QUESTION 5 Simplify the following expression. -3/4 divided by 9/10

Mathematics

1 answer:

Nitella [24]4 years ago

5 0

Answer: (-3/4) times (9/10)

Step-by-step explanation:

-0.75 times 0.9 (in decimal form)= -0.675

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What is the expanded form of 132.6

sveta [45]

Answer:

Step-by-step explanation:

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4 years ago

The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces.

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First we calculate z using the formula:

z = (x - μ)/σ

Where:

x = our variable, 10

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3 years ago

A 12-cm-long thin rod has the nonuniform charge density λ(x)=(2.0 nC/cm)e−|x|/(6.0 cm), where x is measured from the center of t

Inessa [10]

Answer:

the total charge is

$Q=24(1-\exp(-1))nC\approx15.171nC$

Step-by-step explanation:

Since x is measured from the center, that means that x=0 is the center so the edges of the rod correspond to x=-6 and x=6. that meas that the total charge can be calculated as

$Q=\int^{6}_{-6}2\exp\left(\frac{-|x|}{6}\right)dx$

separating the integral from -6 to 0 and from 0 to 6, taking into account that |x|=-x for x<0 and |x|=x for x >=0, we get $Q=\int^{0}_{-6}2\exp\left(\frac{x}{6}\right)dx+\int^{6}_{0}2\exp\left(\frac{-x}{6}\right)dx$

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