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3 years ago

Please answer these questions ....please....

Mathematics

1 answer:

Katena32 [7]3 years ago

6 0

Answer:

The answer is six

Step-by-step explanation:

and yw :D

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The crime rate in New York City has been steadily dropping over the past decades. In 1970, the murder rate was 15.8 per 100,000

mario62 [17]

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------$

$\bf \begin{array}{ccll}
\stackrel{period}{year}&\stackrel{per~10000}{crime}\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
1970&15.8\\
2012&3.5
\end{array}
\implies \cfrac{f(b)-f(a)}{b-a}\implies \cfrac{3.5-15.8}{2012-1970}\implies -\cfrac{12.3}{42}
\\\\\\
-0.2929\frac{\stackrel{per~10000}{crime}}{year}$

5 0

4 years ago

A rectangular room is 12 feet wider than its a long how many 1 ft.² tiles does it take to tile along the inside of the room let

Ludmilka [50]

Answer:

Number of of tiles will be $x^2+12x$ .

Step-by-step explanation:

Given:

let 'x' represent the length of the room.

Width is 12 feet wider than its length.

Width = $x+12$

Area of tiles = $1 ft^2$

We need to find number of tile along the inside of the room.

First we will find Area of room.

Area of room will be equal to length times width.

framing in equation form we get;

Area of room = $x(x+12)= x^2+12x$ sq. ft.

Now Number of Tiles will be equal to Area of room divided by Area of tile.

framing in equation form we get;

Number of Tiles = $\frac{x^2+12x}{1} = x^2+12x$

Hence Number of of tiles will be $x^2+12x$ .

4 0

4 years ago

When a number is doubled, the result is 48. what is the number

maxonik [38]

Just simply divide

48/2= 24

so the answer is 24

I hope this helps!

7 0

3 years ago

Read 2 more answers

Number five Please I really need it

PolarNik [594]

I think the answer is y=6x

5 0

3 years ago

In a data set with a normal distribution the main is 59 and standard deviation is three about what percent of the data live betw

jolli1 [7]

Answer:

81.9%

Step-by-step explanation:

In a data set with a normal distribution the mean is 59 and standard deviation is three about what percent of the data live between 53 and 62

Using z score formula

z = (x-μ)/σ, where

x is the raw score,

μ is the population mean = 59

and σ is the population standard deviation = 3

For x = 53

z = 53 - 59/3

= -2

P-value from Z-Table:

P(x = 53) = 0.02275

For x = 62

z = 62 - 59/3

= 1

P-value from Z-Table:

P(x = 62) = 0.84134

Hence, the probability of the data live between 53 and 62 is

0.84134 - 0.02275

0.81859

Converting to Percentage.= 0.81859

× 100 = 81.859%

Approximately = 81.9%

6 0

4 years ago