Answer: -9
Step-by-step explanation: When you're asked to multiply positives and negatives together, the rules are simple.
<em><u>A positive times a positive is a positive.</u></em>
<em><u>A positive times a negative is a negative.</u></em>
<em><u>A negative times a positive is a negative.</u></em>
<em><u>A negative times a negative times a negative is a positive.</u></em>
So for the problem you see here, we will use rule 2 which I have highlighted in bold above which states that a positive times a negative is a negative.
So (+3)(-3) = -9
Se nos dice que Lucía corre 4 millas diarias. Ya que no corre los días domingo, entonces corre 6 días por semana, por lo tanto:
Por lo tanto, Lucía corre 24 millas por semana.
two thousand ten and eight tenths
C
She'd have to have given her more than 48 dollars to receive more than 30 dollars back
It can't be D because that implies she could've received exactly 30 dollars in change and the question states she received more than that.
You can understand this by two ways
1) through congruency rules
It says that triangle ABE is congruent to DCE
So the corresponding angles are equal
Eg
Angle A to Angle D
Angle B to angle C
Angle E to angle E
So they’re asking the angles AEB and DEC (which are equal as per congruency)
Thus you can equate them
4y-15=69
y=21
2) through vertically opposite angles
Since the triangles’ angles are vertically opposite one another, they are equal.
Then you can equate them the same way
Hope this helped!!