Answer:
![-\frac{5}{2} ;1.](https://tex.z-dn.net/?f=-%5Cfrac%7B5%7D%7B2%7D%20%3B1.)
Step-by-step explanation:
2x² + 3x-5=0;
![\left[\begin{array}{ccc}x=\frac{-3-\sqrt{3^2+4*5*2}}{2*2} \\x=\frac{-3+\sqrt{3^2+4*5*2} }{2*2} \end{array} \ = > \ \left[\begin{array}{ccc}x=-\frac{5}{2} \\x=1\end{array}](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%3D%5Cfrac%7B-3-%5Csqrt%7B3%5E2%2B4%2A5%2A2%7D%7D%7B2%2A2%7D%20%5C%5Cx%3D%5Cfrac%7B-3%2B%5Csqrt%7B3%5E2%2B4%2A5%2A2%7D%20%7D%7B2%2A2%7D%20%5Cend%7Barray%7D%20%5C%20%3D%20%3E%20%5C%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%3D-%5Cfrac%7B5%7D%7B2%7D%20%5C%5Cx%3D1%5Cend%7Barray%7D)
Answer:
600
Step-by-step explanation:
10 times 10 is 100. A cube has 6 sides. 6 times 100 is 600
Answer:
BA = 25π,
LA = 25√2π,
TA = 25π + 25√2π,
V = 41 and 2 / 3π
Step-by-step explanation:
We need to determine the height here, as it is not given, and is quite important to us. The height is a perpendicular line segment to the radius, hence forming a 45 - 45 - 90 degree triangle as you can see. Therefore, by " Converse to Base Angles Theorem " the height should be equal in length to the radius,
( Height = 5 inches = Radius
______
Now knowing the height, let's begin by calculating the base area. By it's name, we have to find the area of the base. As it is a circle, let us apply the formula " πr^2 "
- Base Area = 25π
______
The lateral area is simply the surface area excluding the base area, the surface area having a formula of " πr^2 + πrl. " Thus, the lateral area can be calculated through the formula " πrl, " but as we are not given the slant height ( l ) we have to use another formula,
-
- Lateral Area = 25√2π
______
And the surface area is the base area + lateral area -
- Surface Area
______
The volume of a cone is 1 / 3rd that of a cylinder, with a simple formula of Base * height. Therefore, we can conclude the following -
- Volume = 41 and 2 / 3π
<span> f(x)=7x+3 and g(x)=9x , what is g(x)-f(x) ?
</span>g(x)-f(x) = 9x - (<span>7x+3)
</span>g(x)-f(x) = 9x - 7x - 3
g(x)-f(x) = 2x - 3
answer is <span>2x-3 (first choice)</span>