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Yanka [14]
3 years ago
12

Answer #1 plzzzzzzz<3

Mathematics
1 answer:
iogann1982 [59]3 years ago
3 0

Answer:

1,3,5,6.

Step-by-step explanation:

ur welcome

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-5+(-3).I know the answer is -8 but how because a negative plus a negative is a positive.
ira [324]

Answer:

“two negatives = positive” rule works for multiplication and division.

Step-by-step explanation:

-5 + (-3) example

imagine a number line with 0 in the center. From (0) You move left 5 places to (-5) on the number line. Now you move another 3 more to the left (-3) and land on (-8).

You are combining the negatives. I hope this helps.

8 0
2 years ago
Use the law of cosines to find the value of 2*3*4 cos theta.
daser333 [38]
The law of cosines :

A^2 = B^2 + C^2 - 2BC cos A

2^2 = 3^2 + 4^2 -  2 . 3. 4 cos theta

= 21

hope this helps
3 0
3 years ago
Read 2 more answers
Find the midpoint of the line segment with end coordinates of:
Arisa [49]

Answer:

The midpoint of this line segment is (-1.5, -4.5).

Step-by-step explanation:

In finding the midpoint of a line segment we are actually averaging the x- and y-coordinates of the endpoints:

                                             -2 -1

x-coordinate of midpoint = --------- = -3/2 = -1.5

                                                 2

                                              -4 -5

y-coordinate of midpoint = ---------- = -4.5

                                                   2

The midpoint of this line segment is (-1.5, -4.5).

5 0
2 years ago
Write an expression to represent susans age in three years when a represents her present age.
Zarrin [17]
Well, since a is Susan’s current age, we would add three to a to get her age in three years
So our expression would be:
a + 3
4 0
3 years ago
Read 2 more answers
7x - 4 = 24<br> show your work
Debora [2.8K]
Move -4 to the other side
7x=24+4
7x=28
x=4
4 0
3 years ago
Read 2 more answers
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