3 years ago

What are Periodic tables

1 answer:

3 0

Periodic table are elements that arranges the chemical elements such as hydrogen, silicon, iron, and uranium according to their recurring properties. ... The seven

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Help with question pls I don't understand

Mazyrski [523]

Answer:

15x^3y+6x^2y^2+9xy^3

Step-by-step explanation:

3xy ( 5x^2 +2xy +3y^2)

Distribute the 3xy to all terms in the parentheses

3xy*5x^2+3xy*2xy+3xy*3y^2

15x^3y+6x^2y^2+9xy^3

6 0

2 years ago

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Which of the following equations is equivalent to log(y)= 3.994 ?

Kisachek [45]

Answer:

The correct answer is option D: $y = 10^{3.994}$

Step-by-step explanation:

Given:

log(y)= 3.994

Solution:

A logarithm base b of a positive number x satisfies the following definition:

$y =log_b(x) => b^y =x$

For $x > 0, b >0, b \neq 1$

Also if no base b is indicated, the base of the logarithm is assumed to be 10 .

Thus, in log(y)= 3.994 base b is not indicated. so its base is assumed to be 10

now

$log_{10}(y)= 3.994$

Then

$y = 10^{3.994}$

4 0

3 years ago

21 + (-21) + (-4) please help me out with this question

max2010maxim [7]

Answer:

-4

Step-by-step explanation:

Adding 21 and -21 cancel each other out so you're left with -4

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3 years ago

Whats the answer, to the question below

NISA [10]

The answer to this problem is 5.

6 0

3 years ago

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Round 299 to the nearest hundred. Enter your answer in the box below.

Troyanec [42]

Answer:

300

Step-by-step explanation:

hundreds tens ones

2 9 9

We look at the tens

It is 5 or higher so we round up the hundreds place

2 becomes 3

300

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3 years ago

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