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babymother [125]
3 years ago
10

Lesson 5 mod1 answer key 7.1

Mathematics
1 answer:
saul85 [17]3 years ago
6 0
On second about to do it
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Use the given nth term formula to compute the first five terms of the sequence.<br> an = 8n^2 − 4n
Ghella [55]

Answer:

0,4,24,60,112

Step-by-step explanation:

an = 8n² − 4n

first 5 terms is a0, a1, a2, a3 and a4

for a0, n = 0,

a0 = 8(0)² − 4(0) = 0

for a1, n = 1,

a1 = 8(1)² − 4(1) = 8-4 = 4

for a2, n = 2,

a2 = 8(2)² − 4(2) = 8(4)- 4(2) = 32-8 = 24

for a3, n = 3,

a3 = 8(3)² − 4(3) = 8(9) − 4(3) = 72 - 12 = 60

for a4, n = 4,

a4 = 8(4)² − 4(4) = 8(16) − 4(4) = 128 - 16 = 112

hence the first 5 terms are

0,4,24,60,112

7 0
3 years ago
Reflect the image over the y-axis and then translate 8 units down. What are the coordinates for C’?
irakobra [83]

Answer:

(-7, -7)

Step-by-step explanation:

1. Let's ONLY focus on point C.

2. The algebraic rule for reflecting across the y-axis is (x, y) -> (-x, y).

  • Since point C is on the coordinate (7,1), when reflecting it across the y-axis, it's going to turn into (-7,1).

3. The algebraic rule for translating 8 units down is (x, y) -> (x, y - 8).

  • Since C is on (-7,1), when we translate it 8 units down, we'll get C' as (-7, -7)

Therefore, the coordinates for C' are (-7, -7).

3 0
3 years ago
How many solutions does the following equation have ? -3x+9-2x=-12-5x?
Maurinko [17]

Answer:

0.....................

5 0
3 years ago
I need help what is 1+1=? I’ll give brainliest to whoever gets it first
ANTONII [103]

Answer:

hmmmm. probably 2? I think it's two

4 0
2 years ago
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Select the correct answer. The Red Sea is widening at a rate of 1.25 centimeters per year. How many years will it take to widen
tangare [24]

Answer:

650

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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