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Vaselesa [24]
3 years ago
7

Describe how to write 8,231,000,000 in scientific notation.

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
7 0

Answer:

Step-by-step e you would move the numbers in terms of exponents of 10. To write a number in scientific notation, move the decimal point to the right of the first digit in the number.

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A deck of 40 cards contains 20 blue and 20 red cards. Each color has cards numbered 1 to 20.
Marina CMI [18]

Answer:

A red 5 is chosen from the deck. The card is put back into the deck and the a red card is chosen.

Step-by-step explanation:

An independent event is one whose outcome is not dependent on any other event. There are two types of cards in the deck. If a red card is selected it will be from the series 1 - 20, if the card is put back into deck and then again a red card is selected it will be again from the series 1 - 20. This is an independent event since its outcome is same irrespective of the events.

6 0
3 years ago
The table shows the values of y for each value of x. x y 2 1 3 1 4 -3 3 -3 Part A: Does the table represent a relation that is a
LUCKY_DIMON [66]
Part A:

The given values in form of ordered pairs are:
(2,1), (3,1), (4,-3), (3,-3)

A relation can be a function if one value of x is paired with exactly one value of y. In this case, x value of 3 is paired with two y values 1 and -3. So this relation is not a function.

Part B:

f(h) = 15h + 5
f(8) can be found by substituting h=8 in above equation. 
So,
f(8) = 15(8) + 5 = 125
h represents the number of hours and f(h) represents the earnings of Kylie. So f(8) shows that Kylie earned $125 from 8 hours of work in the cafe

Part C:

For r hours of work, we can write:
f(r) = 15r + 5
So, the ordered pair can represent this relation as:
(r, f(r))
or
(r, 15r+5)
7 0
3 years ago
Matea recorded that water levels in one part of the river fell 1.05 millimeters per year for 2.48 years. Describe how you could
alexandr402 [8]

Answer:

the answer is -13.64 i just took the test and it right promise.

Step-by-step explanation:

mark me as brainliest pls its right

6 0
3 years ago
Read 2 more answers
If 18 is more than 2 times a number is -10, what is the number
AleksAgata [21]

Answer:

-14

Step-by-step explanation:

-10-18=-28 -28/2=-14

7 0
3 years ago
Simply by adding like terms: -7x^2*y*z + 3y*z^2 - z*x^2*y - 4y
Bumek [7]

9514 1404 393

Answer:

  -8x^2·y·z +3y·z^2 -4y

Step-by-step explanation:

It can be helpful to make sure the variables in each term are in alphabetical order. This makes it easier to see "like" terms. The variables in each term are ...

  x^2 y z

  y z^2

  x^2 y z

  y

Only the first and third terms are like terms, so those are the only ones that can be combined. Their coefficients are -7 and -1, so sum to -8. The combined term is of highest degree, so in standard form we list that term first.

  = -8x^2·y·z +3y·z^2 -4y

6 0
3 years ago
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