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BigorU [14]
3 years ago
7

What are the values of a, b and c in the quadratic equation -2x2+4x -3=0

Mathematics
2 answers:
Kaylis [27]3 years ago
7 0

Answer:

a = - 2, b = 4, c = - 3

Step-by-step explanation:

The standard form of a quadratic equation is

ax² + bx + c = 0 ( a ≠ 0 )

Compare  - 2x² + 4x - 3 = 0 to the standard, giving

a = - 2, b = 4, c = - 3

iren [92.7K]3 years ago
3 0

Answer:

See below in bold.

Step-by-step explanation:

-2x^2 + 4x  - 3 = 0     Compare this with the standard form:

ax^2  + bx + c = 0

We see that a = -2, b = 4 and c = -3.

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Please include work! :)
UNO [17]

Answer:

m = 13.

Step-by-step explanation:

Recall that adding logarithmic equations, (ex: log a + log b) is the same as log (a·b). Therefore:

log 12 + log 5 = log (4m + 8)

log (12·5) = log (4m + 8)

log (60) = log (4m + 8)  **Ignore 'Log' to solve for 'm'

60 = 4m + 8  **Subtract both sides by 8

52 = 4m  **Divide both sides by 4

m = 13.

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3 years ago
What is the first quartile and third quartile of this data set: 34, 34, 36, 39, 50, 41, 45, 47, 40?
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Answer:

whatever

Step-by-step explanation:

the first quartile is between 34 and 36 = 35

the third quartile is between 45 and 47 = 46

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Ms. Ross has 24 students. 2/3 of her students have brown hair. The rest have blonde. How many students have brown?
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Solve for x.<br> Give the solutions in ascending order.<br><br> x^2+3x-4=0<br> x= or x=
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To solve this equation simply find 2 numbers that multiply to give -4 and add also to give 3, these numbers are 4 and -1. Since 4 • -1 = -4 and 4 + -1 = 3.

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