Fiona wrote out the description of each step for her multiplication of the binomial and trinomial (2x – 3)(5x2 – 2x + 7). A table titled Fiona's Product with 2 columns and five rows. The first column is labeled steps with 4 steps shown. The second column is labeled result and shows 5 result expressions. In which step did Fiona make an error? Step 1 Step 2 Step 3 Step 4

Answers

Answer 1

Answer:

b

Step-by-step explanation:

Answer 2

Friona made an error in the second step that is step 2.

What error did she make in writing her step.?

The descriptions of each step are given the multiplications of the bionomical and the trinomial i.e (2x – 3)(5x2 – 2x + 7). The titled Fiona's product has the 2 columns and the 5 rows. The first Colum is labeled as with 4 steps The second Colum is labeled as a result and the fifth is expression.

Using the distributive property and multiplying by -3 times each term of the trinomial. Thus, -3(5x^2 - 2x + 7) = -15x^2 + 6x - 21 Fiona written -6x instead of + 6x. This is the error. Hence the answer is "Step 2"

Find out more information about the description of each.

brainly.com/question/14249120.


Related Questions

Which weighs more: 16 oz. of soda or a solid pound of gold?

Answers

Answer:

Gold weighs more

Step-by-step explanation:

The fact that they both equal 16 oz confirms the fact that gold weighs more. The reason for this is because even if the mass is the same the weight involves the gravitational pull on the earth meaning gold is greater.

1 pound of gold weighs more than 16 ounces of Soda.

We are told that;

Weight of soda = 16 Oz (ounces)

Weight of gold = 1 pound

Now, from conversions between pounds and ounces, 1 pound = 16 oz

Thus means that soda too also has a mass of 1 pound same as Gold.

However, despite the fact that they have the same mass, it doesn't mean they weigh the same because Gold has a gravitational pull which means force of gravity on it from the earth and it means it will weigh more.

Read more at; brainly.in/question/25346071

Which of the following is equal to 57%?
O A. 35
O B. 53
5.3
D. 15

Answers

The answer is letter B

You have 24 homework problems for math class. You finish of them during some
extra time in class. If you complete 4 more problems while waiting for the bus, what
fraction of the 24 problems will remain?
دو آدم
8
24

Answers

Answer:

Step-by-step explanation:

If you were to complete 4 out of the 24 current homework problems, then I can say that you'd have 5/6 of the problems remaining. This is because 24 divided by 4 is 6, so completing 4 questions counts as completing 1/5 of the total amount of work present. If you want to use whole numbers instead of fractions, you would have completed 4 out of 24 questions and would have 20 remaining

3m = -18

please help!!!

Answers

Answer:

m = -6

Step-by-step explanation:

3m = -18 (Divide both sides by 3)

3m/3 = -18/3

m = -6

Answer:

m=-6

Step-by-step explanation:

3m=-18

Divide by 3 on each side.

3m/3=-18/3

m=-6

Draw an angle and then draw the opposite ray to one of its sides, to form a linear pair. Find the measure of the angle formed by the angle bisector of the original angle and the opposite ray if the original angle measures 50°, 90°, and 150°. 1. If the angle equals 50°, then the measurement of the required angle is ? 2. If the angle equals 90°, then the measurement of the required angle is ? 3. If the angle equals 150°, then the measurement of the required angle is ?

Answers

Answer:

(1)155 degrees

(2)135 degrees

(3)105 degrees

Step-by-step explanation:

Let the original angle [tex]= \theta[/tex]

Angle Bisector of the original angle = [tex]\dfrac{ \theta}{2}[/tex]

If the other angle forms a linear pair, then:

The other angle, [tex]\beta=180^\circ-\theta[/tex]

Therefore, the measure of the angle formed by the angle bisector of the original angle and the opposite ray is:

[tex]\dfrac{ \theta}{2}+180^\circ-\theta\\=180^\circ-\dfrac{ \theta}{2}[/tex]

(1)If the angle equals 50°

Then the measurement of the required angle

[tex]=180^\circ-\dfrac{ 50}{2}\\=180^\circ-25^\circ\\=155^\circ[/tex]

(2)If the angle equals 90°

Then the measurement of the required angle

[tex]=180^\circ-\dfrac{ 90}{2}\\=180^\circ-45^\circ\\=135^\circ[/tex]

{3)If the angle equals 150°

Then the measurement of the required angle

[tex]=180^\circ-\dfrac{ 150}{2}\\=180^\circ-75^\circ\\=105^\circ[/tex]

See attachment for an example of the graphical solution.

