But don't answer unless you actually can ! 15 pts! a triangle has three angles. the second angle is 20 degrees more than the first. the third angle is 8 degrees more than the second. find all three angles. show your work .

The key to solving this problem lies in representing the unknowns properly.

Let the first angle be a.  Then the second angle, b, is a+20.  The third angle is (a+20)+8.  Now all of the measurements of angle are in terms of a.  Fact:  the sum of all the angles of a triangle is 180 degrees.

Thus, a          +        a+20      + a+20+8  = 180, or:

3a + 48 = 180.

Solve for a by subtracting 48 from both sides:   3a = 132, or a = 44.

The first angle is a = 44 degrees.

The second angle is a+20 degrees, or 64 degrees.

The third angle is  a+20+8 degrees, or 72 degrees.

We must check to ensure that these 3 angles do add up to 180 degrees:

44+64+72 = 180

i would need to see the dot plot : )

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

hope this ! ~