explanation:
When know that 3/5 is equivalent to 6/10 because both the numerator and the denominator are scaled up/down by the same amount. To be precise, we can get the answer of 3/5 by dividing the numerator and denominator by 2.
6 / 2 = 3
10 / 2 = 5
John bought a computer scanner and supplies for $215.70, which will
allow him to scan images for $0.34 each. A computer center charges
$0.59 to scan each image. How many images must John scan before
his total cost is less than getting scanned images at the computer
center?
Answers
John must scan more than 862 images before his total cost is less than getting scanned images at the computer center.
To determine how many images John must scan before his total cost is less than getting scanned images at the computer center, we can set up an equation.
Let's denote the number of images John needs to scan as "x."
The total cost for John to scan x images is given by:
John's total cost = cost of scanner + cost of supplies + cost per image scanned
John's total cost = $215.70 + ($0.34 * x)
The total cost for scanning x images at the computer center is given by:
Computer center's cost = cost per image scanned * x
Computer center's cost = $0.59 * x
We want to find the point at which John's total cost is less than the computer center's cost. In other words, we want to find the value of x for which John's total cost is less than the computer center's cost:
John's total cost < Computer center's cost
$215.70 + ($0.34 * x) < $0.59 * x
Now, we can solve for x:
$215.70 + ($0.34 * x) < $0.59 * x
$215.70 < $0.59 * x - $0.34 * x
$215.70 < $0.25 * x
Divide both sides of the inequality by $0.25:
$\frac{215.70}{0.25} < \frac{0.25 * x}{0.25}$
862.80 < x
Therefore, John must scan more than 862 images before his total cost is less than getting scanned images at the computer center.
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What is the recursive formula for this geometric sequence? -3. -21, -147, -1029, …
Answers
Answer:
[tex]a_{n}[/tex] = 7[tex]a_{n-1}[/tex]
Step-by-step explanation:
A recursive formula allows a rem in the sequence to be found by multiplying the previous term by the common ratio r
For this sequence
r = [tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{-21}{-3}[/tex] = 7 , then recursive formula is
[tex]a_{n}[/tex] = 7[tex]a_{n-1}[/tex]
In a Fischer projection with only one horizontal line crossing through the vertical line, the point at which the two lines cross represents ______________.
Answers
The Central Carbon
What is Fischer's projection?It is a method that represents the three-dimensional structures of molecules on a single page. These are a convenient way to represent the molecules and distribute them between the pairs of enantiomers. These are very often used to represent isomers of sugars.
The Fischer Projection consists of horizontal and vertical lines, the horizontal lines represent atoms that are pointed out of the plane and the vertical line represents atoms that are pointed away from the plane. The intersection point of the horizontal line and the vertical line represents the central carbon.
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Can someone help me out on this geometry postulate questions? It’s urgent
Answers
20) [tex]\overline{AC} \cong \overline{AC}[/tex] by the reflexive property, so SSS
21) [tex]\overline{CD} \cong \overline{CD}[/tex] by the reflexive property, so ASA
22) [tex]\overline{CE} \cong \overline{CB}, \overline{AC} \cong \overline{CD}[/tex] by the definition of a midpoint and [tex]\angle 1 \cong \angle 2[/tex], so SAS
23) [tex]\overline{AC} \cong \overline{AC}[/tex] by the reflexive property, so ASA
38. For the following exercises, sketch a line with the given features.
38. An x-intercept of (-4,0) and y-intercept of (0,-2)
Answers
Answer:
see image
Step-by-step explanation:
The x-intercept is the point where the line crosses the x-axis (horizontal, left and right line with numbers, arrows at both ends, usually marked x at the right end)
The y-intercept is where your line crosses the y-axis (vertical, up-and-down line with numbers, arrows at the ends, usually marked y at the top)
Two points determine a line.
Draw a line through the two points given. See image.
In the figure above, AP and CQ are tangents to the circle.
If ∠ABC = 60° and ∠BAP = 40°, find ∠BCQ.
Answers
Answer:
30
Step-by-step explanation:
You take a protractor and put at c then you measure
What is the point-slope form of a line with slope that contains the point
(-3, 6)?
OA.y-3=2(x+3)
OB. y+6=2(x+3)
OC. y-6=-2(x+3)
D. y-6=2(x+3)
Answers
The point-slope form of a line with slope that contains the point
(-3, 6) is y-6=2(x+3)
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
The point-slope form of a line is given by y - y₁ = m(x - x₁)
where m is the slope of the line, and (x₁, y₁) is a point on the line.
