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3 years ago

How is a rational number that is not an integer different from a rational number that is an integer

1 answer:

8 0

Rational # is not integer and rational number is an integer.... sometimes you have to look close to what you read because that might give you the answer

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Samantha Ice creamy sold 67 sundaes with nuts and 15 sundaes without nuts what is the ratio of the number of sundaes without nut

zheka24 [161]

15:82 I have to type this so I can send in the answer

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3 years ago

The explicit rule for a sequence is an=5(−2)^n−1

Murrr4er [49]

Answer:

3) $a_n=-2a_{n-1}$ , $a_1=5$

Step-by-step explanation:

Given that the explicit rule for a sequence is $a_n=5(-2)^{n-1}$ .

Now we need to find about what is the recursive rule for the sequence and match with the given choices to find the correct choice.

1) $a_n=-2a_{n+1}$ , $a_1=5$

2) $a_n=-5a_{n+1}$ , $a_1=2$

3) $a_n=-2a_{n-1}$ , $a_1=5$

4) $a_n=-5a_{n-1}$ , $a_1=2$

Plug n=1 into given formula to get first term

$a_n=5(-2)^{n-1}$

$a_1=5(-2)^{1-1}=5(-2)^{0}=5(1)=5$

base of the exponent part is (-2) so that means we need to multiply -2 to the previous term to get nth term

Hence correct choice is: 3) $a_n=-2a_{n-1}$ , $a_1=5$

7 0

3 years ago

If f(x) = 3x - 1 and g(x) = x + 2, find (f- g)(x).

VMariaS [17]

Answer:

(f-g)(x) would be 2x-3

5 0

3 years ago

In training, Jayden does reps where he bench presses 65 kilograms. How many reps does he have to do to bench press a total of 1

WITCHER [35]

He would have to do 15.384 reps

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4 years ago

a system of equations has infinitely many solutions. if 2y – 4x = 6 is one of the equations, which could be the other equation?

deff fn [24]

<span>A system of equations has infinitely many solutions when the two lines representing the equations coincide. i.e. the two equations are the same or a multiple of each other.
2y - 4x = 6
2y = 4x + 6
2y = 2(2x + 3)
y = 2x + 3
-y = -(2x + 3)
-y = -2x - 3
Hence the other equation is -y = -2x - 3</span>

4 0

3 years ago

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