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Eddi Din [679]
3 years ago
12

Find the rule. solve for n

Mathematics
1 answer:
max2010maxim [7]3 years ago
5 0

Find the difference between the X and Y values goven:

10 - 1 = 9

12 - 3 = 9

15 - 6 = 9

The difference is 9, so the rule is subtracting 9 from the x value:

y = x -9

Now find Y when x is 20:

y = 20-9

y = 11

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Janie's rectangular backyard measures 1.84 × 102 ft by 98 ft. What is the approximate area of Janie's backyard?
tatuchka [14]

Answer: 5.64 x 10^2 ft^2

Step-by-step explanation: Figure out what 1.84 x 10^2 equals- 184- then add 184+184+98+98 and get 564. then put it in Scientific Notation 5.64 x 10^2 ft^2

5 0
3 years ago
What is the y-intercept of the quadratic function f(x) = (x – 8)(x + 3)? (8,0) (0,3) (0,–24) (–5,0)
DiKsa [7]
The correct answer is:  [C]:  " (0, 24) " .
___________________________________________________________

Explanation:
___________________________________________________________

Given the quadratic function:
___________________________________________________________

          →  "  y = (x <span>− 8) (x + 3) "  ;   </span>←  Note:  Replace the "f(x)" with: "y" ; 

→  Find the "y-intercept".
___________________________________________________________

→  Note:  The "y-intercept" is the coordinate of the point(s) of the graph of the equation at which the graph crosses the "x-axis" when "x = 0" . 

   → So;  we set plug in "0" for "x" into our equation; and solve for "y" ; 

          → " y = (x − 8) (x + 3) " ;

          →   y = (0 − 8) (0 + 3)  ; 

          →   y = (-8) * (3)  ;  
 
          →   y = - 24 ; 
___________________________________________________________

So, the "y -intercept" of the <em><u>given</u></em> quadratic function is:
 
the point at which:  "x = 0 ; y = -24 " ;

      →  that is; the point  the coordinates:  " (0, - 24) " ;
___________________________________________________________
  →  which is:  Answer choice:  [C]:  " (0, - 24) " .
___________________________________________________________
9 0
3 years ago
Read 2 more answers
An angle is made up of 66 one-degree angles. What is the measure of the angle?
liraira [26]

Answer:

66 degrees

Step-by-step explanation:

if there are 66 one degree angles, all alll those together to get 66 degrees in total

7 0
3 years ago
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A forest covers 69,000 acres. A survey finds that 0.6​% of the forest is​ old-growth trees. How many acres of​ old-growth trees
JulijaS [17]

Answer:

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Step-by-step explanation:

To answer this question we have to multiply the percent by the total acres.

Remember that when multiplying percents we have to move the decimal 2 places to the left.

So, the equation looks like this:

69,000 * .006 = 414

Therefore, there are 414 acres that are old-growth trees.

We can check our answer by dividing 414 by 69,000.

414/69000 = .006

.006 * 100 = .6

<em>I hope this helps!!</em>

<em>- Kay :)</em>

5 0
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ipn [44]

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Step-by-step explanation:

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