Marco is turning the expression (x-4)^2 into a trinomial. He writes down what is shown below. What is his error?

Marco Is Turning The Expression (x-4)^2 Into A Trinomial. He Writes Down What Is Shown Below. What Is

Answers

Answer 1
(x-4)(x-4)
=x^2-4x-4x+16
=x^2-8x+16
it’s +16, not negative. he forgot that when you add two negatives together, it becomes positive.
Answer 2

Answer:

Step-by-step explanation:

first, let's solve the equation ourselves.

(x-4)^2= (x-4)(x-4)= x^2−8x+16

now, we can see what's different about the two.

we can say that Marco's answer had the number 16 as a negative, when it was supposed to be positive. Marco wrote the incorrect sign.


Related Questions

Solve the equation for X.
X
12
4

Answers

Answer:

x=16

Step-by-step explanation:

The Eye Bank in Venice has a unique construction. If one of its trapezoidal panels has a height of 50 feet and bases of 40 feet and 36feet, what is its area?

Answers

Answer:

Area is 1900

Step-by-step explanation:

Give Me Brainllest

Angle P and angle Q are supplementary angles. If m(angle)p is 21 degrees less than twice the measure of
Angle Q , find the measure of each angle.

Answers

Answer:

Angle Q: 67 degrees

Angle P: 113 degrees

Step-by-step explanation:

You can write an equation to solve this. We know that angle P + angle Q = 180. If we substitute angle Q into the second equation we get angle P = 2*angle Q -21.

Plugging that knowledge into the first equation, we get 2*angle Q-21 + angle Q =180. Simplifying, we get 3* angle Q -21 = 180. Adding 21 to both sides gives us 3*angle Q = 201, dividing by 3 gives us angle Q = 67. 180-67= 113 so angle P is 113.

Choose the equation that best describes the image.

Answers

Answer:

D

Step-by-step explanation:

your welcome!!!!!!! :D :)

ZABD and ZDBC are supplementary angles.
What is the measure of x?
X = [?]°
AK
170%
B

Answers

Answer:

10 degrees

Step-by-step explanation:

if it's supplementary then the two angles add up to get 180.

180-170=10

Plzzzz help me to find the answer

Answers

Answer:

im pretty sure its 67, sorry if I'm wrong

attachment
look at it

Answers

Answer:

The first one 4(m-5)

Step-by-step explanation: 4 goes into M turning into 4m. Then 4 goes into 5 turning into 20 which is  4m-20

Number 1 4(m-5) i did that in 7th

What is the value of y in (1/2)x + 3 = (1/3)y - 2 if x = 28/3?

Answers

Answer:

y = 29

Step-by-step explanation:

x/2 + 3 = y/3 - 2

28/3 ÷ 2 = 14/3

14/3 + 9/3 = y/3 - 6/3

23/3 + 6/3 = y/3

29/3 = y/3  ∴ y = 29

If g(x) = 8(1/2)^x then what is g(-1)= ?

Answers

Answer:

x=0  

g−1(4)=0∵ g(0)=4

Step-by-step explanation:

9+q<15 solve the inequalitie

Answers

Answer:

q < 6

Step-by-step explanation:

9 + q < 15                                                                                                                 subtract 9 from both sides        

The specification for the pull strength of a wire that connects an integrated circuit to its frame is 10 g or more. In a sample of 86 units made with gold wire, 68 met the specification, and in a sample of 120 units made with aluminum wire, 105 met the specification. Let pX represent the population proportion units made with gold wire that meet the specification and let pY represent the population proportion units made with aluminum wire that meet the specification. Find a 95% confidence interval for the difference

Answers

Answer:

The 95% confidence interval for the difference is (-0.1888, 0.0202).

Step-by-step explanation:

Difference between proportions:

The distribution of the difference between two proportions has mean of the difference between these proportions and standard deviation is the square root of the sum of the variances. So

In a sample of 86 units made with gold wire, 68 met the specification

This means that:

[tex]pX = \frac{68}{86} = 0.7907[/tex]

[tex]sX = \sqrt{\frac{0.7907*0.2093}{86}} = 0.0439[/tex]

In a sample of 120 units made with aluminum wire, 105 met the specification.

This means that:

[tex]pY = \frac{105}{120} = 0.875[/tex]

[tex]sY = \sqrt{\frac{0.875*0.125}{120}} = 0.0302[/tex]

Difference:

[tex]p = pX - pY = 0.7907 - 0.875 = -0.0843[/tex]

[tex]s = \sqrt{sX^2 + sY^2} = \sqrt{0.0439^2+0.0302^2} = 0.0533[/tex]

Confidence interval:

[tex]p \pm zs[/tex]

In which z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex], with [tex]\alpha[/tex] being 1 subtracted by the confidence level.

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

Lower bound of the interval:

[tex]p - zs = -0.0843 - 1.96*0.0533 = -0.1888[/tex]

Upper bound of the interval:

[tex]p + zs = -0.0843 + 1.96*0.0533 = 0.0202[/tex]

The 95% confidence interval for the difference is (-0.1888, 0.0202).

Blue paper chains are 8 inches long.
Red pepper chains are 6 inches long. How many are needed to have 22 inches of paper chains?

Answers

Answer:

The answer is 0

Step-by-step explanation:

Jesus will help you he think you got this

2 blue chains and 1 red chain

A sports store received a shipment of 150 footballs and basketballs. 20% were basketballs. How many footballs were in the shipment?

Answers

0.20(150) = 30 basketballs were in the shipment. Since the shipment presumably comprised only footballs and basketballs, the remainder of the shipment must consist of footballs.

150 - 30 = 120 footballs were in the shipment.