The value of y when x=7

Answers

Answer:

y = 49

Step-by-step explanation:

y ∝ x²

=> y = kx²

Where k is the constant of proportionality

k = 1 (We've found this out in the previous question)

Now,

y = ? when x = 7

The above equation becomes:

=> y = (1)(7)²

=> y = (1)(49)

=> y = 49

A coordinate grid with 2 lines. One line, labeled f(x) passing through (negative 3, 3), (0, 3), and the point (4, 3). The other line is labeled g(x) and passes through (negative 4, negative 3), (0, 0), and the point (4, 3). Which input value produces the same output value for the two functions on the graph? x = −1 x = 0 x = 3 x = 4

Answers

Answer:

x = 4

Step-by-step explanation:

It is stated that f(x) passes through

(-3, 3), (0, 3), (4, 3)

and g(x) passes through

(-4, -3), (0, 0), (4, 3)

Therefore, both functions pass through (4, 3). That is, the input value x = 4 produces the same output value y = 3 for the two functions.

Answer:

d x =4

Step-by-step explanation:

Someone please help

Answers

Answer:

A

Step-by-step explanation:

2 cubes horizontal,  3 cubes (down) vertical,  2 cubes horizontal.

5x−3−7x = 15−x What is x?

Answers

Simplify 5x-3-7 to -2x-3
-2x-3=15-x
Add 2x on both sides
−3=15−x+2x
Simplify 15-x+2x to 15+x
−3=15+x
Subtract 15 on both sides
-3-15=x
Simplify -3-15 to -18
-18=x
X=-18

Answer:

x = -18

Step-by-step explanation:

[tex]5x - 3 - 7x = 15 - x \\ collect \: like \: terms \: \\ 5x - 7x + x = 15 + 3 \\ - x = 18[/tex]

[tex] \frac{ - x}{ - 1} = \frac{18}{ - 1} \\ x = - 18[/tex]

If (NN)^3 = 8518N, what digit does N represent?

(A) 1

(B) 2

(C) 4

(D) 5

(E) 6

Answers

Answer:

(C) 4

Step-by-step explanation:

I am going to solve this by trial and error:

(A) 1

Is: [tex](11)^{3} = 85181[/tex]?

[tex](11)^3 = 1331[/tex]

So 1 is not the digit of N.

(B) 2

Is: [tex](22)^{3} = 85182[/tex]?

[tex]22^3 = 10648[/tex]

So 2 is not the digit of N.

(C) 4

Is: [tex](44)^{3} = 85184[/tex]?

[tex]44^3 = 85184[/tex]

Correct, so the answer is c.

(D) 5

[tex]55^3 = 166375 \neq 85185[/tex]

(E) 6

[tex]66^3 = 287496 \neq 85186[/tex]

About 3% of the population has a particular genetic mutation. 600 people are randomly selected.

Find the standard deviation for the number of people with the genetic mutation in such groups of 600. Round your answer to three decimal places

Answers

Answer:

Standard deviation  for the number of people with the genetic mutation = 4.178

Step-by-step explanation:

Explanation:-

Given random sample size 'n' =600

proportion of the Population 'p'=3% or  0.03

Let 'X' be the random variable in binomial distribution

Mean of the  binomial distribution

                              μ = n p

                                 = 600 X 0.03

                                = 18

Mean of the  binomial distribution ' μ ' =18

Standard deviation of the binomial distribution

                                σ = [tex]\sqrt{npq} = \sqrt{600 X 0.03 X 0.97} = \sqrt{17.46} = 4.178[/tex]

Conclusion:-

Standard deviation  for the number of people with the genetic mutation = 4.178

Complete the tasks to subtract the polynomials
vertically.
(1.32 +0.412 – 241) – (0.612 + 8 - 181)
What is the additive inverse of the polynomial
being subtracted?
-0.612 + (-8) + (-181)
-0.612 + (-8) + 18+
-0.612 + 8 - 181
0.612 + (-8) + 181
DONE

Answers

Answer:

The additive inverse of the polynomial  being subtracted is -0.612-8+181

Step-by-step explanation:

Given expression : (1.32 +0.412 – 241) – (0.612 + 8 - 181)

Now the polynomial being subtracted : (0.612 + 8 - 181)

Additive inverse : The number in the set of real numbers that when added to a given number will give zero.

So, Additive inverse of 0.612 = -0.612

Additive inverse of 8 = -8

Additive inverse of -181 = 181

So, The additive inverse of polynomial being subtracted : -0.612-8+181

So, Option B is true

Hence the additive inverse of the polynomial  being subtracted is -0.612-8+181

In 2010, Rafik bought a house. In 2015, Rafik sold the house to Bianca. He made a 20% profit on the sale. In 2019, Bianca sold the house for £193800. She made a 5% loss. Work out how much Rafik paid for the house in 2010.

Answers

Answer:

£170000

Step-by-step explanation:

In 2010, Rafik bought a house. Let us assume Rafik bought the house for $x.  In 2015, Rafik sold the house to Bianca and made 20% profit. 20% profit = 20% of x = 0.2 × x = 0.2x. Therefore Rafik sold the house to Bianca at x + 0.2x = 1.2x. Bianca bought the house at 1.2x

The house was sold by Bianca at 5% loss in 2019. 5% loss = 0.05(1.2x) = 0.06x

Therefore the house was sold by Bianca at 1.2x - 0.06x = 1.14x. Since Bianca sold the house at £193800.

⇒ 1.14x = 193800

x = 193800/1.14

x = £170000

Rafik paid £170000 for the house in 2010

What is the 8th term in the binomial expansion of (2x+1)^9?

Answers

Answer:

512 x 9 − 2304 x 8 + 4608 x 7 − 5376 x 6 + 4032 x 5 − 2016 x 4 + 672x 3 − 144 x 2 + 18 x − 1

Step-by-step explanation:

PLEASE HELP ME ILL MARK AS BRAINLIEST

Answers

Answer:

I think that you would divide all the euros by 1.35 to get the pounds

if thats right then the answer should be £2504.07407408

Step-by-step explanation:

i did this by first getting the hotel price (125 euros per night) and timesing that by 14 as they stay for 14 nights, this gives you 1750

then i converted 1750 to pounds by dividing 1750 by 1.35 to get £1296.2962963

next i did the wifi price (6 x 13 = 78, 78 divided by 1.35 = £57.7777777778)

after that i added those two prices together to get £1354.07407408

the final step was to add £1150 so i got £2504.07407408, and that hopefully should be the answer !

hope this works :)

(3x^2+2-x^3) - (-5x^3+2x^2+1) Express the answer in standard form. Enter your answer in the box.

Answers

Answer:

3x³ + x² - 1

Step-by-step explanation:

Step 1: Rewrite expressions

(3x² - 2x³) - (-5x³ + 2x² +1)

Step 2: Distribute negative

3x² - 2x³ + 5x³ - 2x² - 1

Step 3: Combine like terms

3x³ + x² -1

Answer:

[tex]4 {x}^{3} + {x}^{2} + 1[/tex]

solution,

[tex]3 {x}^{2} + 2 - {x}^{3} - ( - 5 {x}^{3} + 2 {x}^{2} + 1) \\ = 3 {x}^{2} + 2 - {x}^{3} + 5 {x}^{3} - 2 {x}^{2} - 1 \\ = 3 {x}^{2} - {2x}^{2} + 2 - 1 - {x}^{3} + 5 {x}^{3} \\ = {x}^{2} + 1 + 4 {x}^{3} \\ = 4 {x}^{3} + {x}^{2} + 1[/tex]

Hope this helps...

Good luck on your assignment..

