(select all that apply)
1. Calculation errors when distributing 9h
2. Calculation errors when combining h^2 terms
3. Calculation errors when distributing -1
4. Calculation errors when distributing h^2
5. Calculation errors when combining h terms

(select All That Apply)1. Calculation Errors When Distributing 9h2. Calculation Errors When Combining

Answers

Answer 1

The simplification of the expression (h² + 9·h - 1) × (-4·h + 3), involves the

multiplication of the terms. The error is therefore;

3. Calculating errors when distributing -1

How can the error in the calculation be found?

The expansion of (h² + 9·h - 1) × (-4·h + 3), is given as follows;

(h² + 9·h - 1) × (-4·h + 3) = -4·h³ + 3·h² - 36·h² + 27·h + 4·h - 3

Which gives;

-4·h³ - 33·h² + 31·h - 3

The calculation is therefore;

[tex]\begin{array}{|c|c|c|c|}&h^2&+9 \cdot h & -1\\-4 \cdot h&-4\cdot h^3&-36\cdot h^2 &4 \cdot h\\+3& 3 \cdot h^2&27 \cdot h&3\end{array}\right][/tex]

The error is therefore, in the distribution of the -1

The correct option is;

3. Calculating errors when distributing -1

Learn more about expansion of polynomial expressions here:

https://brainly.com/question/17255629


Related Questions

Find the value of x then classify the triangle

Answers

All the angles of a triangle must add up to 180°

Therefore 45°+44°+x=180°

You can re-write that equation as:

x= 180°- 44° -45°

x= 91°

The triangle is an obtuse triangle because one of its angles is bigger than 90°

What is the value of sec 65 (degrees)? I cannot understand how to input this into my calculator any help is much appreciated!!

Answers

Answer:

SEC 65 DEGREES= 2.366

Step-by-step explanation:

JUST USE SEC OF 65, MAKE SURE YOU SELECT DEGRES FOR AN ANSWER

Sarah lives 3 9/10 miles from school. Her classmate, Roger, lives 1 mile from school. How much farther from school does Sarah live?

Answers

Answer:

2 9/10

Step-by-step explanation:

subtract the 1 mile from the 3 9/10 mile. kinda like 3-1 but then you put the other stuff on the end (9/10)

I'm pretty sure this is the correct answer

help please i need help

Answers

Answer:

y = 500(1.10)^4

Step-by-step explanation:

We put the 1 in 1.10 instead of 0.10, because we're trying to find 10% of $500, added to the $500 itself. 1 is the same as 100%. 100% here is $500. So by doing 1.10, we're finding 110% or $500 + 10% of $500.

Hope this makes sense :))

can someone help me with this question please.

Answers

Answer:

b

Step-by-step explanation:

*View attached graph*

solve please !!!!!!!!

Answers

Assuming that this is a parallelogram, that means the angle opposite each other like Angle L to Angle J and Angle K to Angle M are equal in angle measure.

Thus Angle L is 98 degrees like Angle J

Hope that helps!

3. Find the area.
I don’t know how to solve this

Answers

Answer:

50.24 cm^2

Step-by-step explanation:

r=4, so the answer is 16π. replacing π with 3.14 to get 50.24 cm^2

(will mark brainliest to whoever responds!) PLEASE HELP ME OUT :)

Answers

Answer:

hi

Step-by-step explanation:

A supermarket finds that the number of boxes of a new cereal sold increases each week. In the first week, only 20 boxes of the cereal
were sold. In the next week, 53 boxes of the cereal were sold and in the third week 86 boxes of 86 the cereal were sold. The number of
boxes of cereal sold each week represents an arithmetic sequence.
What is the explicit rule for the arithmetic sequence that defines the number of boxes of cereal sold in week n?

Answers

Answer:

an=33n-13

Step-by-step explanation:

86-53=33

53-20=33

That's where 33n comes from

-13 comes from

20-33=-13

Hope this helps! :)

1. How many 1 halves are in 2? 2. How many 1 fifths are in 3? 3. How many 1 eigths are in 1 and 1 fourth

Answers

Answer:

2; 3; 10

Step-by-step explanation:

1.) There are 4 halves (1/2) in 2; 4/2 = 2

2.) There are 15 1 fifths (1/5) in 3; 15/5 = 3

3.) There are 10 1 eights (1/8) in 1 and 1 fourth; 1.25/0.125 = 10

I have a question which stubs my toe could someone solve this for me so I understand how to get the domain and range.

Let f be a function defined on [−1,3] such that f (n) = 2n - 1

- Plot the graph of f
- What is this function’s domain and range?

