All categories

3 years ago

What is the simplest form of (3x+20)²

Mathematics

1 answer:

lozanna [386]3 years ago

4 0

Step-by-step explanation:

(3x+20)² is the same as

(3x+20)(3x+20)

you need to have for different numbers

3x*3x is 9x²

3x*20 is 60x

20*3x is also 60x

20*20 is 400

put it together

9x²+60x+60x+400

simplify to

9x²+120x+400

You might be interested in

Sebastian swam laps every day in the community swimming pool. He swam 45 minutes each day, 5 days each week, for 12 weeks. In th

lord [1]

Answer:

$\text{Average rate}=\frac{\text{40 laps}}{\text{ hour}}$

Step-by-step explanation:

Please consider the complete question.

Sebastian swan laps every day in the community swimming pool. He swam 45 minutes each day, 5 days each week, for 12 weeks. In that time, he swam 1800 laps. What was his average rate in laps per hour?

Let us convert time taken into hours as:

$\text{Days}=5\times 12=60$

$\text{Minutes}=60\times 45$

1 hour = 60 minutes. To convert minutes into hours, we will divide total minutes by 60.

$\text{Hours}=\frac{60\times 45}{60}=45$

Now, we will divide 1800 by 45 to find average rate in laps per hour as:

$\text{Average rate}=\frac{\text{1800 laps}}{\text{45 hours}}$

$\text{Average rate}=\frac{\text{40 laps}}{\text{ hour}}$

Therefore, Sebastian's average rate is 40 laps per hour.

6 0

3 years ago

This is really confusing pls help! :)

stellarik [79]

Number of cubes increases by 3 for each term.

an= 3n+1

4 0

2 years ago

Read 2 more answers

6% as ratio in simplest form.

Kitty [74]

Answer:

3 : 50

Step-by-step explanation:

6% = 0.06

0.06 = 6/100

6/100 = 3/50

3/50 = 3 : 50

6 0

3 years ago

$35,200 at 2% for 2 years

Juli2301 [7.4K]

Answer:

Um 1408

Step-by-step explanation:

2% of 35,200 is 704 and 304*2= 1408

7 0

3 years ago

Read 2 more answers

write and solve an equation to determine the length of a rectangular prism with a width of 4 feet ,a height of 6 feet ,and a vol

Tasya [4]

Answer:

3.5ft

Step-by-step explanation:

To calculate the volume of something, you need to know the formula. Length x width x height. You already know the width, and the height, so you need to find the length.

4ft x 6ft x 3.5ft = 84ft^3

3 0

3 years ago