Two digit means it'll have two numbers, and we already know that one of them is 8, and the other is half of 8. Well half of 8 is 4. So know we know the two digits (8 and 4) so that could be 84 or 48. Well we also know that the number has to be divisible by 8. 84/8=10.5 so that's not it, 48/8=6 that one works perfectly. So the answer is 48 :)
D/t=r
d/r=t
tr=d
we will use
d/t=r
d=480
t=3
480/3=r=160
rate is 160 miles per hour
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B.
Both pairs of opposite sides are parallel</span>
Answer:
34.68
Step-by-step explanation:
PEDMAS: PLEASE EXCUSE MY DEAR AUNT SALLY
PARENTHESIS, EXPONENTS, MULTIPLY, DIVIDE, ADD, SUBTRACT
(4.8+2)×5.1
Multiply first
5.1 x 4.8 = 24.48
2 x 5.1= 10.2
Add,
=34,68
Answer:
a. The common ratio is 0.5
b) The value of the first term is 29
c) The sum of the first 5 terms is 56.1875
Step-by-step explanation:
The nth term of the geometric sequence is a = a, where
The sum of the nth term is S =
∵ The second term of a geometric sequence is 14.5
∴ n = 2
∴ a = 14.5
∵ a = ar
→ Equate the right sides of a by 14.5
∵ ar = 14.5 ⇒ (1)
∵ The fifth term is 1.8125
∴ n = 5
∴ a = 1.8125
∵ a = a
→ Equate the right sides of a by 14.5
∵ a = 1.8125 ⇒ (2)
→ Divide equation (2) by equation (1)
∵ =
∴ r³ = 0.125
→ Take ∛ for both sides
∴ r = 0.5
a. The common ratio is 0.5
→ Substitute the value of r in equation (1) to find a
∵ a(0.5) = 14.5
∴ 0.5a = 14.5
→ Divide both sides by 0.5
∴ a = 29
b) The value of the first term is 29
∵ n = 5
∴ S =
∴ S = 56.1875
c) The sum of the first 5 terms is 56.1875