I hope this helps you
Surface Area= 2.pi.r.h+2.pi.r^2
Surface Area =2.pi.3/2.10+2.pi. (3/2)^2
Surface Area =30pi+4,5.pi
Surface Area =34,5.pi
C......................................
Answer:
g = 1000K
Formula: Multiply the amount of kilograms with 1000 to convert it into grams
Step-by-step explanation:
Kilo stands for 10³ or 1000. So, a kilogram means one thousand grams. This means that if you ever want to get back to grams from kilograms, all you need to do is multiply the number of kilograms by 1,000.
Number of grams = Number of kilograms x 1000
g = 1000K
<u>Answer:</u>
Option C. The solution for the system of equations is (-1,7) and (-4,13)
<u>Solution:
</u>
The equation for the system given is,
![y = -2x + 5](https://tex.z-dn.net/?f=y%20%3D%20-2x%20%2B%205)
![y=x^{2}+3 x+9](https://tex.z-dn.net/?f=y%3Dx%5E%7B2%7D%2B3%20x%2B9)
Now we can write,
![-2 x+5=x^{2}+3 x+9](https://tex.z-dn.net/?f=-2%20x%2B5%3Dx%5E%7B2%7D%2B3%20x%2B9)
![x^{2}+3 x+9+2 x-5=0](https://tex.z-dn.net/?f=x%5E%7B2%7D%2B3%20x%2B9%2B2%20x-5%3D0)
![x^{2}+5 x+4=0](https://tex.z-dn.net/?f=x%5E%7B2%7D%2B5%20x%2B4%3D0)
(//simplifying)
![x(x+4) +1(x+4) = 0](https://tex.z-dn.net/?f=x%28x%2B4%29%20%2B1%28x%2B4%29%20%3D%200)
![(x+4)(x+1) = 0](https://tex.z-dn.net/?f=%28x%2B4%29%28x%2B1%29%20%3D%200)
![x = -4 \ or -1](https://tex.z-dn.net/?f=x%20%3D%20-4%20%5C%20or%20-1)
When ![x = -4, \ then \ y = -2\times(-4) + 5 =13](https://tex.z-dn.net/?f=x%20%3D%20-4%2C%20%5C%20then%20%5C%20y%20%3D%20-2%5Ctimes%28-4%29%20%2B%205%20%3D13)
When
So, solution is C, (-4,13) and (-1,7)
Answer:
30 people
Step-by-step explanation:
First, calculate what number 75% is of 250. You then should get a total of 30.
Hope this helped ! :D
( apologies if I got it wrong)