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4 years ago

The population of Oregon is about 4,000,000. What is the order of magnitude of this number?

1 answer:

8 0

The order of magnitude is the same thing as saying the scientific notation which is 4x10 to the power of six. The important thing about scientific notation is that there has to be a number only in the tens place but nothing in the hundreds and thousands.

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Trevor measured the town library and made a scale drawing. In real life, the parking lot is 75 meters long. It is 135 centimeter

jasenka [17]

Answer: $9\ cm\equiv 5\ m$

Step-by-step explanation:

Given

The actual length of the parking lot is 75 m

length in the drawing is 135 cm

Here, 75 m is equivalent to 135 cm

Using unitary method

$75\ m\equiv 135\ cm$

$15\ m\equiv 27\ cm$

$9\ cm\equiv \frac{15}{3}=5\ \text{m}$

8 0

3 years ago

Annie wants to eat an entire donut. However, since she only two-years-old, the mother says she can

alexgriva [62]

Answer:

4.19 inches

Step-by-step explanation:

Your goal is to find the circumference of the donut and then divide that by 3 to get 1/3 of the outer edge of the donut.

Circumference is 2 $\pi$ r

The diameter (double the radius) is 4, so radius (r) is 2

2 * pi * 2 = 4 pi = 12.57 (round to hundredth)

12.57/3 = 4.19

keep in mind that dividing by 3 is the same as multiplying by 1/3

5 0

3 years ago

louise skip counts by 4 on a number line to find 5×4.How many jumps should she draw on the number line?

Vadim26 [7]

She should have 5 hops

7 0

3 years ago

Read 2 more answers

Is 4/16 equivalent to 3/5

azamat

No, as if you reduce 4/16 it is 1/4, not 3/5, therefore they are not equivalent.

7 0

4 years ago

Laurissa rolls two number cubes, each with the numbers 1 through 6. Laurissa adds the numbers that appear in the roll. Which two

defon

Answer:

Let's analyze the possible sums of both dices, i will use the notation:

Dice1 + Dice 2 = sum.

also remember that we have 2 dices, with 6 options each.

So the total number of combinations is 6*6 = 36

we have 36 possible outcomes.

I will start at the extremes, the minimum that we can sum is 2, and the maximum is 12, then:

We can have 2 if:

1 + 1 = 2

only one permutation.

and 12 if:

6 + 6 = 12

Again, only one permutation.

so 2 and 12 have the same chance (1 out of 36)

now, to have 3 we can have:

2 + 1 = 3

1 + 2 = 3.

and to have 11

5 + 6 = 11

6 + 5 = 11

Again, 3 and 11 have the same probability (2 out of 36 options)

And now we can see a pattern.

4 and 10 will have the same chance.

5 and 9 will have the same chance

6 and 8 will have the same chance

7 is the only number that has an unique chance (and it has the largest one)

3 0

4 years ago