Answer:
a =12*sqrt(2)
Step-by-step explanation:
3. The Pythagorean theorem states
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
a^2 +21^2 = 27^2
a^2 +441 =729
Subtract 441 from each side
a^2 +441-441 = 729 -441
a^2 =288
Take the square root of each side
sqrt(a^2) = sqrt(288)
sqrt(xy) = sqrt(x)sqrt(y)
a = sqrt(144)sqrt(2)
a =12*sqrt(2)
19 heavy equipment operators and 20 general laborers
Communtative propertie. belive that you can
Answer:
-1 + 14i.
Step-by-step explanation:
i^2 = -1.
i^4 = i^2 * i^2
= -1 * -1 = 1.
i^3 = i^2 * i = -i.
√−81 = i√81 = 9i.
So
2i^4−5i^3+3i^2+√−81
= 2 - (5 * -i) - 3 + 9i
= -1 + 5i + 9i
= -1 + 14i.
Since the word times means multiplication you have to multiply 2.34 by 3.5 to get 8.19 in a day. Then multiply 8.19 by 7 to get 57.33 pounds. Sorry if I got it wrong, but hope this helps!