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DENIUS [597]
3 years ago
6

I forgot about scientific notation

Mathematics
1 answer:
irina [24]3 years ago
6 0
Only C and D are in scientific notation because the decimal has to be after the 3.
Counting how many places you move the decimal to get it behind the 3 we get 8. This is the exponent.
3.0 x 10^8
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I need help in algebra
mash [69]

Answer: No

Step-by-step explanation:

Because there is more than one 3 in the following ordered pair. If you make this a table it will be easier.

4 0
3 years ago
Read 2 more answers
I really need help asap please
gizmo_the_mogwai [7]
We can use the substitution method to solve this problem.

The second equation is \sf y=2x, so we can plug in 2x for 'y' in the first equation:

\sf 5x-2y=3

\sf 5x-2(2x)=3

Multiply:

\sf 5x-4x=3

Combine like terms:

\sf x=3

This is the x-value of our solution, we can plug this into any of the two equations to find the y-value:

\sf y=2x

\sf y=2(3)

Multiply:

\sf y=6

This is the y-value of our solution. So our entire solution is (3, 6).
5 0
3 years ago
Select all of the following true statements if R = real numbers, I = integers, and W = {0, 1, 2, ...}.
Vinvika [58]

Answer and Step-by-step explanation:

We will begin to solve this problem by defining first what the sets' elements really are.

R consists of real numbers. This means that this set contains all the numbers, rational or not.

Z is composed of whole numbers. Integers include all negative and positive numbers as well as zero (it's basically a set of whole numbers and their negated values).

W, on the other hand, has 0,1,2, and its elements are onward. Those numbers are referred to as whole numbers.

W ⊂ Z is TRUE. Z contains all the numbers as stated earlier, and W is a subset of it.

R ⊂ W is FALSE. Not all numbers are complete numbers. Complete numbers must be rational and represented fractionless. These requirements are not met by those real numbers.

0 ∈ Z is TRUE.  Zero is just an integer so it is a component of Z.

∅ ⊂ R is TRUE. A set i.e null be R subset, and each and every set is a general set. Moreover, there were not single elements in a null set, so it spontaneous became a non empty set subset through description as there is no element of R.

{0,1,2,...} ⊆ W is TRUE. The set on the left is precisely what is specified in the statement for problem for W. (The bar below the subset symbol simply implies that the subset is not rigid, because the set on the left may be equal to the set on the right. Without it, the argument would be incorrect, because a strict subset needs that the two sets not be identical).

-2 ∈ W is FALSE. W's only made up of whole numbers and not their negated equivalents.

4 0
3 years ago
Sarah the cheetah ran 100 meters at a speed of 16.8 meters per second. An olympian ran the 100-meter dash in 9.6 seconds. How mu
prohojiy [21]

Answer:

Sara's speed was 6.4 meters per second faster

Step-by-step explanation:

(Were going to name the olympian steve)

First, we have to find how many <u>meters per second Steve</u> ran. To find this we must divide the number of <u>meters</u> he ran by the <u>amount of time</u> it took him to run all 100 meters.

100 ÷ 9.6 =10.41666667

Since the problem tells us to round to the nearest tenth of a second we round 10.41666667 to 10.4. So now we know how many meters per second Steve ran. Now all we have to do is subtract the number of meters per second Sarah ran, from the number of meters per second Steve ran.

Sarah- 16.8 meters per second

Steve- 10.4 meters per second

16.8-10.4= 6.4

And there you have it! Sarah ran 6.4 meters per second more than Steve. I hope this answer was accurate and helpful. I hope you have an AMAZING day!

6 0
3 years ago
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9 -3(x - 2) + 3x = 9​
olga55 [171]

Answer:

u cant solve it

Step-by-step explanation:

because if u distribute the -3 to x you get -3x, then add 3x and u have 0x to the problem is false cause u cancelled out x

6 0
3 years ago
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