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Tom [10]
3 years ago
6

Critical thinking write a recursive rule for a sequence where every term is the same.

Mathematics
1 answer:
denpristay [2]3 years ago
3 0
<span>To do this, let f(1) = 5 and f(n) = f(n-1) for n greater than 1. This is recursive rule and each term is the same because it eventually becomes f(1), which is 5.</span>
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What is the average rate of change for the function f(x)=3x^2 -5 on the interval −3 ≤ x ≤ −1 ?
Anestetic [448]

Answer:

-12

Step-by-step explanation:

Let b = -1 and a = -3

The average rate of change = \frac{f(b) - f(a)}{b - a}

f(b) = f(-1) = 3(-1)^2 - 5 = 3 - 5 = -2

f(a) = f(-3) = 3(-3)^2 - 5 =27 - 5 = 22

f(b) - f(a) = -2 - 22 = -24

b - a = -1 + 3 = 2

\frac{f(b) - f(a)}{b - a} = -24/2 = -12

4 0
3 years ago
The table shows the steps for solving the given inequality for x. 7x+16&lt;−5(4−5x)7x+16&lt;−5(4−5x) Select the reason for each
Hoochie [10]
7x +16 < -5(4 - 5x)....given
7x + 16 < -20 + 25x....distributive property
16 < -20 + 18x ... subtraction property
16 + 20 < 18x.....addition property
36 < 18x
36/18 < x.....division property
2 < x
7 0
3 years ago
Read 2 more answers
True or false: for any function, x=f^-1(y), then y=f(x)
kozerog [31]

YES

We can work out the inverse using Algebra. Put "y" for "f(x)" and solve for x:

<span><span>The function: f(x)=2x+3
</span><span>Put "y" for "f(x)": y=2x+3
</span><span>Subtract 3 from both sides:
 y-3=2x
</span><span>Divide both sides by 2:
 (y-3)/2=x
</span><span>Swap sides: x=(y-3)/2</span><span>  
   </span><span><span>Solution (put "f-1(y)" for "x") :</span> <span>f-1(y)</span>=(y-3)/2</span></span>


6 0
3 years ago
Read 2 more answers
Brian and Zack went to the store and bought packs of gum. Brian bought 3 less packs than twice the number zack bought. Together
balu736 [363]

Answer:

  • Zack: 11
  • Brian: 19

Step-by-step explanation:

Let z and b represent the number of packs that Zack and Brian bought, respectively. Then the problem statement tells us ...

  b = 2z -3 . . . . . . . Brian bought 3 fewer than twice what Zack bought

  b + z = 30 . . . . . . they bought a total of 30 packs

Using the first equation to substitute into the second, we have ...

  (2z -3) +z = 30

  3z -3 = 30

  3z = 33 . . . . . . add 3

  z = 11

  b = 2·11 -3 = 22 -3 = 19

_____

<em>Check</em>

  b + z = 19 + 11 = 30 . . . . answer checks OK

Zack bought 11 packs; Brian bought 19 packs of gum.

3 0
3 years ago
Eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Natali [406]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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