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3 years ago

Calculate the slope of the line going through A(-4,3) and B(0,6)

Mathematics

1 answer:

Whitepunk [10]3 years ago

5 0

Answer:

3/4

Step-by-step explanation:

The slope of the line is given by

m= (y2-y1)/(x2-x1)

= (6-3)/(0 - -4)

= (6-3)/( 0+4)

3/4

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If F(x)=x^3-2x^2, which expression is equivalent to f(I) -2+i,-2-i,2+i,2-i

Romashka-Z-Leto [24]

Hello from MrBillDoesMath!

Answer:

2 - i

Discussion:

Evaluate F(x) = x^3 - 2 x^2 when x = i.

i^2 = -1 for i^3 = i ( i^2) = i (-1) = -i

So F(i) = (i)^3 - 2 (i)^2

= -i - 2(-1)

= -i + 2

= 2 - i

which is the last answer shown

Thank you,

MrB

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3 years ago

How many gallons are equal to 27.3 hectoliters?

Mandarinka [93]

Answer:

721.19 gallons

Step-by-step explanation:

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3 years ago

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3.1415 is rational or irrational

attashe74 [19]

If it is just the decimal 3.1415 then it is rational. If it is pi it is irrational

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3 years ago

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A shoe manufacturer collected data regarding men's shoe sizes and found that the distribution of sizes exactly fits the normal c

Lina20 [59]

Answer: 97.72%

Step-by-step explanation:

Given : A shoe manufacturer collected data regarding men's shoe sizes and found that the distribution of sizes exactly fits the normal curve.

Let x be the random variable that represents the shoe sizees.

Also, The population mean = $\mu=11$ ; Standard deviation: $\sigma=1.5$

Formula for z:-

$z=\dfrac{x-\mu}{\sigma}$

Put x= 8, we get

$z=\dfrac{8-11}{1.5}=-2$

Now, the probability that the male shoe sizes are greater than 8 :-

$P(x>8)=P(z>-2)=1-P(z\leq-2)\\\\=1-0.0227501=0.9772499\approx0.9772$

Hence, the percent of male shoe sizes are greater than 8 is 97.72%.

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3 years ago

What is 57.42 + 4 + 1.02? Pls help and I need a small simple explanation...

vova2212 [387]

Answer:

62.44

Step-by-step explanation:

Line up the decimals and then add them up like usual, and then place the decimal where it should go. THen you get your answer.

Hope this helped!

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