Answers

Step-by-step explanation:

Domain tells us all the possible x values or inputs of a function.

Here the input is n.

The domain here is defined on the interval [-1,3) so the domain can be notated in 3 ways.

Interval Notation: [-1,3]

Words: All inputs that is between -1 and 3, exclusively.

Sign Notation:

[tex] - 1 \leqslant x \leqslant 3[/tex]

The Range of a function is possible y values or outputs of a function.

For the range, plug in x values to find the y values.

Since the range in this problem, is only defined for -1 to 3. Plug in -1 for n in the function.

[tex]2( - 1) - 1 = - 3[/tex]

[tex]2(3) - 1 = 5[/tex]

So the range of is

[-3,5]

Or could be stated

All outputs between -3 and 5 exclusively

[tex] - 3 \leqslant x \leqslant 5[/tex]

Here's a graph. Look Above

60-minute television program 25%of the Time is used for commercials and 5%credits

Answers

Eighteen minutes of not show 42 minutes total show time

what negative number is the same distance from 0 as the number +4

Answers

Answer:

-4

Step-by-step explanation:

They would be the same distance considering 0 is your midpoint.

Add the polynomials.(8x2-7x+7)+(8x3-5x)

Answers

Answer:

8x^3+8x^2-12x+7

Answer:

8x³ + 8x² - 12x + 7

Step-by-step explanation:

(8x² - 7x + 7) + (8x³ - 5x)

8x² - 7x + 7 + 8x³ - 5x

8x³ + 8x² - 12x + 7

I hope this helps!

What effect did Geometry bring to the world/humans? Explain your answer in 3-5 sentences.

Answers

Answer:

Geometry has influenced how civilizations have constructed buildings and stadiums. In Ancient Greece, the “golden rectangle” was used to build aesthetically pleasing buildings that look to be in perfect proportion. It helps in the accurate calculation of the physical distances. It is employed in the field of astronomy to map the distances between stars & planets and between different planets. It also aids in the determination of a relationship between the movements of different bodies in the celestial environment.

Step-by-step explanation:

Pls, choose me as brainliest!

3 sin ^2 x - 3 sin ^4 x =0

Answers

I assume you're just solving for x. Factorize the left side as

3 sin²(x) - 3 sin⁴(x) = 3 sin²(x) (1 - sin²(x)) = 0

Recall that

sin²(x) + cos²(x) = 1

so that the equation further reduces to

3 sin²(x) cos²(x) = 0

Also recall the double angle identity,

sin(2x) = 2 sin(x) cos(x)

which lets us rewrite the equation as

3/2² (2 sin(x) cos(x))² = 3/4 sin²(2x) = 0

Solve for x :

3/4 sin²(2x) = 0

sin²(2x) = 0

sin(2x) = 0

2x = arcsin(0) + 2nπ   or   2x = π - arcsin(0) + 2nπ

(where n is any integer)

2x = 2nπ   or   2x = (2n + 1) π

x = nπ   or   x = (2n + 1)/2 π

Notice that this means the solution set is

{…, -2π, -3π/2, -π, -π/2, 0, π/2, π, 3π/2, 3π, …}

so we can condense the solution further to

x = nπ/2

with any integer n.

In the diagram, △NPQ ∼ △NLM and PL = 8.

Answers

Answer:

60=3x+27(The corresponding elements of the angular triangles are similar.)

60-27=3x

33=3x

33/3=3x/3

11=x

x=11

The area of a rectangle is 506 square metre. If its length is 23 metre, then find its breadth?

Answers

Answer:

The area of a triangle can be determined with the two side lengths, the length and breadth/width multiplied.

x = unknown value of breadth/width

23 = length

506 = the area of the two lengths multiplied

23(x) = 506

/23        /23

x = 22, 22 metres is it's breadth.

Answer:

22m is the breadth of the rectangle.

Step-by-step explanation:

Given:

Area of Rectangle is 506 . Length of the Rectangle is 23m.

[tex] \: [/tex]

To Find:

Breadth of the rectangle.

[tex] \: [/tex]

Solution:

As, we know,

[tex]{ \boxed{ \pink{Area _{(rectangle)} \: = length \times breadth}}}[/tex]

➝ 506m² = l × b

➝ 506m² = 23 × b

➝ b = 506/23 = 22

Hence, Breadth of the Rectangle is 22m.

