Which expressions are equivalent to x
2
+
4
x
2
+4x, squared, plus, 4 ?
Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
x
+
2
i
x
−
2
i
x−2i
x+2i
​
start fraction, x, plus, 2, i, divided by, x, minus, 2, i, end fraction

(Choice B)
B
(
x
+
4
i
)
(
x
−
i
)
−
3
x
i
(x+4i)(x−i)−3xileft parenthesis, x, plus, 4, i, right parenthesis, left parenthesis, x, minus, i, right parenthesis, minus, 3, x, i

(Choice C)
C
(
x
+
2
i
)
(
x
−
2
i
)
(x+2i)(x−2i)left parenthesis, x, plus, 2, i, right parenthesis, left parenthesis, x, minus, 2, i, right parenthesis

(Choice D)
D
(
x
+
i
)
(
x
+
4
i
)
−
5
x
i
(x+i)(x+4i)−5xileft parenthesis, x, plus, i, right parenthesis, left parenthesis, x, plus, 4, i, right parenthesis, minus, 5, x, i

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week

when the daily mileage is greater than 40 miles, unlimited mileage plan will save you money. 40 miles is the break-even point.

step-by-step explanation:

shell's the art director at her local community center. she paid $10 and for each child that attends she earns $4.

for each child she ears $4 that is the slope m = 4

she paid $10, that is the initial amount paid. so 10 is the y intercept b

m =4   and b = 10

y intercept is 10 so the point is (0,10)

we start graph from y intercept (0,10)

slope = 4 . we know slope = rise / run

slope = 4   or 4/1   are same

rise = 4   and run = 1

for rise we move 4 units up and for run we move 1 unit to the right

the graph is attached below

x axis is the number of child she attends

y axis is the amount   she earns