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3 years ago

Explain why the decimal moving strategy can be used with SI units, but not with imperial units.

1 answer:

6 0

The SI system is based on the basic 10 scale where as with the imperial units there was no base scale. Most people refer to the Imperial scale as the queen picked up a rock and decided this rock weighs exactly on pound and picked up another and decided it was two.

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There are 20 entries in the chess tournament. How many ways can they finish in first, second,

Romashka [77]

Answer:

6840

Step-by-step explanation:

Here, the order matters (1st, 2nd, and 3rd), so we need to use permutations.

There are 20 people who can get in first place. After that, there are 19 people who can get in second place. Finally, there are 18 people who can get in third place. So:

20 * 19 * 18 = 6840

3 0

4 years ago

Isaac keeps track of the miles per gallon his car gets per week. He has accumulated the following data:

ipn [44]

we know that

A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant

Let

$a1=24 \ a2=24.48\ a3=24.97\ a4=25.47$

$\frac{a2}{a1} = \frac{24.48}{24}= 1.02$

$a2=a1*1.02$

$\frac{a3}{a2} = \frac{24.97}{24.48}= 1.02$

$a3=a2*1.02$

$\frac{a4}{a3} = \frac{25.47}{24.97}= 1.02$

$a4=a3*1.02$

therefore

The common ratio is equal to $1.02$

the answer is

The common ratio is 1.02

4 0

3 years ago

Read 2 more answers

Select all of the factors of x3 + 5x2 + 2x – 8.

gladu [14]

The factors of this polynomial would be (x + 4)(x + 2)(x - 1).

To find these, you first have to start with long division to find the first factor. If you use x + 4 it would look like this.

$\frac{x^{3} + 5x^{2} + 2x - 8}{x + 4}$ = $x^{2} + x - 2$

Now we are left with only $x^{2} + x - 2$ . We can factor this by looking for numbers that multiply to the last number and add to the middle number. 2 and -2 multiply to -2 and add to 1. Therefore, we'll use those in parenthesis in their place.

(x + 4)(x + 2)(x - 1)

5 0

3 years ago

Read 2 more answers

Find the absolute minimum and absolute maximum values of f on the given interval. f(t) = 3 (*sqaure root sign*) t (20 − t), [0,

mafiozo [28]

9514 1404 393

Answer: