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denis23 [38]
3 years ago
8

Evaluate the expression, 52

Mathematics
1 answer:
maw [93]3 years ago
6 0

\huge \boxed{\mathfrak{Question} \downarrow}

  • Evaluate the expression, \boxed{\underline{\bf \: 5^{2}}}

\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}

  • 5² is nothing but ⇨ <u>5 × 5 = 25.</u>
  • Here the 2 displayed above is the exponent or power of 5. So, we have to square 5. This means that we have to multiply 5 by itself & the product formed <u>(25)</u> is the correct answer.
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When a number x is multiplied by 9, the result is 35 .<br><br> What is the value of x?
svp [43]
<span>a number x is multiplied by 9 : 9x

</span><span>a number x is multiplied by 9, the result is 35 : 9x = 35

solve for x

9x = 35
  x = 35/9
  x = 3 8/9 (3 and 8/9)</span>
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A man is a musician. He charges $50 for each of the first-three hours. Which is $24.95 for each additional hour. Which expressio
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Salma just bought 9 bags of 13 cookies each. She already had 8 cookies in a jar. How many cookies does Salma have now?
mr_godi [17]

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125 cookies

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6 0
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James earned $361.36 for working last week and $347.85 for working this week. What was the total amount he earned?
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3 0
3 years ago
Strands Copper wire from a manufacturer are analyzed forstrenghth and conductivity. The Results from 100 strands are asfollows:S
Thepotemich [5.8K]

Answer and explanation:

Given : Strands Copper wire from a manufacturer are analyzed forstrenghth and conductivity. The Results from 100 strands are as follows :

                                                 Strength Strength

                                                    High             Low

High conductivity                         74                8

Low conductivity                         15                3

To find :

a) If a stand is randomly selected, the probability that is conductivity is high and its strength is high

The favorable outcome is 74

The probability is given by,

P=\frac{74}{100}=0.74

b) If a stand is randomly selected, the probability that its conductivity is low or  strength is low

Conductivity is low A= 15+3=18

Strength is low B= 8+3=11

Conductivity is low and  strength is low A\cap B=3

Probability is given by,

P(A\cup B)=P(A)+P(B)-P(A\cap B)

P(A\cup B)=\frac{18}{100}+\frac{11}{100}-\frac{3}{100}

P(A\cup B)=0.18+0.11-0.03

P(A\cup B)=0.26

c) Consider the event that a strand low conductivity and the event that the strand has a low strength. Are these tow events mutually exclusive?

Since the events the stand has low conductivity and the stand has low strength  are not mutually exclusive, since there exists some cases in which both the  events coincide. i.e. Intersection of both the events exists with probability 0.03.

8 0
3 years ago
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