We are given that the line has a slope, but we are not given what the slope is.
The given point is (-3, 6)
y - 6 = m(x - (-3))
y - 6 = m(x+3)
As per the given options which matches the point slope form is y-6=-2(x+3)
Hence, the point-slope form of a line with slope that contains the point
(-3, 6) is y-6=2(x+3)
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question is below please it was very hard
Answers
Based on the polynomial function given, the lower bound can be found to be -14.
What is the polynomial function's lower bound?With f(x) being:
= x⁴ - 4x³ + 9x² - x - 14
Then f'(x) will be:
= 4x³ - 12x² + 18x - 1
If f'(x) is 0:
0 = 4x³ - 12x² + 18x - 1
x = 0.0578
So:
f(0.05) = -14.028
The lower bound is therefore -14.
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A 19 ft. ladder is leaning against a building that it is 13 ft. away from. Using the drawing below (not drawn to scale), find θ between the top of the ladder and the building. Round your answer to the nearest degree.
Answers
Answer:
43 °
Step-by-step explanation:
The ladder is the hypotenuse 13 feet is one leg of a a right triangle
sin = opposite leg / hypotenuse
sin (theta ) = 13 / 19
theta = arcsin (13/19) = 43°
Which solution shown below contains an error?
O 3 4
3x 4
O
x+2 x+2
O 2
x+1
8
x-6
=
=
2
x+2
=
=
3x+4
고
1
X+1
2x-12
80x+8
(x+1)(x-6) (x+1)(x-6)
+
=
10x-4
(x+1)(x-6)
Answers
PLEASE HURRY!!!!!!!!!!!!!!!!!
Answers
6759
Step-by-step explanation:
y eso es
Which number line represents the solution for the
inequality |2x - 5] ≥ 3?
Answers
The attached graph represents the number line of the inequality |2x - 5] ≥ 3
How to determine the number line?The inequality is given as:
|2x - 5] ≥ 3
Remove the absolute value sign
2x - 5 ≥ 3 or 2x - 5 ≥ -3
Add 5 to both sides
2x ≥ 5 + 3 or 2x ≥ 5-3
Evaluate
2x ≥ 8 or 2x ≥ 2
Divide through by 2
x ≥ 4 or x ≥ 1
Combine both inequalities
x ≤ 1 and x ≥ 4
See attachment for the number line
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A dolphin swims 665,280 feet in 3 hours find the dolphin's rate in feet per hour.
Answers
Using the Speed-Distance-Time relation, the Dolphin's rate in Feet per hour is 221,760 ft/hr.
What is Speed-Distance-Time relation?Speed indicates how quickly something or someone is moving. If you know how far something has traveled and how long it took to get there, you can calculate its average speed. Speed is calculated as follows: speed = distance * time. Knowing the units for distance and time is necessary to calculate the units for speed. The units in this example will be meters per second because the distance is measured in meters and the time is measured in seconds. Similar to an equation, the formula can be changed. We require the other two in order to calculate one of the variables. For instance, we need to know the length of the journey and the pace of movement in order to calculate the travel time.Given, we have the distance travelled by dolphin is 665,280 feet and time is 3 hours.
s = d/t = 665.280/3 = 221,760 feet per hour
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Which expression is equivalent to this polynomial? 9x² +4 OA. (3x+21)(3x-21) OB. (3x+2)(3x - 2) OC. (3x+21)² OD. (3x + 2)²
Answers
Answer:
None of these
Step-by-step explanation:
None of this expressions are equivalent. But if the original polynomial is 9x^2-4, then answer would be (3x+2)(3x-2).
Using formula (a+b)(a-b)=a^2-b^2 , it follows:
(3x+2)(3x-2)=(3x)^2-2^2=9x^2-4
PLEASE HELP!
The measure of angle B = 27 degrees, measure of angle C
= 82 degrees, and b = 12. Then a =
nearest tenth.
to the
Answers
Answer: 25,0.
Step-by-step explanation:
∡B=27° ∡C=82° b=12 a=?
∡A=180°-(27°+82°)=180°-109^°=71°.
