Answer:
i think its a
Step-by-step explanation:
im so sorry if im wrong, also start using m4thway for problems like these! it shows you the steps and everything.
(the 4 is an a bc they wouldnt let me put the name of it)
This is the concept of quadratic equations, to find out whether the two expressions we need to expand each of them:
(x)=(25+10x)(300-36x)
(x)=25(300-36x)+10x(300-36x)
(x)=7500-900x+3000x-360x^2
(x)=7500+2100x-360x^2
Expanding equation 2?
(x)=(100+20x)(100-12x)
(x)=100(100-12x)+20x(100-12x)
(x)=10000-1200x+2000x-240x^2
(x)=10000+800x-240x^2
considering the lead coeffienct
7500+2100x-360x^2≠10000+800x-240x^2
Answer:
3.45
Step-by-step explanation:
pretty sure
Answer:
![\huge\boxed{D)\ 0.7241}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7BD%29%5C%200.7241%7D)
Step-by-step explanation:
![cosine=\dfrac{adjacent}{hypotenuse}\\\\\text{We have}:\\\\adjacent=21,\ hypotenuse=29\\\\\text{Substitute:}\\\\\cos X=\dfrac{21}{29}=21:29\approx0.7241](https://tex.z-dn.net/?f=cosine%3D%5Cdfrac%7Badjacent%7D%7Bhypotenuse%7D%5C%5C%5C%5C%5Ctext%7BWe%20have%7D%3A%5C%5C%5C%5Cadjacent%3D21%2C%5C%20hypotenuse%3D29%5C%5C%5C%5C%5Ctext%7BSubstitute%3A%7D%5C%5C%5C%5C%5Ccos%20X%3D%5Cdfrac%7B21%7D%7B29%7D%3D21%3A29%5Capprox0.7241)
Answer:
answer is 25-(38/8) that is 20.25 pages or 81/4 pages