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frozen [14]
3 years ago
15

True or False: (x + 3)2 = x2 + 9

Mathematics
1 answer:
malfutka [58]3 years ago
3 0

Answer:

false

Step-by-step explanation:

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64 POINTS AWARDED, PLEASE ANSWER ASAP!!!!!
antoniya [11.8K]

Answer:

Area of rectangle = 40 square units

Step-by-step explanation:

<u>Points to remember</u>

<u>Distance formula</u>

Length of a line segment with end points (x₁, y₁) and (x₂, y₂) is given by,

Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]

Area of rectangle = Length * Breadth

<u>To find the length and breadth</u>

Here a rectangle with vertices at (7, 3), (12, 3), (12, 11), and (7, 11)

Length1 =  √[(x₂ - x₁)² + (y₂ - y₁)²]

√[(12 - 7)² + (3 - 3)²] = √5² = 5

Length2 =  √[(x₂ - x₁)² + (y₂ - y₁)²]

√[(12 - 12)² + (11 - 3)²] = √8² = 8 units

Therefore Length of rectangle = 8 and  

Breadth of rectangle = 5 units

<u>To find the area of rectangle</u>

Area = Length * Breadth

  = 8 * 5 =  40 square units

8 0
3 years ago
Read 2 more answers
Ms. Cannon is a tutor. She charges $ 25 for travel time and $ 35 for each hour, h, she tutors. What expression represents the to
wolverine [178]

Answer:

25 + 35h

Step-by-step explanation:

7 0
3 years ago
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Let’s think about another type of scenario. What if you were told that a bracelet requires 10 beads and 10 minutes to make while
Georgia [21]

Answer:

$425

Step-by-step explanation:

Let x represent the number of bracelets made and let y represent the number of necklace made.

Since the craftsman has 1000 beads to work with, hence:

10x + 20y ≤ 1000    (1)

Also, the craftsman has 1600 minutes, hence:

10x + 40y ≤ 1600   (2)

From ploting equations 1 and 2 on the geogebra online graphing, we can see that the solution to the problem is (40, 30).

Since the bracelet costs $5 and a necklace costs $7.50, hence the maximum revenue is:

Revenue = 5x + 7.5y = 5(40) + 7.5(30) = $425

4 0
3 years ago
Simplify<br> 19 – 1.67x + (–2.4)
Kazeer [188]

Answer: 16.6 - 1.67x

8 0
3 years ago
Express 3/5 as a percent
Mama L [17]

Answer: 60%

Step-by-step explanation:

3/5 times 20 = 60/100

8 0
3 years ago
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