Answer:
r = 2
Step-by-step explanation:
We have the formula of 
Now, it is given that 
........ (1)
And we have to find the value of r which satisfy the above equation.
So, 
Now, we have to use the trial method to find the value of r.
For r = 1, 
Hence, r can not be 1.
Now, put r = 2, 
Therefore, r = 2 (Answer)
Answer:
314 flowers
Step-by-step explanation:
In order to find how long the perimeter of the circular garden is, we need to find the circumference of the garden.
The circumference of a circle is radius*2*pi. So, in this case, the circumference would be 200*2*3.14. This equals 1256 inches.
Next, we know that flowers are planted every 4 inches, so all we need to do is to find how many 4-inch segments are in 1256 inches.
1256/4=314
Thus, 314 flowers are needed.
Answer:
2. D. division property of equality
3. B. transitive
Step-by-step explanation:
2. well, we divide both sides by the same factor 3.
3. the same reason as for 4. we are using that if A = B, and B = 30, then A =30 in both lines.
I think it’s b and d. I’m not sure tho I’m so sorry if it’s wrong
Answer:
S22 for the arithmetic sequence is:
First option: 15.4
Step-by-step explanation:
a12=2.4
d=3.4
S22=?
Sn=(a1+an)n/2
n=22
S22=(a1+a22)22/2
S22=(a1+a22)11
ak=aj+(k-j)d
a12=a1+(12-1)d
2.4=a1+11(3.4)
2.4=a1+37.4
Solving for a1: Subtracting 37.4 both sides of the equation:
2.4-37.4=a1+37.4-37.4
Subtracting:
-35=a1
a1=-35
a22=a12+(22-12)d
a22=2.4+10(3.4)
a22=2.4+34
a22=36.4
S22=(a1+a22)11
S22=(-35+36.4)11
S22=(1.4)11
S22=15.4
