Erik transformed the equation y = 2(x − 2)2 + 5 from vertex form to standard form. His steps are shown below. Is Erik's work correct? If not, identify and correct his error.
y = 2(x − 2)2 + 5
y = 2(x2 − 4x + 4) + 5
y = 2x2 − 8x + 8 + 5
y = 2x2 − 8x + 13

answer choices

No. The error is in the second line: the expanded form of (x − 2)2 is x2 − 4.

No. The error is in the third line: the product of 2 and x2 − 4x + 4 is 2x2 − 4x + 4.

No. The error is in the fourth line: the sum of 8 and 5 is 12.

Yes. Erik is correct in his transformation from vertex form to standard form.

Answers

Answer 1

It’s yes, your welcome!

Related Questions

what is the mean price of $29 $58 $15 $129 $75 $22

Answers

55 is your answer
each number added together sums up to $330
there are 6 numbers
if you divide 330 by 6 you will get 55

The school is located where Wilson Street and Green Street intersect. Which ordered
pair represents the location of the school?

Answers

(5,3) is the answer for the current question

Geometry help please. What is J? What is G?

Answers

Answer:

j = 32

g = 78

Step-by-step explanation:

because they are similar you can use CPCTC corresponding parts of congruent triangles are congruent to determine f = j and h = g

all of the following represents three multiplied by six except
3 × 6
3 . 6
3 (6)
3:6

Answers

Answer:

the second one

Step-by-step explanation:

non

Duran is making party favors by placing a circular disk in the bottom of a plastic bag. Each disk has diameter of 6 centimeters. What is the area of the disk to nearest hundredth. ** Use 3.14

A. 18.84

B. 28.26

C. 91.06

D. 113.04

Answers

Answer:

B. 28.26

Step-by-step explanation:

Write an equation of the line that passes through the given point P and has the given slope m.
P(9,4)
m = -1/3

Answers

9514 1404 393

Answer:

y -4 = -1/3(x -9)

Step-by-step explanation:

The point-slope form of the equation for a line is useful for this.

y -k = m(x -h) . . . . . . . line through point (h, k) with slope m

You are given (h, k) = (9, 4) and m = -1/3. Putting these values into the form gives the equation ...

y -4 = -1/3(x -9)

What is the value of x?
A. 25°
B. 50°
C. 55°
D. 75°
E. 80°

Answers

Answer:

Option Bx = 50°

Step-by-step explanation:

By the condition,

25° + 105° + x = 180° [Angle sum property of triangle]

=> 130 + x = 180

=> x = 180 - 130

=> x = 50° (Ans)

I am not 100% but I guess it’s B

Zoe runs a market in the city of Manila. Half of the canned drinks in stock were sold out. Zoe bought 68 more canned drinks to restock her supply. If there is a total of 200 cans now, how many canned drinks were in stock initially?

Answers

Answer:

264 canned drinks

Step-by-step explanation:

Let

canned drinks in stock initially = x

Canned drinks sold out = 1/2 of x

= 1/2x

Canned drinks remaining in stock = x - 1/2x

= 1/2x

New restock = 68 canned drinks

Total drinks in stock presently = Canned drinks remaining in stock + New restock

200 = 1/2x + 68

200 - 68 = 1/2x

132 = 1/2x

x = 132 ÷ 1/2

= 132 × 2/1

x = 264 canned drinks

canned drinks in stock initially = x = 264 canned drinks

Find the geometric mean of the pair of numbers. Give your answer in simplest radical form.
1/4 and 4

Answers

Answer:

Step-by-step explanation:

The geometric mean of two numbers is the suqre root of their product

=sqrt(1/4*4)

=sqrt(1)

A central angle of a circle that measures 2 radians intercepts an arc of length 10 cm. What is the length of the radius?
5 cm
10 cm
15 cm
20 cm

Answers

Answer:

5 cm

Step-by-step explanation:

Arc length (S) = 10 cm

Central angle [tex] (\theta) [/tex] = 2 radians

We need to find: radius of the circle (r)

[tex] \because S = r \theta [/tex]

[tex] \therefore 10 = r(2) [/tex]

[tex] \therefore r= \frac{10}{2} [/tex]

[tex] \therefore r= 5\: cm [/tex]

Tina paid $6.60 for some $0.15 stamps and some $0.20 stamps. She bought 37 stamps in all. How many of each kind did she buy?
PLS HELP

Answers

Answer:

1 set of A= $0.15

1 set of B= $0.20

Total Stamps bought = 37

Total purchase = 37

Let X= Set A of $0.15 each

Y= Set B of $0.20 each

x+y = 37----------X=37-Y

0.15X + 0.20Y = 6.60

0.15(37-Y) + 0.20Y = 6.60

5.55- 0.15Y + 0.20Y =6.60

0.05 Y = 6.60-5. 55

Y=1.05/ 0.05= 21

X= 37-21= 16

Can someone please help me on this homework ASAP!!

