-8 here a rhyme my teacher used to help us remember (to the tune of row your boat)
same signs add and keep, different signs subtract, take the sign of the bigger number then you’ll be exact!
Answer:
Your answer is going to be x=4.
Step-by-step explanation:
5x+1=21
-1 -1
(5x)/5=(20)/5
x=4
Answer:
radius ≈ 17.0 units
Step-by-step explanation:
The radius is the distance from the centre of the circle to a point on it.
Calculate the radius r using the distance formula
r =
with (x₁, y₁ ) = (- 6, 1) and (x₂, y₂ ) = (7, 12)
r =
=
=
= ≈ 17.0 ( to the nearest tenth )
Answer:
4√(7^5) and (4√7)^5
Step-by-step explanation:
7^5/4
The above can be expressed as follow: Method 1:
7^5/4
(7^5)^1/4
Recall:
(a^m)^1/n = n√(a^m)
Therefore,
(7^5)^1/4 = 4√(7^5)
Method 2:
7^5/4
(7^1/4)^5
Recall:
(a^1/m)^n = (m√a)^n
Therefore,
(7^1/4)^5 = (4√7)^5
From the illustration above, we can see that 7^5/4 can be expressed as 4√(7^5) and (4√7)^5