18. A student turned in the following incorrect work. - In what line was the mistake made? - What should the correct step be? - What is the correct final answer?



Be sure to describe your answer in 4-5 sentences.​

18. A Student Turned In The Following Incorrect Work. - In What Line Was The Mistake Made? - What Should

Answers

Answer 1

Answer:

4y³/x³

Step-by-step explanation:

Line 1 is completely correct.

Line 2 has an error.

The 4/1 from line 1 should remain as 4/1 in Line 2, but the student wrote it as 1/4 on Line 2.

To fix it, rewrite Line 2, but change the first fraction, 1/4, to 4/1.

The correct final answer is 4y³/x³


Related Questions

Integers greater than -6 and less than 2

Answers

IN OTHER WORDS WE ARE LOOKING FOR WHOLE NUMBERS BETWEEN -6 AND 2

[tex] - 5 \\ - 4 \\ - 3 \\ - 2 \\ - 1 \\ 0 \\ 1[/tex]

ATTACHED IS THE SOLUTION

Answer:

1,0,-1,-2,-3,-4,-5

Step-by-step explanation:

Complete sheet given

Answers

Answer:

good jb

Step-by-step explanation:

Use the function below to find f(-2).
f(x) = 3x
A. -6
B. -9
O C.
O D.
996
610
9

Answers

Answer:

option d is the correct answer

7. Select all the equations that have the same solution as 3x - 6 = 18.
a. 3x = 12
b. 3x = 24
f.
c. 3(x - 2) = 18
d. 6x 12 = 36
e. 3x 12 = 36
18 = 5 - 3x

Answers

The equation which satisfied the given expression after simplification are (a) 3x = 24 and (c) 3(x - 2) = 18.

How simplification method work?

In mathematics, the simplification method is used for the equation formation for the problem statements. And it also convert the complicated expression into simpler one to make the calculation easy.

According to the question, the given equation can be simplified by using simplification method and it is written below:

The given equation is: 3x - 6 = 18

3x = 18 + 6 = 24 ⇒ 3x = 24

Similarly, 3x - 6 = 18

3(x - 2) = 18

Hence, the equation which satisfied the given expression after simplification are (a) 3x = 24 and (c) 3(x - 2) = 18.

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The graph below shows the number of bushels of soybeans a farmer harvested from his field.NUMBER OF ACRES HARVESTEDwhich set of ordered pairs could have been used to make the graph?A. (3, 125), (4, 200), (5, 225)B. (50, 1), (200, 4), (300, 6)C. (100, 2), (250, 5), (350, 7)D. (2, 100), (3, 150), (5, 250)And don't worry this is just a practice :)

Answers

From the graph, we can see that the set of ordered pairs which belongs to the line are

D). (2, 100), (3, 150), (5, 250)

Because x-axis is the first coordinate and y-axis is the second coordinate. In options B and C, they are

arranged in the wrong place. In option A, point (3,125) doesn´t belong to the line.

.5t + .1 < 10t + .05

Answers

Answer: t> -4/95

Step-by-step explanation: times both sides by 10(just make the calculation easier, no need to do that)

5t+1<100t+5

-95t<4

t > -4/95

Let f(x) = 9x - 8. Find (f o f)(1).

Answers

Let f(x) = 9x - 8. Find (f o f)(1).​

we know that

(f o f)(1).=f(f(1))

step 1

find f(1)

f(1)=9(1)-8

f(1)=1

substitute

f(f(1))=f(1)=1

therefore

the answer is 1

Please help if you can!!!

Answers

Your answer is A. The line is going up by 2 and over by 1, which means it also goes down by 2 and back by 1, making your answer -2. This is also known as rise/run.

Define a variable, write an inequality, and solve: A number decreased by 7 is at least 15

Answers

Inequality: [tex]x-7\ge 15[/tex]

Solution: [tex]x\ge 22[/tex]

Inequality is a mathematical statement which depicts the relation between two or more mathematical variable or quantities which involves in relation which is not equal or inequal.

Given the statement is "A number decreased by 7 is at least 15"

Let the number be the variable x.

Now decreased by 7 = x-7

Suitable inequality sign for at least statement is [tex]\ge[/tex]

So the required inequality is given by,

[tex]x-7\ge15[/tex]

Solving the same we get,

[tex]x-7+7\ge 15+7[/tex]

[tex]x\ge 22[/tex]

Thus the number is [tex]x\ge 22[/tex]

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Homework 4: Trigonometry:Finding Sides and Angle** This is a 2-page document! **x=7.3Directions: Solve for x. Round to the nearest tenth.

Answers

Using trigonometric ratio. SOHCAHTOA

[tex]\begin{gathered} \cos 63^{\circ}=\frac{adjacent}{\text{hypotenus}} \\ \cos 63^{\circ}=\frac{x}{16} \\ x=16\cos 63^{\circ} \\ x=16\times0.45399049974 \\ x=7.26384799583 \\ x\approx7.3 \end{gathered}[/tex]

can someone help me please ? ​

Answers

The most appropriate choice for HCF of two numbers will be given by -

Maximum number of performers in each row so that all the rows are equal in length = 8

What is HCF?

HCF means Highest Common Factor. HCF of two numbers a and b is the largest number that is divides both a and b.

Number of instruments  = 24

Number of flag bearers = 16

Maximum number of performers in each row so that all the rows are equal in length = HCF of 24 , 16

[tex]24 = 2^3 \times 3\\16 = 2^4[/tex]

HCF = [tex]2^3[/tex] = 8

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Barnaby decided to count the number of ducks and geese flying south for the winter. Thefirst day he counted 175 ducks and 63 geese. What is the ratio of ducks to the total num-ber of birds flying overhead in simplest terms?

Answers

So, here we have that there are 175+63 = 238 birds in total.

We want to know the ratio of ducks to the total number of birds flying overhead. There are 175 ducks for a total of 238, so the ratio is:

175:238

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Tobin's friend Rose claims that she can read minds. To test
Rose's abilities, Tobin draws 3 cards without replacement
from a standard deck of 52 playing cards. Tobin asks Rose
to identify each of the 3 cards she drew in order.
Assume that Rose has no special abilities and is randomly
guessing the cards.
What is the probability that Rose identifies all 3 cards in
the correct order?

Answers

The probability that rose identifies all 3 cards in the correct order is 1/132,600 by the concept of permutation.

What is permutation?

It is the separate arrangements of a given number of associates taken all at once, or some of them, or just a few of them. There are two possible meanings, AB and BA, for instance, if we have the two elements A and B.

Following the arrangement of 'r' items from a total of 'n' elements, the number of permutations is,

nPr = n! / (n – r)!

Here to obtain the probability in correct order use permutation formula

Recall that, Probability is calculated as favorable outcomes divided by all possible outcomes.

Favorable number of outcomes = 1 (as only one order is correct)

Total outcomes = 52p3 (since 3 cards to be arranged from pack of 52)

So, the probability of rose identifies all 3 cards in correct order =1/52p3

Probability = [tex]\frac{1}{52!/(52-3)!}[/tex]

Probability = 49! /52!

Probability = 49! /52*51*50*49!

Probability = 1/52*51*50

Probability = 1/132,600

Therefore, the probability that rose identifies all 3 cards in the correct order is 1/132,600.

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Find the distance between the points P (3, 5) and Q (8,7).​

Answers

Answer:

The distance between two points (x₁,y₁) and (x₂,y₂) on the coordinate plane is d=√((x₂-x₁)²+(y₂-y₁)²)

√(8 - 3)² + (7 - 5)² = √29 ≈ 5.3851648071345

Michael has a twelve gallon gas tank. When he filled
his tank up, he pumped nine gallons of gas. What
fraction of his tank had been empty?

