4 years ago

What is the atomic number of the element represented by the diagrams

Mathematics

1 answer:

ratelena [41]4 years ago

4 0

Answer:where is the diagram so i could help you

Step-by-step explanation:

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Write a division problem that has a 3 digit dividend and a divisor between 10 and 20

posledela

Dividend means the number to be divided, the divisor is the number you divide with.

It sounds like you just need to divide a three-numbered integer by a number between 10 and 20.

Example: Dividend --> 333÷16 <-- Divisor

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3 years ago

Use the rules of exponents to evaluate or simplify.write without negative exponents. 1/4^-2=?

Talja [164]

9514 1404 393

Answer:

4² = 16

Step-by-step explanation:

The applicable rule of exponents is ...

1/a^-b = a^b

So, ...

$\dfrac{1}{4^{-2}}=\boxed{4^2 = 16}$

_____

<em>Additional comment</em>

If you were to evaluate this using the Order of Operations, you would evaluate the exponent first:

1/4^-2 = 1/(1/16)

Then, you would do the division.

1/(1/16) = 16

We sometimes find it convenient to manipulate exponential terms to the form with the smallest positive exponents before we begin the evaluation.

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3 years ago

Haruka hiked several kilometers in the morning. She hiked only 6 kilometers in the afternoon, which was 25%, percent less than s

Semenov [28]

Answer:

14 km

Step-by-step explanation:

6 km in the afternoon

x km in the morning

6= x- 25%

6= 0.75x

x= 6/0.75

x= 8 km

total 6+8= 14 km

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3 years ago

Will mark brainliest geometry proof ............................

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3 years ago

6x-12+2x=3+8x-15 please

andreev551 [17]

$6x-12+2x=3+8x-15 \\ \\ 8x-12=8x-12 \\ \\ 8x-8x=-12+12 \\ \\ \boxed{0=0}$

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3 years ago

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