Answer:
9(5e-3f)
Step-by-step explanation:
so, to start, you want to see what they have in common. the variables are not the same, so you cannot take a variable out; however, 45 and 27 have something in common. they can both be divided by 9! (this is a skill you will have to practice). so, after recognizing this, you can divide both numbers by 9, and you would have 5e-3f. however, we cannot just change that because that is not equal to 45e-27f. so, we make sure we include what we did. because we divided by nine, we are going to put the greatest common factor outside of the numbers after we put them in parentheses. 9(5e-3f). we do this because multiplication is the opposite of division, and so this just shows that if we use the distributive property, it would multiply back out to 45e-27f. I hope this helps!
Answer:
10.659 has 5 significant figures.
Step-by-step explanation:
Any number that is not 0 is a significant figure. There are 4 numbers that are not 0. Then, any 0 that is between two non-zero numbers is significant. The 0 is this number is between 1 and 6, so it is significant. Therefore, all the digits in this number are significant.
Answer:
0.67
Step-by-step explanation:
0.668 is close to 0.67 than 0.66
The angle of elevation : α
tan α = 9/13
tan α = 0.6923
α = tan^(-1) 0.6923
α = 34.69° ≈ 35°
Answer: the angle is 35°