Answer:
-84
Step-by-step explanation:
The formula for the nth term of a geometric progression is
Un = ar^n- 1
The sum of the first six terms of a geometric series (U6) = 21/16
Common ratio = -1/2 ,
a = First term ??
21/16 = a × (-1/2 )^6- 1
21/16 = a ×(-2^-1)^5
21/16 = a × -2^-6
Cross Multiply
16 × a × -2^-6 = 21
a = 21/16 × -2^-6
a = 21/16 ×- 1/2⁶
a = 21/16 × -1/64
a = 21 ÷(-1/4)
a = 21 × -4
a = -84
The first term = 84
Answer:
H. 39.6
Step-by-step explanation:
i promise this is the right answer!
there is a mean, mode, range etc. calculator that can help you!
Answer:
48 grams
Step-by-step explanation:
pretzels : peanuts : cheese sticks
8 : 5 : 1
64 g : ? g : ? g
grams of peanuts = 5*64 / 8 = 40 g
grams of cheese sticks = 64*1 /8 = 8 g
<u>grams of peanuts and cheese sticks</u> = 40 + 8 = 48 grams
Answer:
6 divided by 3/5 is 10
Step-by-step explanation:
I don't know how to do the number line, sorry.
