3 years ago

Need help with an exam question

Mathematics

1 answer:

stealth61 [152]3 years ago

4 0

Take a pic with phone and it will give u answer

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An ion has a charge of +7. How far is it from being neutral?

jeka57 [31]

We are given that

An ion has a charge of +7

and a neutral has charge always 0

so, change is charge = ion charge - neutral change

so, we can plug values

change is charge = +7 -0

change is charge = 7

so, option-C..................Answer

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4 years ago

In a foreign country the coins are called parns, arns and darns. Four parns and 1 arn equal 1 darn.Two arns and 1 darn equal 10

leva [86]

Answer:

Step-by-step explanation:

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3 years ago

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2) Subtract and simplify. 11 7\10 − 7 3\10 =

Free_Kalibri [48]

Answer:

4 2/5

Step-by-step explanation:

11 7/10

- 7 3/10

----------------

4 4/10

4 4/10 = 4 2/5

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3 years ago

PLZ HELP ME I NEED HELP AND FAST ⚠️

Liula [17]

Answer:

Yor awnser is C and D.

Step-by-step explanation:

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What is the domain of the cubic function f(x)=10x^3 +18x

sweet [91]

ANSWER

(-∞,+∞)

EXPLANATION

The given polynomial function is:

$f(x)=10x^3 +18x$

The domain refers to all values of x that make the function defined.

Polynomial functions are defined for all real values of x

The domain is the set of all real numbers.

This is written in symbolic representation as

(-∞,+∞)

8 0

3 years ago