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4 years ago

Fine the two consecutive whole numbers the square root is between: √(26) & √(60)

1 answer:

3 0

The consecutive number = 1,2 or 7,8 not 5,8 etc

whole number = 1,6,100

square root of 60 = 7.746

so, if you want to know two consecutive whole numbers b/w swrt of 60
that would be

7 less than 7.6 less than 8

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kaheart [24]

<h2><u><em>Divide and subtract from both sides</em></u></h2>

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3 years ago

Prove that an = 4^n + 2(-1)^nis the solution to

olga nikolaevna [1]

Answer:

See proof below

Step-by-step explanation:

We have to verify that if we substitute $a_n=4^n+2(-1)^n$ in the equation $a_n=3a_{n-1}+4a_{n-2}$ the equality is true.

Let's substitute first in the right hand side:

$3a_{n-1}+4a_{n-2}=3(4^{n-1}+2(-1)^{n-1})+4(4^{n-2}+2(-1)^{n-2})$

Now we use the distributive laws. Also, note that $(-1)^{n-1}=\frac{1}{-1}(-1)^n=(-1)(-1)^{n}$ (this also works when the power is n-2).

$=3(4^{n-1})+6(-1)^{n-1}+4(4^{n-2})+8(-1)^{n-2}$

$=3(4^{n-1})+(-1)(6)(-1)^{n}+4^{n-1}+(-1)^2(8)(-1)^{n}$

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4 years ago

Which expression is equivalent to 3 (5x – 4)?

finlep [7]

Answer: 15x - 12

Steps: 3 (5x - 4)
3 x 5x - 3 x 4
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15x - 12

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3 years ago

Find three different ratios that are equivalent to ratio 3 : 11

Mnenie [13.5K]

Answer:

6:22

9:33

12:44

Step-by-step explanation:

Giben ratio 3:11

Multiplying by 2,

6:22

Multiplying by 3

9:33

Multiplying by 4

12:44

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3 years ago

You went to BW3, your total bill was $56.47, if you want to give an 18% tip, what's your final bill?

aliya0001 [1]

Answer:

The answer is 66.6346 round it to what ever place you need to.

Step-by-step explanation:

Take the 56,47, multiply it by .18, and add that value to 56.47 Hope it helps

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3 years ago

Read 2 more answers