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3 years ago

Solve each system by graphing.

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

4 0

There is a site that is called desmos that can help you.
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P(5,-3) Q(2,4) find distance

Alenkinab [10]

Answer: $\sqrt{58}$

The distance between the coordinates of the two points is measured by the Distance formula

Step-by-step explanation:

The distance between two points P(x1,y1) and Q(x2,y2) is measured by Distance formula i.e Distance= $\sqrt{}$ (x2-x1)²+(y2-y1)²

So, the distance between the two points P(5,-3) and Q(2,4) can be measured by

Distance PQ = $\sqrt{}$ (2-5)²+(4-(-3))²

PQ = $\sqrt{}$ (-3)²+7²

PQ= $\sqrt{}$ 9+49

PQ= $\sqrt{}$ 58

So,the distance of PQ is $\sqrt{58}$

7 0

3 years ago

A town's population increases in one year from 50,000 to 58,000. If the population is growing linearly, at a steady rate, the

jolli1 [7]

Answer:

66,000

Step-by-step explanation:

If a relation is linear, then for equal changes in x there are equal changes in y. If in 1 year the population increases by 8,000, then in any 1-year period, the population will also increase 8,000. The population started at 50,000. In 1 year, it became 50,000 + 8,000 = 58,000. At the end of the second year, it will have increased by another 8,000. 58,000 + 8,000 = 66,000.

4 0

3 years ago

First CORRECT answer gets brainly:

pychu [463]

<h2>Answer:</h2><h3>1. D</h3><h3>2. F</h3><h3></h3><h3>Probs wrong</h3>

6 0

3 years ago

Is 188,253,286,682 is divisible by 11

Shalnov [3]

Answer:

Step-by-step explanation:

The rule to see if 11 is divisible is subtract the last digit from a number made by the other digits. If that number is divisible by 11 then the original number is, too. If you apply that rule then you see that it is not divisible.

4 0

3 years ago

There are (n r) different linear arrangements of n balls of which r are black and n-r are white. give a combinatorial explanatio

Vanyuwa [196]

Answer:

$\frac{n!}{r!(n-r)!}$

Step-by-step explanation:

Combinatorial explanation:

The n balls have to be arranged in n positions and the only distinction is where are the black and where white balls are.

We can choose the position of black balls in $\binom{n}{r}$ ways, therefore, white ones are on the remaining positions.

Using binomial we can have explanation written below:

The balls can be arranged in n! possible permutations.

To be precise one particular arrangement includes $r!(n-r)!$ permutations. Since r black balls can be permuted in r! ways and white balls in (n-r)! different orders.

So basically it yields,

$r! \times (n-r)!$ permutations.

So the actual amount is,

$\frac{r!}{(n-r)!}= \binom{n}{r}=\binom{n}{n-r}$

6 0

4 years ago