For number one, the answer will be C because the ratio between the side and the perimeter of the Pentagon will be 1/5 or 2/10 or 3/15. For number 2, we know that the Pentagon had 5 sides, and the side of it is 8, so the perimeter of this Pentagon will be 8+8+8+8+8 or 40 inches, which is C. Hope it help!
Answer:
D
Step-by-step explanation:
![\frac{\sqrt{35} }{\sqrt{7} } =\frac{\sqrt{5} \times \sqrt{7} }{\sqrt{7} } =\sqrt{5}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B35%7D%20%7D%7B%5Csqrt%7B7%7D%20%7D%20%3D%5Cfrac%7B%5Csqrt%7B5%7D%20%5Ctimes%20%5Csqrt%7B7%7D%20%7D%7B%5Csqrt%7B7%7D%20%7D%20%3D%5Csqrt%7B5%7D)
Answer:
The answer is: ![\frac{x^2-5}{4x+1}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E2-5%7D%7B4x%2B1%7D)
Step-by-step explanation:
We are given:
and ![g(x) = x^2-5](https://tex.z-dn.net/?f=g%28x%29%20%3D%20x%5E2-5)
We need to find
.
Simply divide
and
.
Which equates to:
![(g/f)(x)= \frac{g(x)}{f(x)} =\frac{x^2-5}{4x+1}](https://tex.z-dn.net/?f=%28g%2Ff%29%28x%29%3D%20%5Cfrac%7Bg%28x%29%7D%7Bf%28x%29%7D%20%3D%5Cfrac%7Bx%5E2-5%7D%7B4x%2B1%7D)
This cannot be simplified further, so it is the answer.
R(s + t) = st
Rs + Rt = st
Rs - st = -Rt
s ( R - t) = -Rt
*s = - Rt / (R - t) Multiply through by -1 on the right.
*s = Rt / (t - R) Put in the brackets in your answer. What you have been writing means
s = Rt/r - R you need the brackets. The stars mean that either could be an answer. I think your problem could be the brackets. Now I'm reasonably certain this is correct.
Answer:
Step-by-step explanation:
t1 = a1
t2 = a1 + d
t3 = a1 + 2d
The sum is t1 + t2 + t3 = a1 + a1 + d + a1 + 2d = 3a1 + 3d
Second question
t1 = a1
t2 = a1 + d
t3 = a1 + 2d
t4 = a1 + 3d
...
tn = a1 + (n - 1)*d
Sum = (a1 + a1 + (n- 1)*d) * n / 2
Sum = (2a1 + nd - d) * n / 2
Sum = (2a1*n + n^2*d - nd) / 2