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3 years ago

Please help me in this question!

Mathematics

1 answer:

Lilit [14]3 years ago

7 0

Answer:

n = 5

Step-by-step explanation:

All of the other choices are true except for n = 5, which is a counterexample. $4^{5}$ = 1024, which is greater than the other side as the other side is:

and $4^{2}$ = 16, 16 + 250 = 266

1024 < 266 is definitely false.

Therefore, the counterexample is n = 5.

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$400 is invested for 5 years at 12% p.a. compounded monthly.

Lera25 [3.4K]

Answer:

$ 326.68 interest earned at 5 yrs

Step-by-step explanation:

Period = 1 month Periods = 5 x 12 = 60 periodic interest = .12/12 = .01

400 ( 1 +.01)^60 = 726.68 value in account after 5 years

subtract the original deposit to find the interest earned

726.68 - 400 = 326.68

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2 years ago

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Peggy has twice as many apples as kiwis, and three times as many pears as apples. How many pears does she have, if she has 72 ap

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4 years ago

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Consider the quadratic function f(x)=8x^2-7x+6 what is the constant of the function

Sergio [31]

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It’s the number by itself

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4 years ago

Which expression is equivalent to (2r2+r - 1) – (3r2+48 - 5)?

BigorU [14]

Answer:

$-r^2-3r+4$

Step-by-step explanation:

The question is to simplify the expression $(2r^2+r-1)-(3r^2+4r-5)$

First, we can eliminate the 2nd parenthesis expression by changing signs of all the terms since there is a "-" sign in front. Then we add the "Like Terms". The process is shown below:

$(2r^2+r-1)-(3r^2+4r-5)\\=2r^2+r-1-3r^2-4r+5\\=-r^2-3r+4$

The first answer choices (has some typos) is correct. The correct answer is $-r^2-3r+4$

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3 years ago