2x4=8 is the expression gets the answer
Answer:
1000
Step-by-step explanation:
The 8 in the tens place is worth 80
The 8 in the hundredths place is worth 0.08
80 ÷ 0.08 = 1000
-Chetan K
Answer:
C) 21
Step-by-step explanation:
a² + 20² = 29² Use Pythagorean Theorem to solve for a
a² + 400 = 841 Solve for the exponents
- 400 - 400 Subtract 400 from both sides
a² = 441 Take the square root of both sides
a = 21
Answer:
495
Step-by-step explanation:
In order to find the sum of the first 18 terms you have to find the 18th term and the first term using the equation given.
a1=3(1)-1 a1=2
a18=3(18)-1 a18= 53
Then plug in 53 for an, 18 for n, and 2 in for a1 in the sum equation: Sn=n/2(a1+an)
Sn=18/2(2+53) Solve for sn= 495
The sum is 41.22 because first you turn all of the fractions into decimals and then it’s easier to add them all together all at once.