Answer:
CBA = 53°
DBC = 39°
Step-by-step explanation:
You have 2 angles, CBA and DBC.
Together, these form the angle DBA. (See attached image)
We know the following about the 2 angles:
CBA = 8x - 3
DBC = 5x + 4
Like we said, both of these together form the angle DBA. Thus:
DBA = CBA + DBC
Let's put in the values we know, 8x-3, 5x+4, instead of CBA and DBC:
DBA = 8x - 3 + 5x + 4
DBA = 13x - 3 + 4
DBA = 13x + 1
We also know that:
DBA = 92 (from the question)
Let's set our expression 13x + 1 equal to 92.
DBA = 13x + 1
DBA = 92
13x + 1 = 92
Subtract 1 from both sides:
13x = 91
Divide both sides by 13:
x = 91 / 13
x = 7
Now that we know x, we can find what CBA and DBC are.
CBA = 8x - 3
Replace x with 7:
CBA = 8*7 - 3
CBA = 56 - 3
CBA = 53
DBC = 5x + 4
Replace x with 7:
DBC = 5*7 + 4
DBC = 35 + 4
DBC = 39
Answer:
CBA = 53°
DBC = 39°
The answer for A would be 8.5 because if you use a^2+b^2=c^2 you would have 12^2 which equals 144 and you would divide that by two to get 72 and then take the square root to find the side length
The answer for be would be 45 because the sum of all angles in a triangle is 180 and you already know one is 90 and 180-90=90 and because this is an isosceles triangle you know the two bottom angles are equal so 90/2=45 <span />
well i think maggie would be 6
Step-by-step explanation:
6•3=18
18-4=14
14+6=20
2(x + 2) + 2 = 2(x + 3) + 1
2x + 4 + 2 = 2x + 6 + 1
2x + 6 = 2x + 7 - NO SOLUTION
(subtract 2x from both sides, then 6 = 7 FALSE)
2x + 3(x + 5) = 5(x – 3)
2x + 3x + 15 = 5x - 15
5x + 15 = 5x - 15 - NO SOLUTION
4(x + 3) = x + 12
4x + 12 = x + 12 - ONE SOLUTION
4 – (2x + 5) = (–4x – 2)
4 - 2x - 5 = -4x - 2
-2x - 1 = -4x - 2 - ONE SOLUTION
5(x + 4) – x = 4(x + 5) – 1
5x + 20 - x = 4x + 20 - 1
4x + 20 = 4x + 19 - NO SOLUTION
I'm thinking n would be -2 but when I add it stops at 11 and when I put -3 in its place it says 14 so I'm guessing maybe -2.4
