I need help please!!

Which of the following is a rational number? A 136 B. -V12 lo D TT

Basile [38]

TT is your rational number because either way it’s a TT or A

7 0

3 years ago

Answer 2. Ella was born early in the morning on a Monday. She got married on the 9074th day of her life. What day of the week wa

m_a_m_a [10]

Answer:

Ella got married on a Wednesday.

Step-by-step explanation:

Let's solve this problem by understanding the following:

Each week is composed by 7 days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday.

So 1 week = 7 days;

Because the married day was on the 9074th day of her life, we can find the number of weeks that 9074 days represent:

$\frac{1 week}{7 days} * 9074 days = 1296.285714 weeks$

This means that 9074 days represent 1296.285714 weeks, which can be interpreted as 1296 entire weeks and a fraction of a week (0.285714).

Now let's calculate how many days 0.285714 weeks represent:

$\frac{7 days}{1 week} * 0.285714 weeks = 2 days$

This means that 9074 days are actually 1296 weeks and 2 days, because Ella was born on a Monday, and because after 7 days (1 week) it is Monday again, after 1296 weeks it is Monday, but as we also calculated 2 extra days, then the married day is two days after a Monday, that is a Wednesday.

In conclusion, Ella got married on a Wednesday.

3 0

3 years ago

My professor showed us in class today how to use ode45 to solve a differential equation numerically. i would like to use it on m

Brilliant_brown [7]

Yes, ode45 can be used for higher-order differential equations. You need to convert the higher order equation to a system of first-order equations, then use ode45 on that system.

For example, if you have

... u'' + a·u' + b·u = f

you can define u1 = u, u2 = u' and now you have the system

... (u2)' + a·u2 + b·u1 = f

... (u1)' = u2

Rearranging, this is

... (u1)' = u2

... (u2)' = f - a·u2 - b·u1

ode45 is used to solve each of these. Now, you have a vector (u1, u2) instead of a scalar variable (u). A web search regarding using ode45 on higher-order differential equations can provide additional illumination, including specific examples.

7 0

4 years ago

14 divied by 3/8 equals

astraxan [27]

Answer:

37 1/3

Step-by-step explanation:

14 divided by 3/8=

14*8/3=

37 1/3

5 0

3 years ago

The bottom part of this block is a rectangular prism. The top part is a square pyramid. You want to cover the block entirely wit

yaroslaw [1]

Answer:

Total paper required = 165 cm²

Step-by-step explanation:

Paper required to cover the entire block = (Surface area of the prism at the base - area of the top of the prism) + Lateral surface area of the pyramid

Surface area of the rectangular prism = 2(lb + bh + hl)

(here l, b, h are the length, width and height respectively)

= 2(5×5 + 5×4 + 4×5)

= 2(25 + 20 + 20)

= 2×65

= 130 cm²

Area of the top of the prism = (side)²

= 5²

= 25 cm²

Lateral area of the square pyramid = 4 × Area of one lateral side

= 4 × $[\frac{1}{2}(\text{Base})(\text{Height})]$

= 4 × $[\frac{1}{2}(5)(6)]$

= 60 cm²

Total paper required = (130 - 25) + 60

= 105 + 60

= 165 cm²

7 0

3 years ago