[tex] \: [/tex]

Check:

Area = length × breadth

➝ 23 × 22

➝ 506m²

______________________

[tex]{ \sf{Additional \: Information}}[/tex]

[tex]\boxed{\begin {array}{cc}\\ \dag\quad \Large\underline{\bf{ \green{ Formulas\:of\:Areas:-}}}\\ \\ \star\sf Square=(side)^2\\ \\ \star\sf Rectangle=Length\times Breadth \\\\ \star\sf Triangle=\dfrac{1}{2}\times Base\times Height \\\\ \star \sf Scalene\triangle=\sqrt {s (s-a)(s-b)(s-c)}\\ \\ \star \sf Rhombus =\dfrac {1}{2}\times d_1\times d_2 \\\\ \star\sf Rhombus =\:\dfrac {1}{2}d\sqrt {4a^2-d^2}\\ \\ \star\sf Parallelogram =Base\times Height\\\\ \star\sf Trapezium =\dfrac {1}{2}(a+b)\times Height \\ \\ \star\sf Equilateral\:Triangle=\dfrac {\sqrt{3}}{4}(side)^2\end {array}}[/tex]

Please help!
I need it like ASAP!!
Thank you so much though

Answers

Answer:your answer would be
cStep-by-step
explanation: Answer : D

Express cos F as a fraction in simplest terms.
F
15
E
28
D

Answers

Answer:

cos F is 15/28

Step-by-step explanation:

Use SOH CAH TOA

CAH is for cosine and it's Adjacent over Hypotenuse

the adjacent side of F is 15 and the hypotenuse is 28

So 15/28 which does not simplify

Hope this helped! :)

The times of all 15 year olds who run a certain race are approximately normally distributed with a given mean Mu = 18 sec and standard deviation Sigma = 1. 2 sec. What percentage of the runners have times less than 14. 4 sec? 0. 15% 0. 30% 0. 60% 2. 50%.

Answers

The percentage of runners having times less than 14.4 sec is 0.15%. Then the correct option is A.

What is normal a distribution?

It is also called the Gaussian Distribution. It is the most important continuous probability distribution. The curve looks like a bell, so it is also called a bell curve.

The times of all 15-year-olds who run a certain race are approximately normally distributed with a given mean (μ) = 18 sec and standard deviation (σ) = 1.2 sec.

The runners have times less than 14.4 sec.

The z-score is a numerical measurement used in statistics of the value's relationship to the mean of a group of values, measured in terms of standards from the mean.

[tex]\rm z-score = \dfrac{X - \mu}{\sigma }\\\\z-score = \dfrac{14.4- 18}{1.2}\\\\z-score = -3[/tex]

Then the Percentage will be

[tex]\rm P(X < 14.4) = P(z < -3) = 0.0013499 = 0.13499\ \% \approx 0.15\ \%[/tex]

More about the normal distribution link is given below.

https://brainly.com/question/12421652

I need help it's due in 2 hours I'm confused on the last question. I mainly need help with knowing what to do with y=-1​

Answers

Answer: I am not sure exactly what you need as there is no context

-> See attached for graph

-> They intersect at point (2, -1)

Step-by-step explanation:

     To answer your question of "I mainly need help with knowing what to do with y=-1​" you will graph it as you do with y = - [tex]\frac{5}{2}[/tex]x + 4.

     Any y = something equation will be a horizontal line. There is no slope, the "mx" chunk, so the line stays straight. You will put a dot at (0, -1) and draw a line straight from that point.

     For y = - [tex]\frac{5}{2}[/tex]x + 4, place a dot at (0, 4) and then count down 5 units and 2 units to the right to place another dot. Then draw a line through these two dots and extend it beyond to create the line.

Step-by-step explanation:

Hope this is helpful

y=-1 is nothing but it's the y value by using that we have to find the x value

The table shows the number of flowers in four bouquets and the total cost of each bouquet. A 2-column table with 4 rows. The first column is labeled number of flowers in the bouquet with entries 8, 12, 6, 20. The second column is labeled total cost (in dollars) with entries 12, 40, 15, 20. What is the correlation coefficient for the data in the table? –0. 57 –0. 28 0. 28 0. 57.

Answers

The correlation coefficient for the data in the given table is 0.28.

What is the correlation coefficient?

Correlation coefficients are used to measure how strong a relationship is between two variables.

Number of flowers X   Total cost(in$) Y

          8                          12

          12                        40

          6                          15

         20                        20

       ∑X=46                  ∑X=87

The image of the correlation coefficient formula has been attached.

X mean = 11.5

Y mean = 21.75

Using the attached formula

Correlation coefficient r = 0.28

Therefore, the correlation coefficient for the data in the given table is 0.28.

