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VashaNatasha [74]
2 years ago
8

387 kilograms = x grams Answer: a. 387,000g b. 38,700g c. 387g d. 3.87g

Mathematics
2 answers:
mixas84 [53]2 years ago
5 0

Answer:

a

Step-by-step explanation:

I kilogram is 1000 grams

Sphinxa [80]2 years ago
5 0
Hello! Im Sezina

The answer is letter A (just multiply the given by 1,000)
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Which expression is equivalent to (2r2+r - 1) – (3r2+48 - 5)?
BigorU [14]

Answer:

-r^2-3r+4

Step-by-step explanation:

The question is to simplify the expression  (2r^2+r-1)-(3r^2+4r-5)

First, we can eliminate the 2nd parenthesis expression by changing signs of all the terms since there is a "-" sign in front. Then we add the "Like Terms". The process is shown below:

(2r^2+r-1)-(3r^2+4r-5)\\=2r^2+r-1-3r^2-4r+5\\=-r^2-3r+4

The first answer choices (has some typos) is correct. The correct answer is  -r^2-3r+4

7 0
3 years ago
How do you do 3x (3X+6) please list how to do in order please. thanks!
Nadusha1986 [10]
Do what?  If you mean to find when it equals zero...

By inspection you can see that if x=0 or 2 the expression is equal to zero...

You multiply each term in the parentheses by the term outside the parentheses...like:

3x*3x+3x*6 which is equal to:

9x^2+18x   If you meant to expand it....

9x(x+2)      If you meant to factor it completely
8 0
3 years ago
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If j and k are intersecting lines, A and B are points on j, and C and D are points on k, how many planes contain points A, B, C,
ValentinkaMS [17]
The correct answer to this question is letter "<span>B. We can't determine from the given information."
</span>
Using the information as stated, "<span>If j and k are intersecting lines, A and B are points on j, and C and D are points on k," the number of planes that contain points A, B, C, and D cannot be determined because of the lack of information.
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7 0
3 years ago
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What is the probability of rolling 4 even numbers on 4 rolls of a dice
hjlf

Answer:

1/16

Step-by-step explanation:

Possible outcomes when rolling a fair die = 1, 2, 3, 4, 5, 6 (i.e 6 possible outcomes)

Possible outcomes when rolling an even number = 2, 4, 6 (i.e 3 possible outcomes)

Hence P (rolling even number on 1 roll) = 3 / 6 = 1/2

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7 0
3 years ago
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Genrish500 [490]

Multi ting a number is like adding the number that many times.

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Then multiplication method:

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3 years ago
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