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4 years ago

10

Which quadratic function in standard form has the values a = –3.5, b = 2.7, and c = –8.2? f(x) = 2.7x2 – 8.2x – 3.5 f(x) = 2.7x2

– 3.5x – 8.2 f(x) = –3.5x2 – 8.2x + 2.7 f(x ) = –3.5x2 + 2.7x – 8.2

1 answer:

olga nikolaevna [1]4 years ago

5 0

Put the given values of a, b, c in the standard form

$f(x)=ax^{2}+bx+c$

It only matches the last selection ...

... f(x ) = –3.5x² + 2.7x – 8.2

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3 years ago

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3 years ago

The value of new cars at a local dealership is normally distributed with a mean of $34,600 and a standard deviation of $3,000. W

Vinvika [58]

Answer:

The percentage that a new car is expected to have a sticker price of between $31,600 and $40,600 is 81.86%.

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The random variable <em>X</em> is defined as the value of new cars at a local dealership.

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3 years ago

Complete this activity. Interest at the rates of 5%, 6%, and 8% is earned on investments of $13,000, $12,000, and $4,000 respect

zvonat [6]

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Investment matrix A (transposed) = (a1 a2 a3) = (13,000 12,000 4,000)

Interest Matrix B = (b1 b2 b3) = (0.05 0.06 0.08)

Amount of interest earned = a1b1 + a2b2 + a3b3

Amount of interest earned = (0.05) (13,000) + (0.06) (12,000) + (0.08)(4,000)

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4 years ago

Which correctly represents the inequality 10x+18<-2<br><br> PLSS

77julia77 [94]

Answer:

see below

Step-by-step explanation:

10x+18<-2

Subtract 18 from each side

10x+18-18<-2-18

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3 years ago