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2 years ago

The sum of two numbers is 18 and their difference is 6.

Mathematics

1 answer:

posledela2 years ago

5 0

Answer:

Large number=12

Smaller number=6

Step-by-step explanation:

Let the two numbers be x and y

x+y=18

x-y=6

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Which function is represented by the table?

choli [55]

Answer:

Choice A

Step-by-step explanation:

You take the x value and plug it into the formula to see if the answer lines up with the table

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3 years ago

Factor 9x 6 – 16y 6 completely.

il63 [147K]

Please use the symbol " ^ " to denote exponentiation: 9x^6 = (___)^2.

Note that 9x^6 = 3^2*(x^3)^2. Thus,

9x^6 = (___)^2 becomes (3x^3)^2.

Then <span>9x^6 – 16y^6 = (3x^3)^2 - (4y^3)^2 = ((3x^3) - (4y^3))[(3x^3) +(4y^3)]</span>

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3 years ago

If 0.142857142857......is expressed in the form m/n, then what is the value<br>of (2m + n)?

frosja888 [35]

Answer:

The value will be: 1,285,713

Step-by-step explanation:

We have the number:

N = 0.142857...

Such that we have 6 decimals after the decimal point that repeat infinitely.

Then let's start by multiplying our number by 1,000,000 (same number of zeros as decimals after the decimal point)

Then we get:

1,000,000*N = 142,857.142857...

Now let's subtract N from both sides:

1,000,000*N - N = 142,857.142857... - 0.142857...

999,999*N = 142,857

Now let's isolate N

N = 142,857/999,999

Here is our number expressed in the form m/n, where:

m = 142,857

n = 999,999

Then the value of (2*m + n) is:

(2*142,857 + 999,999) = 1,285,713

5 0

3 years ago

Find the sum of the first 3030 terms in this geometric series:

Viefleur [7K]

Answer:

I think it might be B. but I am not so sure.

7 0

3 years ago

Read 2 more answers

Imagine a population of birds with an initial size of 100, a per-capita birth rate of 2, and a per-capita death rate of 1 per ye

Soloha48 [4]

Answer:

3200

Step-by-step explanation:

Given that:

The initial population of birds $N_0$ = 100

The time duration t = 5 years

Growth rate (r) = (Birth - Death) rate

= 2 - 1

= 1 / year

∴

using the discrete-time form:

$N_t = N_o (1 + r )^t$

$N_t = 100 (1 + 1 )^5$

$N_t = 100 (2 )^5$

$N_t = 100 \times 32$

$N_t = 3200$

8 0

2 years ago