3 years ago

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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Greg earns $14 per hour at his office job, along with a $25 weekly bonus. The following inequality represents his earnings on hi

Neporo4naja [7]

Answer:

Greg worked more than 20 hours.

Step-by-step explanation:

Let's solve the inequality for $h$ so we know how many hours Greg worked:

Step 1. Subtract 25 from both sides of the inequality

$14h+25>305$

$14h+25-25>305-25$

$14h>280$

Step 2. Divide both sides by 14

$\frac{14h}{14} >\frac{280}{14}$

$h>20$

We can conclude that Greg worked more than 20 hours.

3 0

3 years ago

Re-write the quadratic function below in Standard Form y = -(x – 3)2 +8

lisov135 [29]

Answer:

y = -x² + 6x - 1

General Formulas and Concepts:

Algebra I

Standard Form: ax² + bx + c = 0
Expanding by FOIL (First Inside Outside Last)
Combining like terms

Step-by-step explanation:

Step 1: Define equation

y = -(x - 3)² + 8

Step 2: Rewrite

Expand [FOIL]: y = -(x² - 6x + 9) + 8
Distribute -1: y = -x² + 6x - 9 + 8
Combine like terms: y = -x² + 6x - 1

4 0

3 years ago

Samaria has 6 more than three times as many pieces of candy as Sydney. Samaria has 36 pieces of candy. How many does Sydney have

Vlad1618 [11]

Sam=3syd+6 and sam=36, since sam=sam we can say:

3syd+6=36

3syd=30

syd=10

So Sydney has 10 pieces of candy.

5 0

2 years ago

Read 2 more answers

PLEASE HELP!! Factor completely: x2 + 6x + 8

Harman [31]

8(x + 1) Is the answer

7 0

2 years ago

Read 2 more answers

If x = 8 units and h = 5 units, then what is the area of the triangle shown above? A.

lora16 [44]

Answer:

1/2(bh)

A=20

Step-by-step explanation:

6 0

3 years ago