2 years ago

Helpppppppp plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Mathematics

2 answers:

Ratling [72]2 years ago

5 0

Answer:

45 mph i think

Step-by-step explanation:

sineoko [7]2 years ago

3 0

Answer: D i think

Step-by-step explanation:

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Expand (2x + 3)^5 using the Binomial Theorem and Pascal’s triangle. Show all steps.

kari74 [83]

Answer:

32x⁵ + 240x⁴ + 720x³ + 1080x² + 810x + 243

Step-by-step explanation:

(2x + 3)⁵

₅C₀ (2x)⁵ (3)⁰ + ₅C₁ (2x)⁴ (3)¹ + ₅C₂ (2x)³ (3)² + ₅C₃ (2x)² (3)³ + ₅C₄ (2x)¹ (3)⁴ + ₅C₅ (2x)⁰ (3)⁵

Use Pascal's triangle to find nCr.

$\left\begin{array}{c}1\\1\ 1\\1\ 2\ 1\\1\ 3\ 3\ 1\\1\ 4\ 6\ 4\ 1\\1\ 5\ 10\ 10\ 5\ 1\end{array}\right$

1 (2x)⁵ (3)⁰ + 5 (2x)⁴ (3)¹ + 10 (2x)³ (3)² + 10 (2x)² (3)³ + 5 (2x)¹ (3)⁴ + 1 (2x)⁰ (3)⁵

(2x)⁵ + 15 (2x)⁴ + 90 (2x)³ + 270 (2x)² + 405 (2x)¹ + 243

32x⁵ + 240x⁴ + 720x³ + 1080x² + 810x + 243

7 0

2 years ago

The domestic postage rate for first-class letters weighing 12 oz or less is $0.37 for the first ounce and $0.23 for each additio

tatyana61 [14]

The letter will cost $1.98.

5 0

3 years ago

What is the slope between the points (3, 5) and (-2, -4)

Tamiku [17]

The slope is 9/5! hope this helps!!

6 0

2 years ago

Henry drives at a speed of 80 miles per hour. <br> How long will it take to drive 400 miles?

mart [117]

Answer:

5hrs

Step-by-step explanation:

...................

4 0

2 years ago

a group of 31 friends gets together to play a sport. first people must be divided into teams. each team has to exactly 4 players

azamat

We have the following values:
Total people: 31
People per team: 4
The number of teams will then be:
N = (31) / (4)
N = 7.75
Round to the previous whole number.
N = 7
There are 7 teams.
Answer:
they can make about 7 teams.

3 0

3 years ago