Answer:
A=1
B=6
C=5
Step-by-step explanation:
0=ax²+bx+c
0= 1x²+6x+5
There is no number in front of x², so you know the coefficient is 1.
The coefficient in front of the x is 6.
The remaining number is 5.
Answer:
320
Step-by-step explanation:
I think you have to subtract the number and I think it will be 320
Use the distance formula to find base and height.
Answer:
103.62 cm squared :)
Step-by-step explanation:
To solve this problem, lets start with the grey area only and essentially we want to treat it like it's own circle. So the formula for circular area is A=pi times r²
so for the radius of the grey region, we will simply add 3 and 4 cm.
3+4=7cm
Then we can plug that into the area equation, which is:
A = (3.14)(7²)
Solve for that and we should get 153.86 cm²
We'll hold onto that for now while we solve for the white circle next:
A = (3.14) (4²)
A = 50.24cm²
Lastly, let's bring back the grey area we found earlier, and subtract the white area from it:
153.86 - 50.24 = 103.62 cm²
hope this helps and good luck~
