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3 years ago

OK I need help on this one

Mathematics

1 answer:

Tasya [4]3 years ago

3 0

We wouldn't be able to do this for you because it's referring to YOUR town, not ours. If you're in public school, I'm sure they'd have similar answers than you - so it's hard to help here.

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Triangle ABC has these side measurements: AB = 17 BC = 18 AC = 21 Order the angles of the triangle from largest measure to small

vodka [1.7K]

The angles are

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6 0

2 years ago

Can you please help me with this

gogolik [260]

Answer:

$y = x + 3$

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5 0

2 years ago

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MArishka [77]

Answer:

Step-by-step explanation:

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2 years ago

A town doubles its size every 22 years. If the population is currently 4,500, what will the population be in 88 years?

garik1379 [7]

So, the population will always be 50 percent of the previous population counted.
4,500×1.50^x=y
4,500 is the population that it starts with, while 1.50 is telling that it is increasing by 50%. X is the number of years.
We are trying to find it in 88 years, so we should replace x with 4. Here is the reason, it doubles every 22 years and we are looking 88 years.
4,500×1.50^4= 22,781.25
There can't be .25 of a person, so the answer would be 22,781.

5 0

3 years ago

The length of a rectangle is twice its width. Find its area, if its perimeter is 7 1/3 cm.

Naddika [18.5K]

Answer: " 2.989 cm² " .
__________________________
Explanation:
__________________________
Let "A" represent the "area" ;
"L" represent the "Length" ;
"w" represent the "width" ;
"P" represent the "Perimeter".
_________________________
Note the following equations /formulas for a rectangle:

A = L * w ;
P = 2L + 2w ;

Given: "L = 2w " ;
and: " P = 7 $\frac{1}{3}$ cm" ; Solve for "A" ;
___________________________________________

7 $\frac{1}{3}$ cm = 2L + 2w ;

Divide EACH side by "2" ;
_____________________________
7 $\frac{1}{3}$ cm / 2 = (2L + 2w) / 2 ;

to get:

7 $\frac{1}{3}$ cm / 2 = L + w ;

Given: L = 2w ; rewrite the above equation; substituting "2w" for "L" ;
______________________________________________________
7 $\frac{1}{3}$ cm / 2 = 2w + w ;

7 $\frac{1}{3}$ cm / 2 = 3w ;
______________________________
Note:
______________________________
7 $\frac{1}{3}$ cm / 2 ;

= $\frac{[(3*7) + 1]}{3}$ cm / 2 ;

= $\frac{22}{3}$ cm / 2 ;

= $\frac{22 cm}{3}$ * $\frac{1}{2}$ ;

Note: The "22 cm" cancels to "11 cm" ; and the "2" cancels out to "1" ;

{Since: "(22 cm ÷ 2 = 11 cm)" ; and since: "(2 ÷ 2 = 1)" .

And we can rewrite the expression as:
____________________________________________
$\frac{11 cm}{3}$ * $\frac{1}{1}$ ;

and further simplify:

$\frac{11 cm}{3}$ * $\frac{1}{1}$ ;

=   $\frac{11 cm}{3}$ * 1 ;

=   $\frac{11 cm}{3}$ ;
____________________________________________
Now, we can take the equation:

7 $\frac{1}{3}$ cm / 2 = 3w ;
____________________________________________
and rewrite as:
____________________________________________
$\frac{11 cm}{3}$ = 3w ;

and multiply each side by " $\frac{1}{3}$ " ; to isolate "w" on one side of the equation ; and to solve for "w" ;

$\frac{11 cm}{3}$ * $\frac{1}{3}$ = {3w} * $\frac{1}{3}$ ;

to get:

   $\frac{11 cm * 1}{3*3}$ = w ;

   $\frac{11 cm}{9}$ = w ;

↔ w = $\frac{11}{9}$ cm ;
___________________________________
Given: L = 2w ;

L = 2 * $\frac{11}{9}$ cm ;

L = { $\frac{2}{1}$ * $\frac{11}{9}$ } cm ;

L = $\frac{2*11}{1*9}$ cm ;

L = $\frac{22}{9}$ cm ;
____________________________________
Now, solve for "A" (area):

A = L * w ;

A = $\frac{22}{9}$ cm * $\frac{11}{9}$ cm ;

A = $\frac{22* 11}{9*9}$ cm² ;

A = $\frac{242}{81}
$ cm² ;

A = 2.9876543209876543 cm² ; round to: "2.989 cm² " .
____________________________________________________

3 0

3 years ago