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11111nata11111 [884]
3 years ago
10

Joseph has started completing the square on the equation 3x2 - 7x + 12 = 0. He has worked to the point where he has the expressi

on x2 - x = -4. Use complete sentences describe Joseph’s steps up to this point and whether or not his work is accurate.
Mathematics
1 answer:
MrMuchimi3 years ago
7 0

Joseph has started completing the square on the equation where

given equation is

3x^2-7x+12=0

move constant term to other side.

3x^2-7x=-12

divide both sides by coefficient of x^2 that is by 3

x^2-\frac{7}{3}x=-\frac{12}{3}

x^2-\frac{7}{3}x=-4

This is the same step upto which Joseph has worked. But he got different equation

x^2-x=-4

Hence his work is not accurate.


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Step-by-step explanation:

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A truck begins a trip of 1675 miles. The truck averages 55 miles per hour, including stops. create a table, a graph, and an equa
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Let
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3 years ago
“ write all your answers with a positive exponent so your answer will be in the form of x^# or 1/(x^#)
gayaneshka [121]

Answer:

Step-by-step explanation:

5). \frac{1}{x^{-9}} = \frac{1}{\frac{1}{x^9} }

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7). x^{-6}=\frac{1}{x^6}

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7 0
3 years ago
Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
vagabundo [1.1K]

Answer:

A) -2 - i√3 , -2 + i√3

Step-by-step explanation:

Solve using quadratic formula

x² + 4x + 7 = 0

The Almighty Formula

= -b ± √b² - 4ac/2a

Where ax + bx² + c = 0

From the above question

a = 1, b = 4, c= 7

Hence,

-4 ± √4² - 4 × 1 × 7/2 × 1

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Option A , is the correct answer

3 0
3 years ago
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