Which one is it? Plz help
1 answer:
Multiplication and division with the powers of ten
So, when multiply powers of ten, all you have to do add up the powers.
The reverse goes when you are dividing. You would subtract the powers.
9 x 10^7 => 3 x 10^3
The words " how many times as large as " indicates that we are going to divide the two, making it look like this:
Divide the 9 by 3 you get 3
Then subtract 10^3 from 10^7
Therefore, the answer is 3 x 10^4, or A
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Answer:
The correct answer is C.
Step-by-step explanation:
The price of a four-star meal, only $50 per couple decades ago, has since increased 400%.
This means that if the $50 per couple is 100%(decimal 1), the current price is 100%+400% = 500%(decimal 5). So we can solve a rule of three to find the current price of a four-star meal.
1 - 50
5 - x
.
The current price of a four star meal is $250 per couple.
The correct answer is C.
The value of given expression is: 3
<h3>What is exponents and powers?</h3>
Exponent refers to the number of times a number is used in a multiplication. Power can be defined as a number being multiplied by itself a specific number of times.
9*(15)³/45 * /9
= 3²* 3³*5³/5² * 3² * 3² * 5
=
= 3*1
=3
Learn more about exponents and power here:
#SPJ1
Both problems give you a function in the second column and the x-values. To find out the values of a through f, you need to plug in those x-values into the function and simplify!
You need to know three exponent rules to simplify these expressions:
1) The negative exponent rule says that when a base has a negative exponent, flip the base onto the other side of the fraction to make it into a positive exponent. For example,
.
2) Raising a fraction to a power is the same as separately raising the numerator and denominator to that power. For example,
.
3) The zero exponent rule<span> says that any number raised to zero is 1. For example,
.
</span>
Back to the Problem:
Problem 1
The x-values are in the left column. The title of the right column tells you that the function is
. The x-values are:
<span>1) x = 0
</span>Plug this into
to find letter a:
<span>
2) x = 2
</span>Plug this into to find letter b:
<span>
3) x = 4
</span>Plug this into to find letter c:
<span>
Problem 2
</span>The x-values are in the left column. The title of the right column tells you that the function is
. The x-values are:
<span>1) x = 0
</span>Plug this into
to find letter d:
<span>
2) x = 2
</span>Plug this into to find letter e:
<span>
3) x = 4
</span>Plug this into to find letter f:
<span>
-------
Answers:
a = 1
b = </span>
<span>
c = </span>
d = 1
e =
f =
You need to know three exponent rules to simplify these expressions:
1) The negative exponent rule says that when a base has a negative exponent, flip the base onto the other side of the fraction to make it into a positive exponent. For example,
2) Raising a fraction to a power is the same as separately raising the numerator and denominator to that power. For example,
3) The zero exponent rule<span> says that any number raised to zero is 1. For example,
</span>
Back to the Problem:
Problem 1
The x-values are in the left column. The title of the right column tells you that the function is
<span>1) x = 0
</span>Plug this into
<span>
2) x = 2
</span>Plug this into
<span>
3) x = 4
</span>Plug this into
<span>
Problem 2
</span>The x-values are in the left column. The title of the right column tells you that the function is
<span>1) x = 0
</span>Plug this into
<span>
2) x = 2
</span>Plug this into
<span>
3) x = 4
</span>Plug this into
<span>
-------
Answers:
a = 1
b = </span>
c = </span>
d = 1
e =
f =