Select the letter of the correct answer The sun burns 4.5 x 10 tons of hydrogen per second. An hour is 3.6 x 10 seconds. How much hydrogen does the
sun burn in 1 hour?
A 162 x 10
B1.62 x 1010
8.1 x 10
8.1 x 1010

it’s supposed to be -4+45=41

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

need more detail

step-by-step explanation:

lele

11) obtuse

13)right

15) acute