Answers

Answer:

3/4

Step-by-step explanation:

9/12  Divide the top and bottom by 3

3/4

help meeeeeeeeeee pleaseeeeeeeeeeeeeeeeeee

Answers

Step-by-step explanation:

I just answered this. how often did you post this basic question ?

Classify the triangle with the following angle measure: 20^, 50^, 110^

Answers

An acute triangle is a triangle with three acute angles, whereas an obtuse triangle is a triangle with one obtuse angle and two acute angles.

An obtuse angle is a angle which is more than 90°.

In our problem, the triangle has a 110° angle, and 110°>90°; therefore, the answer is obtuse triangle

3. Using the diagram below, answer the following questions. Remember, you must
show your work for credit.
LA = 6y+42
ZC
ZD
A. Solve for y. (2 points)
ZA=
y=
I
B. Find the measure of angles A, C and D showing all work. (2 points)
ZC=
LB = 66
ZD =

Answers

Using vertical angles, it is found that:

A. The solution for y is of y = 4.

B. The angle measures are given as follows:

<A = 66º.<C = 114º.<D = 114º.

Vertical Angles

If two angles are opposite by the same vertex in crossing segments, these angles are called vertical angles, and they are congruent, that is, they have the same measure.

In the context of this problem, the angles of 6y + 42 and of 66 are vertical, hence the value of y is calculated as follows:

6y + 42 = 66

6y = 24

y = 24/6

y = 4.

Angles A and C are supplementary, meaning that the sum of their measures is of 180º, hence:

<C + 66º = 180º

<C = 180º - 66º

<C = 114º.

Angles C and D are vertical, hence the measure of angle D is calculated as follows:

<D = 114º.

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Please help I was sick today and I don’t understand

Answers

Answer:

This is a 30 60 90 triangle. They are saying the hypotenuse is 3x + 6 and the shortest side is 8x - 4. In a 30 60 90 triangle, the hypotenuse is 2 times the short side meaning that/

3x + 6 = 16x - 4

Now we can solve...

10 = 13x

x= [tex]\frac{10}{13}[/tex]

Write an equation. Let X represent the number described in the exercise. Then solve the equation & find the number. Four subtracted from the product of 5 and a number is 51.Write an equation.

Answers

We have to write an equation from the word problem,

Four subtracted from the product of 5 and a number is 51

Let's break it down:

--- product of 5 and a number can be written as,

[tex]\begin{gathered} 5\times x \\ =5x \end{gathered}[/tex]

--- four subtracted from "product of 5 and a number" can be written as,

[tex]5x-4[/tex]

^^ All this is equal to 51, so we can write,

[tex]5x-4=51[/tex]

To find the unknown number, we solve the above equation. The steps are shown below:

[tex]undefined[/tex]

The following expression gives an approximate value of the total average credit card debt in a U.S. household (in dollars)
t
years after 1995.

420
t
+
5750


Use this expression to predict what the total average credit card debt was or will be in the year 2006.

Answer: In the year 2006, the total average credit card debt for a U.S. household will be (or was)
dollars.

Answers

In the year 2006, the total average credit card debt for a U.S. household was 10370 dollars.

How to solve Exponential functions?

We are given the expression that gives an approximate value of the total average credit card debt in a U.S. household (in dollars), t years after 1995 as;

420t + 5750

where t represents number of years after the year 1995. Thus, for the year 2006, the value of t is;

t = 2006 - 1995

t = 11 years

Thus;

f(11) = 420(11) + 5750

f(11) = 10370 dollars

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what is the value of f(x)=2(0.75)^x when x=3

Answers

Answer: f(3) = 0.84375

Step-by-step explanation:

f(3) is asking for the value of the function when x = 3, not multiplying f by 3. (f(x) is basically the output, y)

So we just plug in 3 for x and simplify (use PEMDAS)

f(3) = 2(0.75)^3

f(3) = 2(0.421875)

f(3) = 0.84375

Answer:

[tex]\frac{27}{32}[/tex]

Step-by-step explanation:

