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3 years ago

What number decreased by 3.5 equals to 12.7 ?

2 answers:

5 0

What number = x

x - 3.5 = 12.7

Isolate the x, add 3.5 from both sides

x - 3.5 (+3.5) = 12.7 (+3.5)

x = 12.7 (+3.5)

x = 16.2

16.2 is your answer

hope this helps

RUDIKE [14]3 years ago

4 0

Let's make an equation. We need to find a number that when 3.5 is subtraced from it is 12.7. The equation would look like.
X-3.5=12.7
Now, we need X by itself, so we need to add 3.5 to both sides.
X=12.7+3.5
X=16.2
If the number is 16.2, let's check.
16.2-3.5=12.7
The number is 16.2.

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2 years ago

In the figure, m and n are rays.

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Answer:

A is correct because 1 and 3 are vertical angles.

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In review, A, B, and D are correct.

I hope this helps you =)

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3 years ago

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Answer:

Option a) u is called the "error term". It is the error we make in prediction

Option d) x is called the independent variable because x is independent from y and u.

Step-by-step explanation:

We are given the following information in the question:

$y = \beta_0 + \beta_1x + u$

where y is the dependent variable, x is the independent variable.

$\beta_0$ : It is the value of y when x is zero, that is y-intercept.

$\beta_1$ : It is the coefficient of x in predicting the dependent variable y.

u is the error term.

An error term represents the margin of error.
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Thus, Option A) u is the error term and Option D) x is called the independent variable because x is independent from y and u are the correct answer.

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3 years ago