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2 years ago

Rewrite this number in appropriate scientific notation: 69.69

Mathematics

1 answer:

Cloud [144]2 years ago

7 0

Why 69 though????????????????????????

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The map below shows the path that Jin walked this morning. According to his pedometer, the total distance of this path was 2.3 k

max2010maxim [7]

Answer:

5 centimetres = 1 kilometre

Step-by-step explanation:

First add up the distances measured on the map.

1.1+4.8+2.2+3.4=11.5 cm

Based on this, since the number of cm is greater than the number of km, we can figure out that each cm should not be multiplied to get the km, so we can eliminate the first two answers.

Next write an equation to represent finding the scale

x=scale

11.5=2.3x

Now solve for the scale

11.5/2.3=2.3x/2.3

5=x

Therefore the scale is 5 centimetres = 1 kilometre

6 0

3 years ago

Every 2/3 hour, Harris can sew 1/6 pair of jeans. what is the unit rate?

podryga [215]

Here is the set up:

(2/3) ÷ (1/6) = unit rate

You finish.

7 0

3 years ago

A play tent is shown.how much fabric was used to make the front(Base 1=36.5) (Base 2=23). And the height =32

xxMikexx [17]

What do you need helps with?

4 0

3 years ago

Read 2 more answers

A. What is the explicit definition for this sequence?<br><br>b. How far does she run on day 19?

creativ13 [48]

Answer:

(a) $a_n=1+\frac{1}{6}(n-1)$

(b) 4 miles

Step-by-step explanation:

Given:

The sequence of run is an arithmetic sequence.

Miles traveled on day 1 = 1 mile

Miles traveled on day 7 = 2 miles

(a).

Explicit formula for an arithmetic sequence is given as:

$a_n=a_1+(n-1)d\\a_n\to n^{th}\ term\\a_1\to first\ term\\n\to number\ of\ terms\\d\to \textrm{common difference}$

Here, $a_1=1,a_7=2$

So,

$a_7=a_1+(7-1)d\\2=1+6d\\6d=2-1\\d=\frac{1}{6}$

Therefore, the explicit definition of the above sequence is given as:

$a_n=1+\frac{1}{6}(n-1)$

Where, $a_n$ is the miles covered on $n^{th}$ day.

(b)

In order to find the distance covered by her on day 19, we plug in 19 for n in the above formula. This gives,

$a_{19}=1+\frac{1}{6}(19-1)\\\\a_{19}=1+\frac{1}{6}(18)\\\\a_{19}=1+3=4\ mi$

Therefore, the number of miles covered by her on day 19 is 4 miles.

3 0

3 years ago

Find the number of sides of a regular polygon if each interior angle of the polygon is

inn [45]

Answer:

the answer for this question is not found here the answer is 108 degree

7 0

3 years ago