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3 years ago

The weight of 1000 identical samples of a substance is 1 pound what is the weight of 10 samples

Mathematics

1 answer:

fenix001 [56]3 years ago

5 0

is .001 pound

this is the correct answer

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I have a Exemplar due by Today so maybe someone can help with those requirements?

FinnZ [79.3K]

Answer:

Step-by-step explanation:u need to find the amount of pencil she needed for next year and then u will find the amount boxes she needs to order

24*12=288 pencils

288÷144= 2 boxes

So she just need to order 2boxew for the entire year

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3 years ago

Write as a single power: 5^3 × 5^2 × 5

xxMikexx [17]

Answer:

$5^6$

Step-by-step explanation:

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3 years ago

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Simplify the expression below (X^3)^2

slega [8]

X^(3•2) =X^ 6

Think of an example such as :

(2^3)^2=8^2=64 is the same with

2^(3•2) = 2^6 = 64

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3 years ago

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Please tell me the vertex, axis is symmetry, and the x and y intercepts. ANSWER FAST PLEASE!!

QveST [7]

The y intercept is -2. There is two x- intercepts because it is a parabola so,

x=-1

x=2

The axis of symmetry is where it splits evenly so, we can conclude it is less than 1 and bigger than 0. I hope this makes sense.

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3 years ago

An article claims that 12% of trees are infested by a bark beetle. A random sample of 1,000 trees were tested for traces of the

inna [77]

Answer: 0.6812

Step-by-step explanation:

Let p be the population proportion of trees are infested by a bark beetle.

As per given: p= 12%= 0.12

Sample size : n= 1000

Number of trees affected in sample = 1000

Sample proportion of trees are infested by a bark beetle. = $\hat{p}=\dfrac{127}{1000}=0.127$

Now, the z-test statistic : $z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

So, $z=\dfrac{0.127-0.12}{\sqrt{\dfrac{0.12\times 0.88}{1000}}}$

$z=\dfrac{0.007}{\sqrt{\dfrac{0.1056}{1000}}}\\\\\\=\dfrac{0.007}{\sqrt{0.0001056}}\\\\\\=\dfrac{0.007}{0.010276}\approx0.6812$

Hence, the value of the z-test statistic = 0.6812 .

7 0

3 years ago