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Salsk061 [2.6K]
3 years ago
15

Let “a” represent Andrew’s age TODAY. Write an expression to represent the situation. Andrew’s age in 4 years.

Mathematics
1 answer:
serious [3.7K]3 years ago
7 0
Answer: 4a

Explanation If ‘a’ represents his age today, and you have to find his age in four years you take 4 multiplied a. (4 x a) putting it together and you would get 4a
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What is the coefficient of x in the expression?<br><br> 6x + 9y + 15z
givi [52]

Answer: 6

A coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression.

In this case we want to find the coefficient that has x. 6 is the only coefficient in the expression 6x + 9y + 15z that has the coefficient of x.

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6 0
3 years ago
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What sign of a null hypothesis must always include?
IrinaVladis [17]

Answer:

Option d - Equality

Step-by-step explanation:

To find : What sign of a null hypothesis must always include?

Solution :

The Null hypothesis is defined as a statement about the population that either is believed to be true or is used to put forth an argument unless it can be shown to be incorrect beyond a reasonable doubt.

The Null hypothesis represent by H_o

H_o always has a symbol with an equal in it.

Therefore, Option d is correct.

Equality sign of a null hypothesis must always include.

5 0
3 years ago
I need help on this parallelograms math problem.
Andrews [41]

w=37

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3w+69=180 combine like terms and subtract 69 from both sides

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w=37

5 0
3 years ago
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