Puzzle in the picture. the answer should be 23, explain how you did it

Mathematics

1 answer:

Delvig [45]3 years ago

8 0

Step-by-step explanation:

try this option, all the details are in the attachment.

Note, the nine numbers. used in the solution are: 1, 2, 3, 4, 5, <u>6,</u> 7, 8 and 9.

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What equation represents a population of 300 animals at the crease and an annual rate of 23%

vodka [1.7K]

Answer:

Step-by-step explanation:

Given initial population of animals = 300 animals

If the population increases by 23% annualy, yearly increment will be expressed as:

Yearly increment = 23% of 300

Yearly increment = 0.23*300

Yearly increment for = 69

Let the total number of years of be x

Increment after x years = 69x

Increase in population of animals after x years with an annual rate of 23% = Initial population + Increment after x years

= 300 + 69x

<em>Hence, the equation represents a population of 300 animals at the increase and an annual rate of 23% is expressed as 300 + 69x</em>

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4 years ago

There are 10 coconuts at the base of your tree. The coconuts are falling off the tree at a rate of 6 coconuts per week. Assume t

hoa [83]

Well the ansswer should be 300

4 0

4 years ago

Read 2 more answers

Will mark brainliest

Novosadov [1.4K]

Using the given definition and $\Delta x=\frac{0-(-2)}n=\frac2n$ , we have

$\displaystyle \int_{-2}^0 (7x^2+7x) \,dx = \lim_{n\to\infty} \sum_{i=1}^n \left(7\left(-2+\frac{2i}n\right)^2 + 7\left(-2+\frac{2i}n\right)\right) \frac2n \\\\ ~~~~~~~~ = \lim_{n\to\infty} \frac2n \sum_{i=1}^n \left(14 - \frac{42i}n + \frac{28i^2}{n^2}\right)$

Recall the well-known power sum formulas,

$\displaystyle \sum_{i=1}^n 1 = \underbrace{1 + 1 + 1 + \cdots + 1}_{n\,\rm times} = n$

$\displaystyle \sum_{i=1}^n i = 1 + 2 + 3 + \cdots + n = \frac{n(n+1)}2$

$\displaystyle \sum_{i=1}^n i^2 = 1 + 4 + 9 + \cdots + n^2 = \frac{n(n+1)(2n+1)}6$

Reducing our sum leads to

$\displaystyle \int_{-2}^0 (7x^2+7x) \,dx = \lim_{n\to\infty} \frac2n \left(\frac{7n}3 - 7 + \frac{14}{3n}\right) = \lim_{n\to\infty} \left(\frac{14}3 - \frac{14}n + \frac{28}{3n^2}\right)$