32ft you do 8*2*2*1 to get 32
Answer:
21 girls
Step-by-step explanation:
Boys: girls
5:7
Multiply each number by 3
15: 21
There will be 15 boys and 21 girls
To answer this question we need to find out the nth term
(aka the position-term rule) of this sequence. You'll notice that every term is the previous one multiplied by 2 - it's doubling each time. So we can say that the rule is 2ⁿ, where n is the position of the term in the sequence. Using the laws of exponents, 2ⁿ is equal to 2(2)ⁿ⁻¹. So the answer from the four options is 2(2)ⁿ⁻¹.
Hope this helps!
Subtract 16 to get
x^2 -25 = 0
Factor this as
(x -5)(x +5) = 0
The zero product property tells you the product will be zero when one of the factors is zero.
For x-5 = 0
x = 5
For x+5 = 0
x = -5
The appropriate choice is
3) x=-5 or x=5
Let the first term be a, 4th term be
, difference between terms be d, and sum of first nine terms be
.
= a + 3d
32 = 11 + 3d
3d = 32 - 11
3d = 21
d = 7
= 
= 
= 9(11+28)
= 9(39)
= 325
Sum of first nine terms is 351.