Answers

Answer:

Step-by-step explanation:

Multiply each term of (x² + 2x - 1) by x and multiply each term of (x² + 2x - 1) by 3

Area of parallelogram = bh

= (x² + 2x - 1)(x + 3)

= (x² + 2x - 1)*x + (x² + 2x - 1)*3

=x²*x + 2x*x - 1*x + x²*3 +2x*3 - 1*3

= x³ + 2x² - x + 3x² + 6x - 3

= x³ + 2x² + 3x² -x + 6x - 3

= x³ + 5x² + 5x - 3

Which of the following has a value that is greater than 10,000 but less than 100,000?

Answers

Answer:

8.721 x 10^4

Step-by-step explanation:

hope this helps:)

Evaluate whether the value makes a true or false statement.
-16 A
True
B
False

Answers

Answer:

true

Step-by-step explanation:

Factor this quadratic equation x^2-3x=0 showing all steps

Answers

Answer: x = 0; x = 3

Step-by-step explanation:

x^2 - 3x = 0

1. x is a common factor, so factor it out

x(x - 3) = 0

2. set both factors equal to zero

x = 0

x - 3 = 0

3. final answer

x = 0

x = 3

The 10 students in the Environmental Club represent 10% of the students in the seventh grade. How many students are in the seventh grade?

Answers

Answer:

100 students

Step-by-step explanation:

10% of students in 7th grade ----- 10 students

Divide by 10 on both sides:

1% of students in 7th grade ----- 10 ÷10= 1 student

×100 on both sides:

100% of students in 7th grade ----- 1 ×100= 100 students

Answer:100

Step-by-step explanation:

Matt's savings account earns 2% interest each year. He had $200.00 in his savings account
at the beginning of the first year. If he did not deposit or withdraw any money, what is the
value of Matt's savings account at the end of the second year?

Answers

Answer:

208.08

Step-by-step explanation:

math

Answer:

204

Step-by-step explanation:

2% of 200 is 2 so after second year it will be 200,+2+2 that is 204

A truck is painting traffic lines along a highway the truck paints 8 miles of lines in 3 hours at the rate how many miles can a truck paint in 12 hours.

Answers

Answer:

The truck can paint 32 miles in 12 hours.

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

the scale is x4

because 10x4=40

11x4=44

18x4=72

you multiply by 4 on all of them

Answer:

the scale is x4

because 10x4=40

11x4=44

18x4=72

you multiply by 4 on all of them

Step-by-step explanation:

Round 0.589 to the nearest hundredth
A. 0.59
B. 0.6
C. 0.58
D. 1

Answers

The answer is a: 0.59.

The answer would be A. 0.59.

Tenths: .5
Hundredths: . 8
Thousandths: . 9

9 is more than 5 so you round up.

And the next number is 9.

Therefore, it would be 0.59.

HELP PLEASE!!!!!!!!!

Answers

Step-by-step explanation:

Hmm I saw this question before its C

Answer:

Step-by-step explanation:

Need help. Find the value of x

Answers

Answer:

Step-by-step explanation:

Why is it not possible to make a right triangle using lengths of 4 feet, 8 feet, and 10 feet?

Answers

Answer:

because it does not follow the rule... you should be able to and any to side lengths and get an answer greater than the third side.

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

Step-by-step explanation:

x is greater than 2 so all numbers bigger than 2 will be shaded. the circle is open because its not less than or equal to or greater than or equal to.

Hello I need help with this question. Can you please explain how to got your answer?

Answers

Answer:

B) y = 4/3x - 2

Step-by-step explanation:

In pic below.

Answer:

The correct answer is B

Step-by-step explanation:

hope it will help you

I dont know what To Put here srry
There is a question here it pic

Answers

Answer:

31.4 OR 10π

Step-by-step explanation:

circumference of the circle: 2 × 3.14(π) × radius

the radius in the circle shown is 5

2 × 3.14 × 5 = 31.4

2 × π × 5 = 10π

5 x2 is 10 then times pi would be 31.4

3. What kind of angle is this?
Right Angle
Straight Angle
Obtuse Angle
Accute Anglw

Answers

Answer:

That's acute angle

Right angle is exactly 90 degrees

straight Angle is exactly 180

obtuse angle is greater than 90 degrees and less than 180 degrees

acute angle is less than 90 degrees

All of the following situations can be
represented by the integer 10, except
which one?
A A balloon rises 10 ft into the air
B the stock market gains 10 points
C The town lies 10 ft below sea level
D Jon received a gift of $10

Answers

Answer:

Step-by-step explanation:

An integer is a whole number

If the stock market gains by 10 basis points. It means that it increases by (0.0001 x 10) = 0.001% or 0.00001

this is a decimal and not an integer

Question for Tejkmurray !!!

Answers

(0,5) if you look at where the U line is intercepting the Y axis that the answer

answer but no links. quickly please

Answers

Answer:

1. 18

2.3 and 3/4

3.6 and 1/4

Step-by-step explanation:

3 by 6 equals 18 since 12 divided by 2 is 6

15 divided upon 4 is 3.75 or 3 3/4

50 divided by 8 equals 6.25 or 6 1/4

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