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Grace [21]
3 years ago
6

What is the factored form of a2 – 121?

Mathematics
1 answer:
Elina [12.6K]3 years ago
5 0
A^2 -121 = a^2 -11^2 = (a-11)(a+11)

so the second choice is right sure 
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What the meaning of the acronym lcm​
Korvikt [17]

Answer:

Least Common Multiple

5 0
3 years ago
Help with 61 and 62 plz
KIM [24]
For no. 62 the answer is A.
4 0
3 years ago
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Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 80 miles per
Deffense [45]

Answer:

1.4 hour, or 1 hr 24 min

Step-by-step explanation:

The trains separate at the rate (80 + 90) mph.

Recall that distance = rate times time, or time = distance / rate.

                                            238 mi

Here, the elapsed time is  -------------- = 1.4 hr, or 1 hr 24 min

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3 0
3 years ago
4x-5=x-1+3x I need help
labwork [276]

Answer:

x = no solutions

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

4x - 5 = x - 1 + 3x

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Combine like terms:                    4x - 5 = 4x - 1
  2. Subtract 4x on both sides:          -5 ≠ -1

Here we see that -5 does not equal -1.

∴ This equation has no solutions.

8 0
2 years ago
The composite figure is made up of three simpler shapes. What is the area of the figure?
Flauer [41]
4 × 3
−−−− = 6cm²
2

6 × 3 = 18cm²

10 × 5 = 50cm²

50 + 18 + 6 = 72cm²
7 0
2 years ago
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