It may be a bit easier to represent 0.75 as a fraction, since we can use the following property of exponents: [tex](\frac{a}{b})^x = \frac{a^x}{b^x}[/tex]

We can represent 0.75 as: [tex]\frac{3}{4}[/tex]

And substituting this into the function we get: [tex]f(x)=2(\frac{3}{4})^x[/tex]

calculating the value when x=3, we get: [tex]f(3)=2(\frac{3}{4})^3[/tex]

using the property previously stated we get: [tex]f(3)=2(\frac{3^3}{4^3})[/tex]

Raising each value to the exponent we get: [tex]f(3)=2(\frac{27}{64})[/tex]

When we multiply by two, we can simplify by splitting up 64, into two factors: 2 and 32, to get: [tex]\frac{2*27}{32*2}[/tex]

From here it's easy to see that we can cancel out the values 2, to get: [tex]\frac{27}{32}[/tex]

Which is our answer!

2(q + 4) = 10

Solve for q

Answers

Answer:

q=1

Step-by-step explanation:

2(q+4)=10

q+4=5

q=1

:]

Answer:

3

Step-by-step explanation:

2 x 3 6 4 10

Classify the four angles of the quadrilateral. С 750 B 1050 90° 90-

Answers

Anlges A and D are right angles becuase they measure 90

Angle C is Acute because it is smaller than 90

Angle B is Obtuse because it is grather than 90

A map of a park has no scale. The distance between the campground and the entrance station on the map is 2 inches. The actual distance between them is 8 miles. On the map, the distance between the campground and the lake is 12 inch.



What is the actual distance in miles between the campground and the lake?

Answers

The distance between the lake and campground  is 48 miles.

Given

The distance between the campground and the entrance is 2

The actual distance between them is 8 miles

Hence the scale is 2 for 8 miles

Also, Distance on the map between campground and lake is 12 inch.

Let us say actual distance is x

There fore we can form equation as

2x = 12x18

2x = 216

x=48

Hence the actual distance between campground and lake is 48 miles.

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he table shows the gallons of water in a pool over time. A two column table with six rows. The first column, Time in minutes, has the entries, 0, 1, 2, 3, 4, 5. The second column, Water in Pool in gallons, has the entries, 50, 44, 38, 32, 26, 20. Choose the term that describes the slope of the line of a graph representing the data in the table. The slope of a line graphed to represent the volume of water in a pool over time would be described as .

Answers

The slope of the line to represent the volume of water in a pool over time would described as -10

From the given table we have to choose points to find the slope of the line

The domain is defined as the set of possible inputs of the function.

The range is defined as the set of all possible outputs of the function.

The slope of the line is the change in y coordinate with respect to the change in y coordinates

Slope of the line m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

Where m is the slope of the line

[tex](x_{1} ,y_{1} )[/tex] and [tex](x_{2} ,y_{2} )[/tex] are the coordinates of the two points

We have to choose two points

The two points (2,44) and (4,26)

m = [tex]\frac{26-46}{4-2}[/tex]

m = -20/2

m = -10

Hence, the slope of the line to represent the volume of water in a pool over time would described as -10

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Use the rule for the order of operations to simplify: 8+6(6-2(5-4))

Answers

Given the expression below

[tex]8+6(6-2(5-4))[/tex]

Step 1: Using PEMDAS rule

P=> Parenthesis

E=>Exponent

M=>Multiplication

D=>Division

A=>Addition

S=> Subtraction

From the rule above, we will start our simplification with the parenthesis

Step 1: simplify (5-4)

[tex]\begin{gathered} 8+6(6-2(5-4) \\ 8+6(6-2(1)) \end{gathered}[/tex]

Step 2: Expand 2(1)=> 2x1, then simplify (6-2(1))

[tex]8+6(6-2(1))\Rightarrow8+6(6-2)\Rightarrow\cdot=8+6(4)[/tex]

Step 3: Expand 6(4)=>6 x 4

[tex]8+6(4)\Rightarrow8+6\times4\Rightarrow8+24[/tex]

Step 4: Add 8 and 24

[tex]8+24=32[/tex]

Hence, the final answer is 32

Answer: your answer would be 32

Step-by-step explanation:

using PEMDAS we would first go by parentheses and use the order by each step.

