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2 years ago

6

Write an expression that gives the requested sum. the sum of the first 18 terms of the geometric sequence with first term 3 and

common ratio 2

1 answer:

alina1380 [7]2 years ago

8 0

I got 786432 when I use a(r^n-1)/(r-1)

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A construction crew has repaired 1.37 miles of a highway. The total length of the highway to be repaired is 7.9. How many miles

JulijaS [17]

Answer:

Part A: m+1.37=7.9

Part B: 6.53 miles are left to be repaired.

Step-by-step explanation:

Given,

Length of repaired part = 1.37 miles

Total length to be repaired = 7.9 miles

Miles left to be repaired = m

Part A:

Create an equation to show the relationship between the number of miles repaired and the number of miles left to be repaired, m.

Miles left to be repaired + Length of repaired part = Total length to be repaired

m+1.37=7.9

Part B

How many miles are left to be repaired?

Subtracting 1.37 from both sides

6.53 miles are left to be repaired.

Keywords: length, subtraction

Step-by-step explanation:

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2 years ago

. Multiply (3x+2)(4x-7)

aleksklad [387]

Answer:

12 $x^{2}$ + 29x - 14

Step-by-step explanation:

(3x+2)(4x-7)

Multiply out 3x first then 2

(3x * 4x) - (3x * -7) + (2 * 4x) + (2 * -7)

12 $x^{2}$ - (- 21x) + 8x + ( -14)

12 $x^{2}$ + 21x + 8x - 14 Combine like terms

12 $x^{2}$ + 29x - 14

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3 years ago

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Which of these is the absolute value parent function?

kotykmax [81]

Answer:

Option d. is correct answer.

Step-by-step explanation:

<em>f(x) = [x]</em><em> </em>is the absolute value parent function.

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3 years ago

Can someone actually help me please?

Tamiku [17]

D and B is the anwser

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Round 1400 to the nearest 10

anygoal [31]

Answer:

1395 is the lower bound because 1395 rounded to the nearest 10 is 1400 but 1394 rounded to the nearest 10 is 1390.

Step-by-step explanation:

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3 years ago