[tex]\frac{a}{sinA} =\frac{b}{sinB} \\a=\frac{b*sinA}{sinB}=\frac{12*sin71^0}{sin27^0}=\frac{12*0,9455}{0,454} \approx25,0[/tex]
A bucket of chicken had 12 pieces and cost $9.48. After 3pm it was on sale for $0.10 off per piece. What was the sale price per piece of chicken?
Answers
Answer:
The sale price per piece of chicken was $0.69
Step-by-step explanation:
• We have to first calculate the price of 1 piece of chicken when 12 pieces cost $9.48.
Original price per piece = $9.48 ÷ 12
= $0.79
• According to the question the price per piece decreased by $0.10 during the sale.
∴ Sale price per piece = $0.79 - $0.10
= $0.69
HELP!!!!!!!!
Find the direction of vector shown above. A. -68.2 N of E B. -21.8 N of E C. 21.8 N of W D. 68.2 N of W
Answers
The direction of the vector is - 21.8 N of E , Option B is the answer.
What is a Vector ?A vector is an object with both magnitude and direction.
A vector is shown in the graph.
To determine the direction , The angle needs to be determined
The slope of the vector will give the direction of the vector
The vector starts from the point (1 , 1)
Another point on the vector (-4 , 3)
slope = -2 /5
It is making angle x with the line y = 1
tan x = -2 /5
x = - 21.8 N of E.
Therefore the direction of the vector is - 21.8 N of E , Option B is the answer.
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Find the volume in cm^3 of a right circular cylinder with a radius of 10 cm and height of 14 cm
Answers
4398.22 cm³ the volume of cylinder.
What is volume of cylinder?
'Volume' is a mathematical quantity that shows the amount of three-dimensional space occupied by an object or a closed surface. The unit of volume is in cubic units such as m3, cm3, in3 etc.Given,
Height of cylinder = 14 cm
radius of cylinder = 10 cm
Now using formula volume of the cylinder = π r² h
put value in formula,
3.14 × 10× 10 × 14 = 4398.22 cm³
Therefore, 4398.22 cm³ the volume of cylinder.
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What is the degree form for 4π/5 radians?
Answers
Answer: 144 degrees
Step-by-step explanation:
Formulas:Radian ⇒ Degree = 180/π
Degree ⇒ Radian = π/180
[tex]\frac{4\pi }{5} *\frac{180}{\pi } =\frac{4}{5} *\frac{180}{1} =\frac{720}{5} =144[/tex]
Therefore your answer is 144 degrees
Hello !
π rad <=> 180°
4π/5 rad <=> ?°
The calculation ils attached.
We found 144°.
Have a nice day ;)
Which is equivalent to start root 10 EndRoot Superscript three-fourths x ?
Answers
Answer:
d&#&#;#;'xn x;e;÷hr&÷h÷ebb ehehhbbsssshhheu73334914218899110
Which of the following systems of inequalities has point C as a solution? Two linear functions f of x equals 3 times x plus 4 and g of x equals negative one half times x minus 5 intersecting at one point, forming an X on the page. A point above the intersection is labeled A. A point to the left of the intersection is labeled B. A point below the intersection is labeled C. A point to the right of the intersections is labeled D. f(x) ≤ 3x + 4 g of x is less than or equal to negative one half times x minus 5 f(x) ≥ 3x + 4 g of x is less than or equal to negative one half times x minus 5 f(x) ≤ 3x + 4 g of x is greater than or equal to negative one half times x minus 5 f(x) ≥ 3x + 4 g of x is greater than or equal to negative one half times x minus 5
Answers
The inequalities that will have point C as a solution are;
f(x) ≥ 3x + 4
g of x is greater than or equal to negative one half times x minus 5
What is the solution of the Inequality?We can see the inequality graph in the attached file.
