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4 years ago

What is 8.21 as a mixed number

Mathematics

2 answers:

babymother [125]4 years ago

8 0

8 21/100 is your answer! :)

m_a_m_a [10]4 years ago

4 0

Well first of all we know that 8.21 as a fraction is
821
------
100
but thats not as a mixed number
in order to change it to a mixed number we need to see how many time we can fit 100 into 821
in this case it only fits 8 times so thats our whole number
but 21 is left over! we put it as our numerator and keep 100 the same as our denominator. heres what it looks like now
21
8 --------
100
merry christmas:)

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Find the approximation value of 1104 ÷48= ?

MrMuchimi

Answer:

Step-by-step explanation:

1104 = 2⁴×3×23

48 = 2⁴×3

1104 ÷ 48 = 23

7 0

3 years ago

A large western state consists of 2049 million acres of land. Approximately 40% of this land is federally owned. Find the number

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3 years ago

16/9 is equal to 2 times which fraction?

xxTIMURxx [149]

Answer:

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3 years ago

Read 2 more answers

A country's population in 1994 was 182 million. In 2002 it was 186 million. Estimate the population in 2004 using the exponentia

iogann1982 [59]

$\bf =ae^{kt}\qquad 
\begin{cases}
1994\impliedby \textit{year 0, starting point}\\
t=0\qquad P=182
\end{cases}\implies 182=ae^{k0}
\\\\\\
182=a\cdot e^0\implies 182=a\cdot 1\implies 182=a
\\\\\\
thus\qquad P=182e^{kt}\\\\
-------------------------------\\\\$

$\bf P=182e^{kt}\qquad 
\begin{cases}
2002\impliedby \textit{8 years later}\\
t=8\qquad P=186
\end{cases}\implies 186=182e^{k8}
\\\\\\
\cfrac{186}{182}=e^{8k}\implies ln\left( \frac{93}{91} \right)=ln(e^{8k})\implies ln\left( \frac{93}{91} \right)=8k
\\\\\\
\cfrac{ln\left( \frac{93}{91} \right)}{8}=k\implies 0.0027\approx k\implies \boxed{P=182e^{0.0027t}}$

what's the population in 2004? well, from 1994 to 2004 is 10 years later, so t = 10

plug that in, to get P for 2004

3 0

4 years ago

Solve the following quadratic equation<br>x+12x+36 - 16

Doss [256]

Answer:

x= -2, x= -10

Step-by-step explanation:

x^2 + 12x + 36 = 16

Began by setting this quadratic equation to 0. To do this, in this equation you must subtract.

x^2+12x+20=0

Next, we plug this into the quadratic formula, where a in this case is 1(there is nothing in front of x^2), b is equaled to 12(there is a 12 as the coeefficient of 12x), and c is equaled to 20.

The quadratic formula is as goes:

(-b+-(this means plus or minus)√b^2-4ac)/(2a)

After pluggin in and simplifying, the answer is x= -2 and x= -10

4 0

4 years ago