9514 1404 393
Answer:
13120
Step-by-step explanation:
The sum of terms of a geometric series is ...
Sn = a1·(r^n -1)/(r -1)
You have n=8, a1=4, r=3, so the sum is ...
S8 = 4·(3^8 -1)/(3 -1) = 2(3^8 -1) = 13,120
Let's solve this equation and put the words with it along the way.
1) 7x = 2(x - 5) [given: this is, well, the problem]
2) 7x = 2x - 10 [Distributive Property: 2 was distributed throughout (x-5)]
3) 5x = -10 [Subtraction Property of Equality: We subtracted 2x on both sides]
4) x = -2 [Division Property of Equality: We divided both sides by 5]
Hope this helps!
Answer:
<u>The altitude or height of the triangle is 6 meters.</u>
Step-by-step explanation:
1. Let's review the information provided to us to answer the question correctly:
Area of a triangle = 60 m²
Base = 20 m
2. What is the altitude (h) of the triangle?
Let's recall that the formula of the area of a triangle is:
Area = (Base * Height)/2
Replacing with the real values, we have:
60 = (20 * Height)/2
60 * 2 = (20 * Height) (Multiplying by 2 at both sides)
120 = 20 Height
Height = 120/20 = 6 meters
<u>The altitude or height of the triangle is 6 meters.</u>
Answer:
the price went up 44.44%
Step-by-step explanation:
200÷450×100
The probability of s<span>electing 2 fully charged batteries in a row from a large batch in which 6% of the batteries are dead is given by:
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