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AveGali [126]
3 years ago
13

Your teacher asks the class to evaluate the expression. Your classmate gives an incorrect answer of 256. Evaluate the expression

. Then find the likely error
Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0

Answer:

What expression?

Step-by-step explanation:

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Complete the square to find the vertex of this parabola.PLEASE HELP!!
Paladinen [302]

Answer:

(1, 5 )

Step-by-step explanation:

Given

x² - 2x + y - 4 = 0 ( add 4 to both sides )

x² - 2x + y = 4

Complete the square on x² - 2x

add ( half the coefficient of the x term )² to both sides

x² + 2(- 1)x + 1 + y = 4 + 1, that is

(x - 1)² + y = 5

Subtract (x - 1)² from both sides

y = - (x - 1)² + 5

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

y = - (x - 1)² + 5 ← is in vertex form

with vertex = (1, 5 )

4 0
3 years ago
Please awnser questions, no links, no I dont know
balandron [24]

Answer: C

Step-by-step explanation:

The equation is 3x = 6, that represents 3 x ? = 6, babe. 3 x 2 = 6, so that means C must be the answer. If it was D, it would be 0.2 I think, and if it was B, it would’ve been -2. If it was A, it would’ve been 0. Bye-bye toots~

3 0
3 years ago
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Solve the problem using the guess-and-check method.
ehidna [41]
Answer is 14 lightbulbs
8 0
2 years ago
Mani,James, and Isidro shared 1/2 of a pie. Which fraction of the whole pie did each of them receive?
bija089 [108]

Answer:

1/6

Step-by-step explanation:

\frac{1}{2}/3= 1/6

3 0
3 years ago
A vacuum cleaner costs £85
Vitek1552 [10]

Answer: £76.50

Step-by-step explanation:

You find 10% of 85 = 8.5

then you do £85-£8.50 = 76.50

7 0
3 years ago
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