Now, the two lines in the graph represent the equations;
f(x) = 3x + 4
g(x) = -¹/₂x - 5
Now, we see the point C and from inspection of the graph, we can see that it is to the right of f(x) and to the bottom of g(x) an as such the inequalities that will have point C as a solution is;
f(x) ≥ 3x + 4
g of x is greater than or equal to negative one half times x minus 5
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can someone help me please
Answers
answer:
oops, I accidentally messed this one up, so sorry
Answer:
"We can't use any of the patterns"
Step-by-step explanation:
You can't use [tex](U+V)^2[/tex] because that would result in some stuff in the middle. In general if you have something like that it would expand to [tex]U^2+2UV + V^2[/tex]. and same thing for the (U-V)^2 except the middle would be a negative number. You also can't use [tex](U+V)(U-V)[/tex] because it specifies "constant integers" and the "integer" part is what's really important, because you can technically rewrite the sum of squares as (U + V)(U - V) but you would need to use imaginary numbers. Because the difference of squares is defined as [tex]a^2-b^2 = (a-b)(a+b)[/tex]. But you can also think of it like this [tex]a-b = (\sqrt{a} - \sqrt{b})(\sqrt{a}+\sqrt{b})[/tex] because that's essentially what the original identity is saying. Using this definition you can write the sum of squares as [tex]a+b = a - (-b) = (\sqrt{a} + \sqrt{-b})(\sqrt{a} - \sqrt{-b}) = (\sqrt{a} + i\sqrt{b})(\sqrt{a} - i\sqrt{b})[/tex]. So with the restriction of constant integers "We can't use any of the patterns" is the correct answer
Solve each problem and check your answer using estimates. a. $18.79 + $2.11 + ‐$1.92 + $17.28 b. $7.45 + ‐$24.45 + $74.17 + ‐$76.52 c. $98.45 − $10.63 + $2.82 − $20.26
Answers
The solution to the linear expressions are:
a. $36.26b. -$19.35c. $70.38Solving linear expressions:The solution to linear expression is determined by taking into consideration the arithmetic operations used in each linear expression.
From the information given:
a. $18.79 + $2.11 + ‐$1.92 + $17.28
By rearrangement:
= $18.79 + $2.11 + $17.28 ‐$1.92
= $36.26
b. $7.45 + ‐$24.45 + $74.17 + ‐$76.52
By rearrangement:
= $7.45 + $74.17 ‐ $24.45 ‐ $76.52
= -$19.35
c. $98.45 − $10.63 + $2.82 − $20.26
By rearrangement:
= $98.45 + $2.82 − $10.63 − $20.26
= $70.38
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express 0.139 in p/q form bar on 39
plss answer it
Answers
The expression of the decimal 0.139 in fraction form of p/q gives; 139/1000
How to convert decimal to fraction?
We are given the decimal 0.139.
Now, when we want to convert to fraction, it means we want the decimal expression to have a numerator and a denominator.
Thus;
0.139 can also be expressed as; 139/1000
Therefore, the expression of the decimal 0.139 in fraction form of p/q gives; 139/1000
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what is the length of the diagonal of the square shown below
Answers
Answer:
7[tex]\sqrt{2}[/tex]
Step-by-step explanation:
the diagonal d divides the square into 2 right angles.
using Pythagoras' identity in one of the right triangles , then
d² = 7² + 7² = 49 + 49 = 98 ( take square root of both sides )
d = [tex]\sqrt{98}[/tex] = [tex]\sqrt{49(2)}[/tex] = [tex]\sqrt{49}[/tex] × [tex]\sqrt{2}[/tex] = 7[tex]\sqrt{2}[/tex]
Answer:
c =7√2
Step-by-step explanation:
using the Pythagorean theorem we solve the diagonal ,where the two sides are given to find the hypotenuse.
c² =a² + b²
where c is the diagonal (hypotenuse fot thr triangle)
a and b are the legs (sides)
c² =7²+7²
c²= 98
c= √98
c=√49.√2
c=7√2
Container measures 24ft by 8ft by 10ft, if 1 bushel is approximately 2220 cubic inches, approximately how many bushels of grain can the container hold ( 1ft=12in) Show Your work
Answers
Answer:
see below
Step-by-step explanation:
24 ft * 12 in/ft * 8ft * 12 in/ft * 10 ft * 12 in/ft = 3317760 in^3
3 317 760 in^3 / 2220 in^3/bushel = 1494.49 bushels
Just solve it for me no need to explain
Answers
Answer: -5/21.
Step-by-step explanation:
[tex]\frac{2}{5}*[\frac{-3}{7} +(\frac{-1}{6})]=\frac{2}{5} *(-\frac{3}{7} -\frac{1}{6}) =\frac{2}{5}*(-\frac{3*6+1*7)}{7*6} )=\frac{2}{5}*(-\frac{18+7}{42})=\frac{2}{5}*(-\frac{25}{42})=-\frac{5}{21} .[/tex]
Good luck an' have a nice day!
Answer:
Step-by-step explanation: