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3 years ago

F (a)=2a^2-16a+32 For which 'a' is this equation 0?

1 answer:

7 0

If xy=0 assume that at leas 1 is zero
set it to zero

0=2a^2-16a+32
undistribute 2
0=2(a^2-8a+16)
2*0=0 so assume
a^2-8a+16=0
factor
(a-4)(a-4)=0
set to zero
a-4=0
a=4

when a=4, equation equals zero

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Solve it............<br>

DedPeter [7]

Answer:

Step-by-step explanation:

1) for '8'; '3'; and '10':

8/2+3+3=10

2) for '2'; '5' and '11':

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3 years ago

Which of the following consists of equivalent fractions

NeTakaya

The first one is the only one that shows equivalent fractions

If correct brainliest please

Thank you and Your welcome

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3 years ago

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Adult female height is normally distributed with a mean of 65.3 inches and a standard deviation of 2.32 inches. a) If an adult f

emmasim [6.3K]

Answer:

0.0423 is the probability that the adult female has a height less than 61.3 inches.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 65.3 inches

Standard Deviation, σ = 2.32 inches

We are given that the distribution of adult female height is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(adult female has a height less than 61.3 inches)

$P( x < 61.3) = P( z < \displaystyle\frac{61.3 - 65.3}{2.32}) = P(z < -1.7241)$

Calculation the value from standard normal z table, we have,

$P(x < 61.3) =0.0423 = 4.23\%$

0.0423 is the probability that the adult female has a height less than 61.3 inches.

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3 years ago

A coat that usually costs $123 is marked off 1/3 (one-third) off. What is the sale price of the coat? Round to the nearest dolla

serg [7]

Basically you just divide:

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So the sale price of the coat would be $41

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klio [65]

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