Answer:
can't be factored
Step-by-step explanation:
remember the method of factoring
- Find two numbers that multiply to give ac and add to give b.
- Rewrite the middle with those numbers
- Factor the first two and last two terms separately
let's try to do the first step
to figure out b we two factor of 10 that add up to -3
factor of 10:
likewise
as you can see there's no factor that add up to -3 and multiply to give 10
hence,
the expression can't be factored
Answer:
Choice A.
Step-by-step explanation:
tan < ABC = 60/40
So m < ABC = 56.31 degrees.
This makes m < DBC = 56.31 / 2 = 28.15 degrees
tan 28.15 = DC / 40
DC = 40 tan 28.15
= 21.407 ft.
Answer:
1.0915 × 10
^9
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10
. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
Add the two numbers together and divide the sum by 2.
For example, if you have the set of numbers 1, 3, 15, 17, 19, 21, the median will be between 15 and 17. 15 + 17 = 32. 32 ÷ 2 = 16. 16 would be the median.
