4.That first one sounds familiar; I think I did it yesterday.
The sides don't matter (except that they're equal) so the base angle b satisfies
b + b + 38 = 180
2b = 142
b = 71
Choice a
5.
42 + 42 + v = 180
v = 180 - 84 = 96
choice d
6. That's three acute angles, an acute triangle
7. We need to satisfy the triangle inequality which means the sum of the two smaller sides needs to be bigger than the largest
10+15>24 so choice b
8.
SRT = RTS = 180 - STU
3x - 50 = 180 - 7x
10 x = 230
x = 23
choice a
It would be $15.12.
it would be that because 15% times 100.82= 15.12
hope this helped!
4g and 6b and that's a total of 10 in all so you know it will be 1/2 if its going to be two out of two
Answer:
x = 8
Step-by-step explanation:
To solve for x, you use the Pythagoras Theorem. ==> a² + b² = c², where a and b are the side lengths and c is the hypotenuse
x² + 6² = 10²
Rearrange to make x on its own
x² = 10² - 6²
x² = 100 - 36
x² = 64
x = ±√64
x = ±8
Length can't be a negative hence, x must equal 8