Answer:
Area = πr²
Circumference = 2πr
You can use pie as both 22/7 Or 3.14
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
Answer: (2r)⁸ or (2r)∧8
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
Double r = this means that we have to multiply the variable "r" by 2 .(2r)
Then raise the result to the 8th power = this means that the product (2r) is the base and 8 is the exponent.
Mathematically speaking
(2r)⁸ or (2r)∧8
Feel free to ask for more if needed or if you did not understand something.
The answer to this will be,
c. It will terminate.
Y=mx+b
x=number of newspapers
37.5 earned for 5 newspapers
37.5=5m+b
earned 75 and deliverd 20 newpapers
75=20m+b
we have
37.5=5m+b and
75=20m+b
multiply first equaiton by -1 and add to other equaiton
-37.5=-5m-b
<u>75=20m+b +</u>
37.5=15m+0b
37.5=15m
divide both sides by 15
2.5=m
sub back to find b
75=2.5(20)+b
75=50+b
minsu 50 both sides
25=b
y=2.5x+25 is lnear funtion
What happens when a quadratic function touches the x-axis only once? It means that the quadratic function has only one real zero. So which formula should we use? How about the almighty quadratic formula?
So when does the quadratic formula give you only one real zero? When the discriminant is equal to zero!
The discriminant is: b²-4ac
In our quadratic equation that means:
b = (3+m)
a = 4
c = 1
Thus, we need to solve: (3+m)²- 4*(4)*(1) = 0
m²+ 6m + 9 - 16 = 0
m² + 6m - 7 = 0
(m+7)(m-1) = 0
m = -7, 1
That's it! Plug back in and graph to see that it actually works!
