The expression in scientific notation is given as follows:
3.5 x 10³.
<h3>What is scientific notation?</h3>
A number in scientific notation is given by:

With the base being
.
For this problem, the expression is given by:

When two factors of a multiplication have the same base and different exponent, we <u>keep the base and add the exponents,</u> hence:

5 x 4.2 = 21, hence the expression is:

When we divide two terms with the same base and different exponents, we keep the base and subtract the exponents, hence:

Which is the simplified expression.
More can be learned about scientific notation at brainly.com/question/16394306
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Answer:
There are 46 more skiers than snowboarder
Step-by-step explanation:
Given
Ratio of Snowboarders to Skiers
On Friday:

On Saturday:

Population = 168
Required
Determine the difference in the number of skiers and snowboarders on Saturday
On Saturday, we have

Calculate Total


Calculate the number of skiers


(Approximated)
Calculate the number of snowboarders


(Approximated)
Calculate the difference


<em>Hence, there are 46 more skiers than snowboarder</em>
Answer:
D. 220.16 Square feet
Step-by-step explanation: The shaded area is the space in the square not filled by the circle. So we need to find the area of the circle. The formula for area of a circle is
. So we fill in this equation with the information we already know:

Simplify the exponents
Multiply

So now we know the area of the circle we have to find the area of the square because the circle is inside the square. It is a simple
which is 1,024. Since we are looking for the shaded area we will subtract the area of the circle from the area of the square because the circle is not shaded.
1024-803.94= 220.16 square feet
Answer:
A and D
Step-by-step explanation:
First you have to divide 165 by 3, which is 55. and then 55 multiplied by 8 is 440. so in 8 hours, they could travel 440 miles.