What is four hundred twenty-eight and forty-six hundredths written in standard form? 5th grade

Answers

428.46

400+28+.46= 428.46

Trust me if you remember what hundredths and tenths mean it will help a lot in 6-7th grade math.

Solve. Draw to show your answer. Picture above

Answers

Answer: Barry

Explanation:

Barry ate 1/2 and Marcy ate 1/4. 1/2>1/4. Therefore, Barry ate more cheese

Answer:

Barry ate the most cheese.

He ate

[tex]1/2[/tex]

While Marcy ate

[tex]1/4[/tex]

[tex]1/2 >1/4[/tex]

This shows that 1/2 is greater than 1/4

So, Barry ate the most cheese

an arithmetic sequence has this recursive formula:

Answers

Answer:

Option D is the correct option.

please see the attached picture for full solution..

Hope it helps...

Good luck on your assignment...


Type the correct answer in the box. Use numerals instead of words.
A car is traveling in a straight line at a speed of 55 miles per hour. How fast is the cart
1 minute = 3,600 seconds
1 mile = 5,280 feet
Express the answer to the correct number of significant figures.
The car is _____traveling
feet per second.

Answers

Answer:

1.34 feet/seconds

Step-by-step explanation:

Looking at the above question, we would be converting 55 miles per hour to feet per seconds.

From the above question, we are given the following conversion values

1 minute = 3,600 seconds

1 mile = 5,280 feet

55 miles per hour = 55 mile / 1 hour

So,

If 1 mile = 5,280 feet

55 miles = x feet

We cross Multiply

x = 5,280 × 55

x = 290,400 feet

Hence, 55 miles = 290,400 feet

1 hour = 60 minutes

If 1 minute = 3,600 seconds

60 minutes = x seconds

We cross multiply

x = 60 × 3,600

x = 216,000 seconds.

This means

60 minutes = 216,000 seconds

In other to find out how fast is the car is,

Speed = Distance / Time

Speed = 290,400 feet/216,000 seconds

Speed = 1.3444444444 feet/seconds

To the to the correct number of significant figures, the car is traveling at 1.34 feet per second.

Fred is going to take a flight from Miami, Florida, to San Francisco, California.
The flight leaves Miami at 9:15 a.m. Miami time and arrives in San Francisco
at 1:20 p.m. San Francisco time. If Miami is in the eastern time zone and San
Francisco is in the Pacific time zone, how long is the flight?
Use the following to help you answer the question.
12:00 p.m. eastern time = 11:00 a.m. central time = 10:00 a.m. mountain
time = 9:00 a.m. Pacific time.
A. 4 h 15 min
B. 5 h 15 min
C. 3 h 15 min
D. 7 h 15 min

Answers

Answer:

D. 7 h 15 min

Step-by-step explanation:

1. Convert 9:15 a.m. Eastern Time to Pacific Time. As you can see by the information given, Eastern Time is 3 hours ahead of Pacific Time. So, 9:15 a.m. Eastern Time is 6:15 a.m. Pacific Time.

2. Find the difference between 1:20 p.m. and 6:15 a.m.

1:20 p.m. = 13:20 p.m.

 13:20

-   6:15

______

   7:15

Math I NEED HELP LOOK AT THE IMAGE ALGEBRA IS KILLING ME

Answers

Answer:

22.5

Step-by-step explanation:

Since 13.5 is 60% of something, the opposite operation would be to divide 13.5 by 60% (or 0.6). You can check this by finding 60% of 22.5:

13.5 / 0.6 = 22.5

22.5 x 0.6 = 13.5

Answer:

In the problem, 60% of 22.5 is 13.5.

Step-by-step explanation:

The first thing we have to do is know what the problem is asking us to find. In the problem, we are asked to find the number that 13.5 is 60% of. In order to find this number, we have to divide. We are going to divide 13.5 by 60%. 60% can be turned into decimal form which is 0.6.

13.5 ÷ 0.6 = 22.5

So, the number that 13.5 is 60% of is 22.5.