At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The statistician reported that the mean serve speed was 100 miles per hour (mph) and the standard deviation of the serve speeds was 15 mph. Assume that the statistician also gave us the information that the distribution of serve speeds was mound-shaped and symmetric. What percentage of the player's serves were between 115 mph and 145 mph?
A) approximately 16%
B) at most 34%
C) at most 2.5%
D) at most 13.5%

Answers

The percentage of players serves were between 115 mph and 145 mph is approximately 16%.

Given :

The statistician reported that the mean serve speed was 100 miles per hour

the standard deviation of the serve speeds was 15 mph

Assume that the statistician also gave us the information that the distribution of serve speeds was mound-shaped and symmetric

To find :

What percentage of the player's serves were between 115 mph and 145 mph?

Solution :

μ =100

σ = 15

P ( 115 < x <145)

= P ( [tex]\frac{115-100}{15}[/tex] <  x-μ /6 <[tex]\frac{145-100}{15}[/tex] )

= P ( [tex]\frac{15}{15}[/tex] < z < [tex]\frac{15}{15}[/tex] )

= p ( 1<z<3)

= p( z<3)-p(z-1)

=0.9987-0.8413

=0.1574

p ( 115<xx<145)= 15.74 %

p( 115<x<145)= approximately 16%

The percentage of players serves were between 115 mph and 145 mph is approximately 16%.

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The amount of water a bag of salt can treat is known in cubic feet.

Answers

Given:

There is a rectangular prism shape water tank given with 23yd 15yd anf 4yd measurements

Required:

A) We need to find the volume of tank in cubic ft

B) 18.8 cubic ft need 1 salt bag then we need to find to total needed salt bag

C) $4.65 per bag then find total cost

Explanation:

first pf all we need to convert given measures in feet from yd

[tex]\begin{gathered} 1yd=3ft \\ 23yd=69ft \\ 15yd=45ft \\ 4yd=12ft \end{gathered}[/tex]

A)

Volume

[tex]V=lwh=69*45*15=37260ft^3[/tex]

B)

18.8 cubic ft need 1 bag

then

37260 cubic ft need x

[tex]x=\frac{37260}{18.8}=1981.9\approx1982\text{ bags}[/tex]

C)

Cost for 1 bag is $4.65

then

cost for 1982 bags is y

[tex]y=1982*4.65=9216.3[/tex]

Final answer:

A) volume of tank in cubic ft is 37260

B) 18.8 cubic ft need 1 salt bag then we need total 1982 needed salt bags

C) $4.65 per bag then total cost is $9216.3

!!PLEASE HELP!!

Stefan is baking taquitos for a school fundraiser. The recipe calls for 2 1/2 cups of beans and 3 1/4 cups of rice. What is the ratio between cups of beans and cups of rice?

Answers

The ratio between cups of beans and cups of rice is 10/13 . Option C

What is ratio?

A ratio can described as an ordered pair of numbers, like y and z, that is written mathematically in the form y / z where the denominator of the fraction is not equal to zero.

It is known to describe the number of times an element or number contains another number proportionally.

It is also seen as the comparison of two quantities, elements or numbers that has the same units and likewise, explains how much one of the elements or quantity is found in the another one.

This is done based on their sizes or magnitudes.

A proportion is a mathematical equation with two ratios set equivalent or equal to each other.

Given that;

Beans = 2 1/ 2 cups

Rice = 3 1/4 cups

Convert to mixed fractions;

Beans = 5/2

Rice = 13/4

Now, divide the cups of beans by that of rice;

= 5/ 2 ÷ 13/4

= 5/2 × 4/13

= 10/13

Hence, the ratio is 10/13

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