Answer:
The second equation can be used
Step-by-step explanation:
Just plug in the values and the equation should look like this 8^2 + b^2 = 12^2
12 is the hypotenuse to plug that into c
and 8 is just a leg so you can either put it in a or b
Answer:
135 to nearest whole number.
Step-by-step explanation:
∑ 5(4/3)^(k-1) from k = 1 to k = 8.
First term = 5 , second term = 5*4/3
This is a Geometric series with first term a1 = 5 and common ratio r = 4/3.
The sum of n terms = a1(r^n - 1) / (r - 1).
The sum of 8 terms is given by 5 * (4/3)^8 - 1) / ( 4/3 - 1)
= 135 to the nearest whole number.
A^2 + b^2 = c^2
a^2 + (12)^2 = (13)^2
a^2 + 144 = 169
a^2 = 169 - 144
a^2 = 25
Sqrt (a^2) = Sqrt(25)
a = 5
Please mark brainliest if this helps
Answer:
pythagorean theorem
Step-by-step explanation:
a^2+b^2=c^2
7^2+b^2=30^2
14+b^2=900
subtract 14 from both sides
b^2=886
then take the square root of 886
b=29.8
The ladder reaches 29.8 feet up the house
Answer:
Parallel line to a: y=1/4x+1
Perpendicular to line a: y=-4x-3
Neither parallel nor perpendicular to line a
: y=4x-8
Step-by-step explanation:
I just took this test and these were my answers!