Which conversion requires multiplication? A deciliter- liter B liter- kiloliter C kiloliter- liter D milliliter - centiliter

Answers

Answer:C

Step-by-step explanation: because multiplication is only follow when you convert greater unit to smaller unit which in this case is kilolitres to liters

PLEASE MARK ME AS BRAINLIEST

Answer:

C

Step-by-step explanation:

So the other person can be brainleist

Evaluate e4 to one decimal place.

Answers

Answer:

54.6

Step-by-step explanation:

When we plug e^4 into the calc, we get 54.5982, which we round to get our final answer.

What is the first step in solving the quadratic equation x2 = 2?
16
Take the square root of both sides of the equation,
Add to both sides of the equation,
Square both sides of the equation,
Subtract 1 from both sides of the equation,

PLEASE HURRY

Answers

Answer:

take square root of both sides

Step-by-step explanation:

you want to isolate x.

Raj takes a taxi to the airport. He expects the taxi to travel at an average speed of 60 mph. The distance from Raj's house to the airport is 30 miles. If Raj's taxi actually travels at an average speed of 50 mph, how many more minutes does the journey take than expected?

Answers

Answer:

6 minutes more

Step-by-step explanation:

Time = Distance ÷ Speed

Time = 30miles ÷ 60mph

Time = 30mins

Time = 30miles ÷ 50mph

Time = 36mins

36mins - 30mins = 6mins difference

Answer: 6 minutes

Step-by-step explanation:

Time = Distance / speed

When speed is 60 mph

Time = 30/60 = 1/2 hour = 30 minutes

When speed is 50 mph

Time = 30/50 = 3/5 hour = 36 minutes

salt water has a density of 1030 kg/m^3. a piece of wood with mass of 1260 g is a cuboid with dimensions 7 cm x 10 cm x 15 cm.Will it float in water? a) Work out the volume of the wood b) Work out the density of the wood

Answers

Answer:

No, the piece of Wood will not follow.

a) Volume = 0.00105 m³

b) Density of Wood = 1200 kg/m³

Step-by-step explanation:

For the piece of wood to float on salt water, the density of the wood should be less than 1030kg/m³

First we'll calculate the volume of the piece of wood, which later we'll use to find the density.

a) Volume of Wood

Volume is given by 7 cm × 10 cm × 15 cm

Convert all the values into meters.

7 cm = 7/100 = 0.07 m

10 cm = 10/100 = 0.10 m

15 cm = 15/100 = 0.15 m

Calculate Volume:

Volume = 0.07 m × 0.1 m × 0.15 m

Volume = 0.00105 m³

b) Density of Wood

Formula for density is given by

Density = Mass / Volume

Where

Volume = 0.00105 m³

Mass =  1260 g = 1260/100 = 1.260 kg

Density = 1.260 kg/0.00105 m³

Density of Wood = 1200 kg/m³

As Density of Wood ≥ Density of Salt water , the piece of Wood will not float.

What is 39,182 written in expanded form

Answers

Answer:

39,182 in expanded form:

Step-by-step explanation:

30,000 + 9,000 + 100 + 80 + 2

What is the 48th term of the arithmetic sequence with this explicit formula?
an=-11 + (n - 1)(-3)
O A. -155
B. -141
C. -133
D. -152
SUBMIT

Answers

Answer:

D

Step-by-step explanation:

Put n as 48 and solve.

-11 + (48 - 1)(-3)

- 11 + (47)(-3) = -152

I NEED HELP NOW ASAP

Answers

Answer:

5 options : 2 correct options

: 3 wrong options

first answer : 2/5

second answer : 1/5-1

: 1/4

p( choosing correct answer)

= 2/5 × 1/4

= 1/10

Answer:

0.10

Step-by-step explanation:

hello,

there are 5 answers and 2 are correct

I choose a first answer - the probability to be a correct one is 2/5

then now, there are 4 left answers and only 1 left is correct

the probability to choose the correct one is 1/4

so in total the probability to choose the 2 correct answers out of 5 is

[tex]\dfrac{2}{5}*\dfrac{1}{4}=\dfrac{1}{10}[/tex]

which is 0.10

hope this helps

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