3 years ago

Marking brainliest Need help with this

1 answer:

3 0

Answer:

what......................

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blagie [28]

Answer:

100 is correct answer

Step-by-step explanation:

${10}^{2} \\ = 10 \times 10 \\ = 100$

when ever anything ² , it means that number is multiplied by itself.

in above we multiple 10 with 10 and we get 100.

hope it helped you:)

8 0

4 years ago

romanna [79]

X - the number

$30\% x =42 \\
\frac{30}{100}x=42 \\
\frac{3}{10}x=42 \\
x=42 \times \frac{10}{3} \\
x=\frac{420}{3} \\
x=140$

42 is 30% of 140.

7 0

3 years ago

makvit [3.9K]

Answer:

9.03x10^16---------1.5x10^-7 helium

2.709x10^24-------4.5 nitrogen

1.9264x10^28-------3.2x10^4 hydrogen

4.8782x10^14--------8.1x10^-10 xenon

Step-by-step explanation: i got it right PERIOD PURRRRR

3 0

3 years ago

maw [93]

Answer:

its b

Step-by-step explanation:

because its on usatestprep

4 0

3 years ago

Sauron [17]

which is the question? (4/3)^2 is 16/9

5 0

3 years ago