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3 years ago

HELP PLEASE 18 POINTS

Mathematics

1 answer:

Mrrafil [7]3 years ago

5 0

Answer:

75000 centigrams

Step-by-step explanation:

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Power Standard 7: Real world problemsA local organic farmer sold 8 boxes of peaches and 6 boxesof tomatoes to one customer for $

slavikrds [6]

Answer:

Peaches cost $5 and Tomatoes cost $7 per box.

Step-by-step explanation:

Let p be the price per box of peaches and t the price of a box of tomatoes.So we have the system:

8p + 6t = 82

6p + 7t = 79

Multiply the first equation by 3 and the second by -4:

24p + 18t = 246

-24p - 28t = -316 Adding:

- 10t = -70

t = 7

Substituting for t in the first equation:

8p + 6(7) = 82

8p = 40

p = 5.

3 0

3 years ago

Find the largest interval which includes x = 0 for which the given initial-value problem has a unique solution. (Enter your answ

Ivan

Answer:

$(-\infty,3)$

Step-by-step explanation:

We are given that

$(x-3)y''+4y=x$

$y''+\frac{4}{x-3}y=\frac{x}{x-3}$

y(0)=0

y'(0)=1

By comparing with

$y''+p(x)y'+q(x)y=g(x)$

We get

$p(x)=\frac{4}{x-3}$

$g(x)=\frac{x}{x-3}$

q(x)=0

p(x),q(x) and g(x) are continuous for all real values of x except 3.

Interval on which p(x),q(x) and g(x) are continuous

$(-\infty,3)$ and (3, $\infty)$

By unique existence theorem

Largest interval which contains 0= $(-\infty,3)$

Hence, the larges interval on which includes x=0 for which given initial value problem has unique solution= $(-\infty,3)$

7 0

3 years ago

The cost of a week long vacation in a city has a mean of 1000 and a variance of 1200. The city imposes a tax which will raise al

matrenka [14]

Answer:

The coefficient of variation after the tax is imposed is 0.033

Step-by-step explanation:

Given

$\mu =1000$ --- mean

$\sigma^2 = 1200$ --- variance

$tax = 10\%$

Required

The coefficient of variation

The coefficient of variation is calculated using:

$CV = \frac{\sqrt{\sigma^2}}{\mu}$

After the tax, the new mean is:

$\mu_{new} = \mu * (1 + tax)$

$\mu_{new} = 1000 * (1 + 10\%)$

$\mu_{new} = 1100$

And the new variance is:

$\sigma^2_{new} = \sigma^2 * (1 + tax)$

$\sigma^2_{new} = 1200 * (1 + 10\%)$

$\sigma^2_{new} = 1320$

So, we have:

$CV = \frac{\sqrt{\sigma^2}}{\mu}$

$CV = \frac{\sqrt{1320}}{1100}$

$CV = \frac{36.33}{1100}$

$CV = 0.033$

6 0

3 years ago

Please solve the equation: -2x(-3x2^y)(2y)=?

Blababa [14]

Answer:

6x^2yx2^1+y

Step-by-step explanation:

7 0

2 years ago

How would the number be written in standard form? 30,000+500+70+6

Lisa [10]

30,576 because 30 fills the thousands and 5,7,6 fill the rest

4 0

3 years ago

Read 2 more answers