I need help I’m in math class! Help please

Answers

Answer:

1350π [tex]cm^3[/tex] should be your answer

Step-by-step explanation:

15 x 15 x π = 225π

225π x 6 = 1350π

Is 5 times 5/6 greater than 5

Answers

Answer:

No

Step-by-step explanation:

since 5/6 is not a whole it should be a little less than 5

Which value from the set {4,6,8,10} will make p+p+p+p=24 true?
A.4
B.6
C.8
D.10​

Answers

Answer:

I think B.6 is the answer

11. Evaluate f(2) for f(x) = x3 + 6x2 + 3x -5.
A. 24
B. 33
C.43
D. 27

Answers

Answer:

B.33

Step-by-step explanation:

Plug in 2 for x

(2)^3+6(2)^2+3(2)-5=

Answer:

B

Step-by-step explanation:

Remark

F(2) means that wherever you see an x on the right side of the equal sign, you substitute 2 for.

Suppose the question was f(2) = 3x + 5

Put a 2 where the x is.

f(2) = 3*2 + 5

f(2) = 6 + 5

f(2) = 11

Equation

f(x) = x3 + 6x2 + 3x -5.

Solution

f(2) = 2^3 + 6*2^2 + 3*2 - 5

f(2) =  8 + 6*4 + 6 - 5

f(2) = 8 + 24 + 1

f(2) = 33

4x+12<-8
What is the solution set for the inequality?

Answers

Answer:

x<-5

Step-by-step explanation:

Which of the statements is false about the additive identity?
A. if y is the additive identity, then x+y=x
B. the value of the additive identity is 0
C. Adding the additive identity corresponds to making no movements at all on the number line
D. it is the number you add to another number to get 0

Answers

Answer:

The Identity Property of Zero, also called the Additive Identity Property, states that if you add 0 to any number, the result will be that number. Likewise, if you subtract 0 from any number, the result will be that number. Believe it or not, this works for all real numbers.

Step-by-step explanation:

100 PTS help all information in pictures below

Answers

Answer:

Question 1: 11%

Question 2: 89%

Question 3: 43%

Question 4: 11%

Step-by-step explanation:

Looking at picture 1, we need to find the crossing point between -1.2 and 0.05. That has 0.1056, which is the same as 10.56%. 10.56% rounds to 11%, so C is our answer.

Picture 2 has the same chart, but we just need to find the inverse, since the inequality sign is flipped. 100 - 10.56 is 89.44%, which rounds to 89%, so D is the answer for Picture 2.

Picture 3 has two tables. 0.73 has 76.73% and -0.41 has 34.09%. Subtract 34.09% from 76.73% to get 42.64% That rounds to 43%, so A is the answer.

Picture 4 essentially has the same expression as Picture 2 (only the sign has switched): P(z ≥ 1.25). The meeting point is 89.44%. Now, subtract that from 100 to get 10.56%, which rounds to 11%. C is our answer for Picture 4.

I hope this helps you! ^w^

Answer:

Question 1: 11% , Question 2: 89%, Question 3: 43%, Question 4: 11%.

Step-by-step explanation:

The First person's answer is correct. Have a great summer.

12) What type of triangles will always be similar to one another?

Answers

Answer:

Right

Step-by-step explanation:

Answer: Two equilateral triangles are always similar.

Step-by-step explanation:

which expression is equivalent to n+n+n+n? pick outta these A n4 B 4n C4n to the power of 4 D n+4

Answers

Answer:

B

Step-by-step explanation:

Answer:

the answers b sorry if it's wrong

Step-by-step explanation:

have a great day

Do you like potato chips? 1+1

Answers

Answer:

yes 1+1=2

Step-by-step explanation:

Answer:

Yes I love chips and the answer is 2 -W-

1.
Solve and show your work for each question.
a.
What is 0.454545repeating expressed as a fraction in simplest form?
b. What is 0.455555repeating expressed as a fraction in simplest form?
C.
What is 0.45 expressed as a fraction in simplest form?

Answers

Answer:

Step-by-step explanation:

0.454545

i think

Which expression is equivalent to 64^1/4

Answers

Answer:

C

Step-by-step explanation:

It is C because 64 to 1/4 power is just 64 divided by 4.

The ratio of two similar triangles is 4/5. If a side in the larger triangle is 62, what is the length of the corresponding side in the smaller triangle?

Answers

Answer:

[tex]let \: the \: corresponding \: side \: of \: smaller \: triangl e \: be \: of \: length \: x \\ 4 \ratio5 = x \ratio62 \\ \frac{4}{5} = \frac{x}{62} \\ x = 62 \times \frac{4}{5} \\ x = 49.6[/tex]

The temperature never rose above 6 °F on Friday. Which number line could represent this situation?
A
+
0 1
+
2.
+
3
w==
+
4 5 6 7 8 9 10
B
0 1 2 3
4 5 6 7 8 9 10
C

+
0 1 2 3 4 5 6 7 8 9
10
D
+
0 1 2
+m
+
4 5 6 7 8
+
9
10

Answers

Answer:

b

Step-by-step explanation:

Find the area of the figure.

Answers

Answer:

30 units^2

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

Multiply length times width

Each side is 6 units. That would be your length

And both the top and bottom are 5 units each. This would be your width.

5 times 6= 30

Find the value of x (only answer if you're sure)

Answers

Answer:

x = 6

Step-by-step explanation:

It's simple.

This is just dilation. Since its a scale factor of 0.25 and you want to find x on the bigger one. Then we know we have to then change it into a fraction, 1/4. Which means that 1.5 is only a fourth of x. So, if you do the math: 1.5*4=6.

Therefore, your answer would be x = 6

Okay Ju|ian Foley simplifies this polynomial and then write it in standard form if Ju|ian wrote it the last term

Answers

Answer:

the second choice

Step-by-step explanation:

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