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Sunny_sXe [5.5K]
3 years ago
10

Simplify. Rewrite the expression in the form 7^n7 n 7, start superscript, n, end superscript. \left(7^3\right)^{3}=(7 3 ) 3 =lef

t parenthesis, 7, cubed, right parenthesis, cubed, equals
Mathematics
1 answer:
Lilit [14]3 years ago
6 0

Step-by-step explanation:

We need to write the given expression in the form of 7^n and the expression is (7^3)^3.

The property is : (x^n)^m=x^{nm}

We have, x = 7, n = m = 3

So,

(7^3)^3=7^{3\times 3}\\\\=7^9

Therefore, the value of n is 9.

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Suppose 1% of cotton fabric rolls and 4% of nylon fabric rolls contain flaws. Of the rolls used by a manufacturer, 70% are cotto
Amanda [17]

Answer:

0.019 or 1.9%

Step-by-step explanation:

The probability that a randomly selected roll used by the manufacturer contains flaws is determined by the probability of a flawed cotton roll occurring (1% x 70%) added to the probability of a flawed nylon roll occurring  (4% x 30%) .

P(F) = P(C)*P(F_C)+P(N)*P(F_N)\\P(F) = 0.7*0.01+0.3*0.04\\P(F) = 0.019 = 1.9\%

The probability that a randomly selected roll contains flaws is 0.019 or 1.9%

4 0
4 years ago
Water is an example of a(n) _____.<br> A.)element<br> B.)compound<br> C.)mixture<br> D.)atom
aleksandrvk [35]
<span>The answer is B. compound.
An element is composed of only one kind of atom. You cannot separate molecule into simpler substances. For example, hydrogen (H) and oxygen (O) are elements each made of only one atom. Two or more different atoms bonded to one another are a compound. For example, 2 atoms of hydrogen (H) and 1 atom of oxygen are bonded to one another and form water. Thus, water is compound. Mixtures consist of two or more substances that are not chemically combined. Solutions and colloids are mixtures.</span>
7 0
4 years ago
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Can someone please help me! im stuck on this!!
topjm [15]

Answer:

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Step-by-step explanation:

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Doss [256]

Answer:

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Now, remember that i^2=-1, then

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8 0
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lana66690 [7]

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4 years ago
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