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3 years ago

What is 1.15 rounded to the nearest tenth

Mathematics

1 answer:

KengaRu [80]3 years ago

5 0

1.2 because the 10th place is the first place after the decimal

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What is the distance between -10 and 10 on the number line?

AVprozaik [17]

20. Using absolute value, make (-10) turn into 10 and do 10 + 10 = 20

4 0

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

7. Write a linear equation y = mx + b for the following information: m= 1, b = 4

anzhelika [568]

Answer:

7. y = x + 4

8. y = -3x - 2

Step-by-step explanation:

7. m = 1 , b = 4

y = mx + b will be y = x + 4

8. (1,-5) and (-3,7)

Slope (m) = 7 - (-5) / -3 - 1

= 7 + 5 / -4

= 12 / -4

= -3

y = mx + b will be y = -3x -2

7 0

3 years ago

Pllllsss heeelppp meeeeee

Illusion [34]

Answer:

Aand lol you have any questions or concerns please

8 0

3 years ago

Y= 2x - 1 , y - x = 4

Aleks04 [339]

Answer:

x=5 and y=9

Step-by-step explanation:

Sub 1 into 2

2x-1 - x = 4

x= 4+1

x= 5

y= 2(5)-1

y= 10-1

y= 9

7 0

3 years ago