2 years ago

The measure of an exterior angle of a triangle is equal to the sum of the measure of the two ______ interior angles.

Mathematics

1 answer:

Drupady [299]2 years ago

3 0

Answer:

Step-by-step explanation:

The measure of an exterior angle of a triangle is equal to the sum of the measure of the two opposite interior angles.

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When solving a 2 step inequality, when do you flip the inequality sign, i keep getting these questions wrong, pls help, i mark b

vaieri [72.5K]

You flip the signs when you are dividing by a negative value.
-2x+3>15
-2x>15-3
-2x>12
x<12/-2
x<-6
Now to test this
Try putting x in the original equation when it is -5.
-2(-5)+3>15
10+3>15
13>15
This is false because our answer says x is less than -6.
Now any value less than -6 will work so let's go with -7.
-2(-7)+3>15
14+3>15
17>15
This result is True.
Hope this helps out!

3 0

3 years ago

If (a+b)(a-b)=21,a+b=7 and a-b=3 what Is the value of a

topjm [15]

9514 1404 393

Answer:

Step-by-step explanation:

Add the latter two equations and you get ...

(a +b) +(a -b) = (7) +(3)

2a = 10 . . . . . . . . . . . . . . . simplify

a = 5 . . . . . . . divide by 2

8 0