To get more about correlation coefficient visit:

https://brainly.com/question/10714306

Lexi did 4/10 of her homework after school she played outside for 30 minutes she then did 3/10 more of her homework what decimal shows the amount of homework Lexi has finished

Answers

Answer:

0.7

Step-by-step explanation:

4/10 + 3/10 = 7/10

7/10 as a decimal is 0.7

Answer: 0.7

does anyone know this (-13w^2+13)-(-2w^2)
Plato answer

Answers

Answer:

-11w^2+13

Step-by-step explanation:

(-13w^2+13)-(-2w^2)

Distribute the minus sign

-13w^2+13+2w^2

Combine like terms

-13w^2+2w^2+13

-11w^2+13

Isabella and her cousin Rodrigo have the same birthday, but Isabella is 15 years
older than Rodrigo. The equation y = x + 15 represents Isabella's age, y, when
Rodrigo is x years old. Which table of values shows this relationship?
X
0
15
1
16
2
17
3
18
у
Х
у
0
16
1
17
2
18
3
19
Х
у
0
0
1
15
2
30
3
45
х
у
0
15
1
30
2
45
3
60

Answers

Answer:

The first graph

Step-by-step explanation:

*View attached graph*

Hope this helps!

A rectangle is 18 inches long and 12 inches wide.

What is the perimeter of this rectangle?

Answers

Answer:

60 inches

Step-by-step explanation:

perimeter =2×l+2×w

=2×18+2×12

=36+24

=60

∴The perimeter=60 inches.

hope it is correct!!!!

brainliest to best answer

Answers

Step-by-step explanation:

geometric sequence means that every term is created by multiplying the previous term by a constant factor.

we can see the constant factor directly, I am sure, but let's do it formally correct :

-1/8 × f = -1/4

f = -1/4 / -1/8 = -1/4 × -8/1 = -8/-4 = 2

so, yes, every new term of the sequence is created by multiplying the previous term by 2.

a0 = -1/8

a1 = a0 × 2 = -1/8 × 2 = -2/8 = -1/4

a2 = a1 × 2 = a0 × 2×2 = -1/8 × 2×2 = -1/8 × 4 = -4/8 = -1/2

...

an = a0 × 2^n = -1/8 × 2^n

a6 = -1/8 × 2⁶ = -1/8 × 64 = -8

so, the only questing is, where does your teacher start the count for such a geometric sequence ?

do you call the first term a0 or a1 ?

my solution above starts with a0.

but if it should start with a1, then we need to reduce the exponents of 2 by 1 :

an = -1/8 × 2^(n-1)

and a6 would be

a6 = -1/8 × 2⁵ = -1/8 × 32 = -4

What is the median of this data set? {16, 16, 16, 19, 20, 22, 23, 24, 24} Enter your answer in the box.

Answers

[tex][Hello,BrainlyUser][/tex]

Answer:

20

Step-by-step explanation:

To Find the Median do the following below;

Arrange data values from lowest to highest valueThe median is the data value in the middle of the setIf there are 2 data values in the middle the median is the mean of those 2 values.The median is the data value separating the upper half of a data set from the lower half.

16, 16, 16, 19, 20, 22, 23, 24, 24

16, 16, 16, 19, 20, 22, 23, 24, 24

16, 16, 16, 19, 20, 22, 23, 24, 24

16, 16, 16, 19, 20, 22, 23, 24, 24

Thus, Median is 20.

[CloudBreeze]

Answer:

20 no explanation

Which values are outliers? 6. 1, 3. 9, 6. 4, 10. 6, 4. 4, 4. 5, 1. 6, 11. 2, 0. 8, 3. 9, 6. 5 Select Outlier or Not Outlier for each data point. Data Outlier Not Outlier 0. 8 Outlier – 0. 8 Not Outlier – 0. 8 1. 6 Outlier – 1. 6 Not Outlier – 1. 6 10. 6 Outlier – 10. 6 Not Outlier – 10. 6 11. 2 Outlier – 11. 2 Not Outlier – 11. 2.

Answers

Answer:

10 and 11

Step-by-step explanation:

An outlier is a number that is much larger or smaller than the general populous of numbers. For example, if there was a dot plot with dots clustered at 2, 3, and 5, but there was one or two dots around 10, then 10 would be considered an outlier.Let's put the numbers in order to see easier which numbers are outliers. I will not copy down repeating numbers.0, 1, 2, 3, 4, 5, 6, 10, 11.10 and 11 are isolated.

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.

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