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aksik [14]
3 years ago
14

How is 0.9 the simplification to 90/100

Mathematics
1 answer:
ANTONII [103]3 years ago
5 0
The fraction 90/100 is equivalent 1 to 9/10.The fraction 90/100 This is a PROPER FRACTION once the absolute value of the top number or numerator ( 90) is smaller than the absolute value of the bottom number or denominator (100) 
This fraction 90/100 is equal to 90<span>÷100 and can also be expressed in decimal  form as 0.9</span>
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Find the numbers a, b and c if the polynomial x3−18x2+24xb−c is the cube of the binomial x+2a.
mojhsa [17]

Answer:

a=-3\\ \\b=\dfrac{9}{2}\\ \\c=216

Step-by-step explanation:

Use formula

(u+v)^3=u^3+3u^2v+3uv^2+v^3.

Hence,

(x+2a)^3=x^3+3x^2\cdot 2a+3x\cdot (2a)^2+(2a)^3=x^3+6ax^2+12a^2x+8a^3.

This expression is equal to

x^3-18x^2+24bx-c,

so we can equate the coefficients at powers of x:

x^3:\ 1=1\\ \\x^2:\ 6a=-18\Rightarrow a=-3\\ \\x:\ 12a^2=24b\Rightarrow b=\dfrac{9}{2}\\ \\1=x^0:\ 8a^3=-c\Rightarrow c=-8\cdot (-3)^3=216.

6 0
4 years ago
What is the area of the figure
BigorU [14]

Answer:

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Step-by-step explanation:

6 0
3 years ago
In the year 2000, the population of Mexico was about 100 million, and it was growing by 1.53% per year. At this growth rate, the
N76 [4]
111=100(1.0153)^x
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X=log(111÷100)÷log(1.0153)
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6 0
3 years ago
Read 2 more answers
Can anyone help ? :) thanks
den301095 [7]
The product of 5 x 2 is 10, this is the same as adding 2 to 2 5 times brainliest pls
3 0
3 years ago
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A six-sided die is rolled 120 times. Fill in the expected frequency column. Then, conduct a hypothesis test at the 5% level to d
borishaifa [10]

Answer:

Die is not fair given that  Pvalue< 0.05, hence we reject Null hypothesis

a) H0: Die = fair

b) Ha : Die ≠ fair

c) df = 5

Step-by-step explanation:

The expected frequency of every face values = 20

a) state Null hypothesis

H0: Die = fair

b) Alternate Hypothesis

Ha : Die ≠ fair

c) degree of freedom

df = ( n - 1 )

   = ( 6 - 1 ) = 5

n = sample size ( number of faces a die has )

Note : After conducting hypothesis test

Pvalue ≈  0.0026

test statistic ≈ 18.30

Hence we can conclude that die is not fair given that  Pvalue < 0.05, hence we reject Null hypothesis

5 0
4 years ago
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