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Studentka2010 [4]
3 years ago
10

What is the value of log2 81?

Mathematics
1 answer:
mestny [16]3 years ago
7 0

6.33985000288

i used a calculator

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6/5

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What is the approximate area of the circle shown below 9.4 cm
aivan3 [116]

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Step-by-step explanation:

A= πr²

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6 0
3 years ago
The mean age of Mr Jasmi,Miss Haslinda and their three children is 38 years. The mean age of their three children is 18 years. C
DedPeter [7]
Answer: 68

Explanation:

Let x be the age of Mr Jasmi
y be the age of Miss Haslinda
a + b + c be the age of the 3 children

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(x + y + a + b + c)/5 = 38

But:
(a + b + c)/3 = 18
a + b + c = 18(3)
a + b + c = 54

Substitute this value to our first equation

(x + y + 54)/5 = 38
x + y + 54 = 38(5)
x + y + 54 = 190
x + y = 190 - 54
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Thus:
Mean age of (mr jasmi and miss Linda) = (x+y)/2

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4 0
2 years ago
A rectangle has a length of (x+10) centimeters and a width of x centimeters. If the perimeter is 32 centimeters, what is the len
I am Lyosha [343]

Given:

Length of rectangle = (x+10) cm

Width of the rectangle = x cm

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The length of the rectangle.

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Where, l is length and w is width.

Substituting the values, we get

32=2((x+10)+x)

32=2(2x+10)

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Subtract 20 from both sides.

32-20=4x

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Divide both sides by

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3+10=13

Therefore, the length of the rectangle is 13 cm.

7 0
3 years ago
The table below shows the distance d(t) in meters that an object travels in t seconds:
Usimov [2.4K]
The answer is B because its going 90m/s and and in 2 seconds its traveled 180 meters which if you add to 60 gives you 240
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3 years ago
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