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adelina 88 [10]
2 years ago
5

Simplify the following expression: -5a⁷ b⁻³ • 4a⁻⁶ b⁶

Mathematics
2 answers:
Rudiy272 years ago
7 0
What is the • supposed to be? are you adding, subtracting, multiplying or dividing?
salantis [7]2 years ago
7 0
= -20a^1 b^3
This is my answer
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The amount of Jen’s monthly phone bill is normally
vredina [299]

Answer:

P(19

And we can find this probability with this difference and using the normal standard distribution

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Step-by-step explanation:

Let X the random variable that represent the amount of Jen monthly phone of a population, and for this case we know the distribution for X is given by:

X \sim N(55,12)  

Where \mu=55 and \sigma=12

We are interested on this probability

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And we can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

Replacing the info we got:

P(19

And we can find this probability with this difference and using the normal standard distribution

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7 0
3 years ago
What is an equation of the line that passes through the points (4, 4) and (8, 1)?
geniusboy [140]

Answer: y = -3/4x + 7

Step-by-step explanation:

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y2-y1 / x2 - x1

1-4 / 8-4

-3/4

now just plug the slope (m) into the equation of a line using one of the points to find the y intercept

ill use (8,1)

1 = (-3/4)(8) + b

now solve :)

1 = -6 + b

7 = b

so now plug in the slope and the y intercept into the slope intercept form to find the equation of the line

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3 0
2 years ago
There were 8 finalists in the Atlantic County spelling bee and 12 finalists in the Ocean County spelling bee. If one finalist fr
wolverine [178]
I think it is A
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4 0
2 years ago
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Dimas [21]

Answer:

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Step-by-step explanation:

angle 1 and angle 3 are have the same messure  so angle 3 equals to 135

8 0
3 years ago
Consider a refrigerator that consumes 320 W of elec- tric power when it is running. If the refrigerator runs only one quarter of
irinina [24]

Answer: The refrigerator cost in this month is $4.5 approximately.

Step-by-step explanation:

Since we have given that

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Number of hours in a month = 24

So, the refrigerator cost in this month would be

0.13\times 0.32\times \dfrac{1}{4}\times 30\times 24\\\\=\$7.488

Hence, the refrigerator cost in this month is $4.5 approximately.

3 0
3 years ago
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