The scientists believe the forest will be seriously damaged when 21 or more of the forest's 200 oak trees are infected by oat wilt. According to their model, how many years will it take for 21
of the trees to become infected?
Type the correct answer in the box. Use numerals instead of words. Round your answer to the
nearest tenth.

1260=3*6*7*10=3^2*2^2*7*5 perfect cude = 3^3*2^

step-by-step explanation:

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

139 divided by a number

step-by-step explanation: