Louise completed the work shown below.

(5x3 + 3)2 = (5x3)2 + (3)2 = 25x6 + 9
Determine if Louise’s answer is correct. Explain.

Answers

Answer 1
No, Louise is incorrect because using the order of pemdas I know that (5x3+3)2 is 36. I also know that (5x3)2+(3)2 is 36 using the order of pemdas. However the 3rd problem is 25x6+9 and using pemdas I know that this would equal 234 which is not equal to 36 therefore Louise is incorrect.
Answer 2

Answer:

SAMPLE RESPONSE

Step-by-step explanation:

Louise’s answer is not correct. She is missing the term 30x3. When squaring a binomial, it is best to write the product of the binomial times itself. Then you can use the distributive property to multiply each term in the first binomial by each term in the second binomial. Louise also could have used the formula for a perfect square trinomial, which is found by squaring a binomial.


Related Questions

How to find the constant rate of proportionality

Answers

Step-by-step explanation:

The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.

help me plzzz plzzz help me

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Answer:

sepa pero suerte no hablo ingles

Find ratio of 14 and 35​

Answers

Answer:

40%

Step-by-step explanation:

Answer:

40%

Step-by-step explanation:

someone actually help please!!! how much is 7/9 of -3/14

Answers

Answer:-0.16666666666

Step-by-step explanation:

If 13% is lost by selling goods for Rs 1475, what would be the loss or gain if the goods are sold for Rs 1615?

Answers

Given:

Loss percent is 13%.

Selling price = 1475

To find:

The loss or gain if the goods are sold for Rs.1615?

Solution:

Let x be the cost price of goods.

Loss percent is 13% and selling price is 1475.

[tex]1475=x-\dfrac{13}{100}x[/tex]

[tex]1475=x-0.13x[/tex]

[tex]1475=0.87x[/tex]

[tex]\dfrac{1475}{0.87}=x[/tex]

[tex]1695.4023=x[/tex]

[tex]x\approx 1695.40[/tex]

The cost price of goods is 1695.40.

We need to find the loss or gain if the goods are sold for Rs.1615.

Cost price is greater than the selling price because 1695.40 > 1615. It means , it is a loss.

[tex]Loss=CP-SP[/tex]

[tex]Loss=1695.40-1615[/tex]

[tex]Loss=80.40[/tex]

The loss percent is

[tex]Loss\%=\dfrac{Loss}{C.P}\times 100[/tex]

[tex]Loss\%=\dfrac{80.40}{1695.40}\times 100[/tex]

[tex]Loss\%\approx 4.74\%[/tex]

Therefore, the loss is 80.40 and the loss percent is about 4.74%.

a sequence of numbers is 8, 15, 22, 29. explain why 96 will not be a term in this sequence?​

Answers

Answer:

It want touch/Connect Either way the closest it can get was 99

8, 15, 22, 29, 36, 43, 50, 57, 64, 71, 78, 85, 92, 99.

pls help reward brainiest

Answers

Answer:

(5, 2) & (-4, -9)

Step-by-step explanation:

Use the vertex form, y = a(x − h)² + k, to determine the values of a, h, and k

(h, k) = (5, 2)

(h, k) = (-4, -9)

good luck, i hope this helps :)

Answer:

(5,2) Answer for first question

(-4,-9) Answer for the second question

Amanda must read a 259−page book for her history class over the next week. Amanda has found that she can read 37 pages in a hour. Complete the table, select the appropriate graph, and enter an equation to represent the number of pages that Amanda has left to read with relation to time. Use variable x for hours.

Answers

Answer:

I dont have an answer but here is a example I hope it helps

Step-by-step explanation: Josie selected a number n. She divided n by 2 and then subtracted ½ from the result. She took

half of that result and then subtracted ½ to get the final result of 10. What is the value of n?

Let’s start by writing Josie’s first step as an expression. Dividing n by 2, then subtracting ½ from

the result would be (n/2) – ½. If we build on this expression with the information in Josie’s

second step, we get ½((n/2) – ½) – ½. Knowing the final result is 10, we can set up the equation

below, and solve for n as follows:

½((n/2) – ½) – ½ = 10

½(n/2) – ¼ - ½ = 10 (using the distributive property)

¼n – ¼ - ½ = 10 (multiplying to eliminate the parentheses)

¼n – ¾ = 10 (combining like terms)

¼n = 10¾ (adding ¾ to both sides of the equation)

n = 43 (dividing both sides of the equation by ¼)

Tony made a scale drawing of his living room. The scale drawing has a length of 5 inches and a width of 3 inches. If the living room has an actual length of 12 feet, which equation could be used to determine w, the width of the living room?

Answers

Answer:5w=36

Step-by-step explanation:

Hello can i please have help on this question thank you

Answers

Answer:

[tex] y = \frac {1}{2}x +2[/tex]

Step-by-step explanation:

Line is passing through the points (0, 2) & (2, 3)

Slope of line = (3 - 2)/(2 - 0) = 1/2

Equation of line in point slope form is given as:

y - 2 = 1/2(x - 0)

2(y - 2) = x

2y - 4 = x

2y = x + 4

[tex] y = \frac {1}{2}x +\frac {4}{2}[/tex]

[tex] y = \frac {1}{2}x +2[/tex]

is the required equation of blue line.

