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Gnesinka [82]
3 years ago
6

How do I do the power rule I don't understand

Mathematics
1 answer:
Yakvenalex [24]3 years ago
3 0
You multiply the number by itself however many times it says for example 2 to the second power 2x2 is 4
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A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the we
Dmitrij [34]

Answer:

a. Mean = 155.1 grams

b. Standard deviation = 0.37

c. Fractional uncertainty = 0.074

Step-by-step explanation:

a. Average weight

This is same as the mean weight;

Mathematically, that would be; sum of the weights/ the number of weights

= (155.1 + 154.8 + 155.5 + 155.3 + 154.6)/5 = 775.3/5 = 155.06 which is approximately 155.1

b. Standard deviation

Mathematically; we calculate that using the formula;

√{(x-mean)^2/(N-1)}

Please check attachment for for the complete breakdown of this

c. Fractional uncertainty

= Standard deviation/number of measurements = 0.37/5 = 0.074

7 0
3 years ago
A right rectangular pyramid is sliced parallel to the base, as shown.
ELEN [110]

The answer would be the first choice.  15 cm^{2}

Explanation: The reason for this is that the question was pretty much just asking what the area of the resulting two-dimensional cross section would be -the shape in gray- (which can be found by using the formula lw. To add on, since the dimensions of the shape are already given (5 and 3) all you've to do is multiply: 3*5=15

That's how you get to the answer.

7 0
3 years ago
Read 2 more answers
ASAP ASAP HELP MARK AS BRAINLIEST
Anna007 [38]

Alright, imma help you. Imma work on it on a piece of paper. :D

4 0
3 years ago
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laurens suv was detected exceeding the posted speed limit of 60 kilometers per hour , how many kilometers would she have been tr
Vlada [557]

Answer:

60 kilometers per hour (kmph) over the limit

Step-by-step explanation:

The speed limit is 60 kmph

Let's find his original rate:

We know D = RT

Where

D is the distance, in km

R is the rate, in kmph

T is the time in hours

He went 10 km in 5 minutes, so we need the time in hours, first. That would be:

5/60 = 1/12 hour

So, putting into formula, we find rate:

D = RT

10 = R(1/12)

R = 10/(1/12)

R = 10 * 12

R = 120 kmph

He was going over by:

120 - 60 = 60 kmph

6 0
3 years ago
What are the solutions of -1 ≤ x – 3 < 4
cricket20 [7]

Answer:

2 ≤ x  < 7

Step-by-step explanation:

-1 ≤ x – 3 < 4

Add 3 to each side

-1+3 ≤ x – 3+3 < 4+3

2 ≤ x  < 7

7 0
3 years ago
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