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ozzi
4 years ago
14

Please help me will mark brain list for correct answers

Mathematics
1 answer:
melisa1 [442]4 years ago
4 0

Answer:

D

Step-by-step explanation:

Total frequency: 3+5+8+6+2+1 = 25

P(8to11) = 8/25

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Which shows the following expression after the negative exponents have been eliminated?
gregori [183]

<u>Answer:</u>

The correct answer option is \frac {a ^ 3 b^4 } {a b^2}.

<u>Step-by-step explanation:</u>

We are given the following expression and we are to figure out which of the given answer options show the expression after the negative exponents have been eliminated:

\frac {a^3 b^{-2}} {a b^{-4}}

When negative exponent changes sign, then it moves from numerator to denominator or from denominator to numerator.

\frac {a^3 b^4} {ab^2}

7 0
3 years ago
Read 2 more answers
6r +9r - 2r - 13n combine like terms.
kolbaska11 [484]

Answer:

13r-13n

Step-by-step explanation:

just add 9r+6r get 15r then subtract it by 2r then you get 13r and you can't subtract unlike terms

8 0
3 years ago
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A sample is selected from a population with a mean of u=100 and a standard deviation of o-20 what is the expected value of m and
igor_vitrenko [27]
N=23...................................
8 0
3 years ago
A number decreased by 30 is the same as 14-3 times the number. What is the number?
mafiozo [28]
I got x=11

solution process: x-30=14-3x

-30=14-4x
-44=-4x
44=4x
11=x
3 0
4 years ago
12. Find the height of the cone shown below if the volume is 3.6 cubic inches. Round your answer to the nearest tenth.
professor190 [17]

Answer:

h = 1.34 inches

Step-by-step explanation:

Given that,

The volume of cone, V = 3.6 cubic inches

Let the radius of cone is, r = 1.6 inches

We need to find the height of the cone. The formula for the volume of a cone is given by :

V=\dfrac{1}{3}\pi r^2 h\\\\h=\dfrac{3V}{\pi r^2}\\\\h=\dfrac{3\times 3.6}{\pi \times 1.6^2}

h = 1.34 inches

So, the height of the cone is equal to 1.34 inches.

5 0
3 years ago
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