Answer:

2y-4 =x

Rearranged as:

2y = x + 4

x = 2y - 4

y = x/2 +4

Attachment given below:

A regular heptagon has sides measuring 26 mm and is divided into 7 congruent triangles. Each triangle has a height of 27 mm. What is the area of the heptagon?

Answers

Answer:

567 square mm

because 27*7 is 189 an times 3 because each side has 3 sides so it equals to 567 square mm! :)

Step-by-step explanation:

BRAINLIEST THAT BOOM!!!!!!!!!


What is the inscribed angle and the circumscribed angle​

Answers

the inscribed angle is the one on the inside of the circle and the circumscribed angle is the right angle on the outside of the circle :)

LAST QUESTION!!! ANSWER THIS QUESTION PLZZZZ

Answers

Answer:

A. 80 yards

Step-by-step explanation:

Corresponding sides have same ratio in similar figures:

75/50 = 120/x x = 120*50/75x = 80

Correct option is A

Which phrases could n + 10 represent? Check all that apply.

Answers

Answer: 1,3,5

Step-by-step explanation: 1. the sum of a number , 2. A number plus ten, 5. Ten more then a number

Edge 2021

Please help 3/4
Solve the binomial
(2ab-3c)(2ab+3c)

Answers

Answer:

I’m answering so the other peep can get brainliest she’s correct I think I’m pretty sure I think so thx for points have a great day byee

Step-by-step explanation:


3 pencils cost $0.45. What is the cost per pencil?

Answers

Answer:

0.15

Step-by-step explanation:

Jason bought 4.5 kilograms of cream cheese. How many grams of cream cheese did Jason buy?

Answers

Answer:

the answer is 4500

Step-by-step explanation:

Answer:

He Bought 4,500 Grams of Cream Cheese.

Step-by-step explanation:

Mr. Starnes wondered what proportion of Katy Perry's Twitter followers are

female, so he selected a random sample of 500 of Katy Perry's followers. In the

sample, 308 are female. Construct and interpret a 90% confidence interval for the

true proportion of Katy Perry followers that are female.

Answers

Answer and Step-by-step explanation:

To calculate a confidence interval for a proportion:

1) Determine the proportion

[tex]p=\frac{308}{500}[/tex]

p = 0.616

2) A 90% confidence interval has z-score that is 1.645.

3) Calculate margin of error

[tex]ME=\sqrt{\frac{p(1-p)}{n} }[/tex]

where

n is the sample size

So

[tex]ME=\sqrt{\frac{0.616(1-0.616)}{500} }[/tex]

[tex]ME=\sqrt{\frac{0.616(0.384)}{500} }[/tex]

ME = 0.02175

Then the interval is given by

p ± z(ME)

0.62 ± 1.645(0.02175)

0.62 ± 0.035

The interval will be

0.585 < p < 0.655

What this means is that we are 90% confident that the true proportion of Katy Perry's Twitter female followers is between 0.585 and 0.655.

Can someone help me pls ‍♀️

Answers

Answer: 420, 81, 270, 216, 264, 154, 1824, 11400, 26741

all in order 1-10

Step-by-step explanation:

PLEASE HELP ASAP! WILL MARK BRAINLIEST

Answers

Answer:

201.06

Step-by-step explanation:

https://rb.gy/xgo4xh

Answer:

A=64π

Step-by-step explanation:

A=π[tex]r^{2}[/tex]

radius=8

A=π[tex]8^{2}[/tex]

A=64π

≈201.06

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Evaluate the expression when b=6 and y =-7

-b+9y

Answers

Answer:

-69

Step-by-step explanation:

What is 9+10 ( is it 21 or 19 )

Answers

Answer:

19 is your answer right answer

Answer:

19

Step-by-step explanation:

9+10= 19

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can somebody help? marking brainliest:)

Answers

Answer:

23/16

Step-by-step explanation:

23/16+1/16=24/16=3/2

The solution (x y) to a system of equatiohs is the point where they..?

Answers

Answer:

Intersect

Step-by-step explanation:

Which net represents this solid figure?

Answers

Answer:

The 3rd one

Step-by-step explanation:

Answer:

The second net.

Step-by-step explanation:

Which answer represents the expression in its expanded form?

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Given the triangle information below solve for the x value and the measure in degrees of angle a

Answers

x+61+x+43+90=180
x+x=2x
61+43+90=194
2x+194=180
194-189
2x=15
x=7.5
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Sketch the graph of each linear inequality

Answers

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For an angle with measure x in a right triangle, sin x = 112/113
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Answers

Answer:

cosx=Adj/hyp

cosx=15/113

An angle measures 38° less than the measure of its complementary angle. What is the measure of each angle?

Answers

Answer:

One angle is 26 degrees and the other is 64 degrees.

Step-by-step explanation:

Complementary angles add up to a total of 90 degrees. Therefore, if one of the two angles is known to be 38 degrees less, then the other angle can be calculated:

90 = (x-38) + (x)

52 = 2x

26 = x

This means that one of the angles is 26 degrees, and the other is 64 degrees.

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