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ss7ja [257]
3 years ago
8

Adding & Subtractiny Add. 1. 3+(-7)

Mathematics
1 answer:
erik [133]3 years ago
3 0

Answer:

\Huge \boxed{-4}

Step-by-step explanation:

To solve this problem, first you have to use adding & subtracting integers from left to right.

First, add & subtract numbers from left to right.

3+(-7)=-4

Therefore, the correct answer is -4.

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Find the value of 5x and 3x+60
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Answer:0 and -20

Step-by-step explanation:

5x=0;

x=0/5.

3x+60=0;

3x= -60;

x= -60/3;

x= -20

5 0
3 years ago
There is a six sided polygon in which the first side is a line, the second side is a line segment, the third side is an arrow wh
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∆ABC has A(-3, 6), B(2, 1), and C(9, 5) as its vertices. The length of side AB is units. The length of side BC is units. The len
leonid [27]

Answer:

AB = 7.07 units

BC = 8.06 units

AC = 12.04 units

Step-by-step explanation:

To find the length for each side of the triangle, apply the distance formula between each pair of vertices.

<u>AB</u>

d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\d = \sqrt{(2--3)^2 + (1-6)^2} \\d = \sqrt{(5)^2 + (-5)^2} \\d = \sqrt{25 + 25} \\d = \sqrt{50} \\d=7.07

<u />

<u>BC</u>

d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\d = \sqrt{(9-2)^2 + (5-1)^2} \\d = \sqrt{(7)^2 + (4)^2} \\d = \sqrt{49 + 16} \\d = \sqrt{65} \\d=8.06

<u />

<u>AC</u>

d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\d = \sqrt{(9--3)^2 + (5-6)^2} \\d = \sqrt{(12)^2 + (-1)^2} \\d = \sqrt{144 + 1} \\d = \sqrt{145} \\d=12.04

4 0
2 years ago
Un tanque de 60 litros de agua se llenó solo hasta los 3 quintos de su capacidad ¿cuántos litros de agua hay en el tanque?
Romashka [77]
180 litros de agua en el tanque
3 0
2 years ago
The expression 2x + 50 represents the elevation above sea level, in meters, of a rock climber after x minutes of climbing. What
vova2212 [387]
We let y equal to the elevation above sea level so that the elevation of the rock climber after x minutes of climbing would be:

y = 2x + 50

His initial height can be calculated when x is equal to zero it is when the climber is not yet climbing. Therefore, the rock climber'sinitial height above sea level would be 50 meters.
7 0
3 years ago
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