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3 years ago

A rectangle is (2 x + 5) long and (x^2 - 3x + 1) wide. What is its area?

Mathematics

1 answer:

Stolb23 [73]3 years ago

3 0

Area of a rectangle is computed by multiplying its length and its width.

A = L * W
A = (2x+5)(x²-3x+1)
A = 2x(x²) + 2x(-3x) + 2x(1) + 5(x²) + 5(-3x) + 5(1)
A = 2x³ - 6x² + 2x + 5x² - 15x + 5
Group like terms:
A = 2x³ - 6x² + 5x² + 2x - 15x + 5
A = 2x³ - x² - 13x + 5 CHOICE A.

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Every 6th voter gets a button. Every 7th voter gets a sticker. Which voter is the first to receive both items?

MrMuchimi

Answer:

Step-by-step explanation:

Use LCM of 6 and 7 to find a number that is the same:

6 12 18 24 30 36 42

7 14 21 28 35 42

Since 42 shows up in both, the 42th voter gets a button and sticker.

Hope this helped.

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2 years ago

A craftsman makes a circular table with a radius of 55

Rudik [331]

Answer:

Hey mate here is your answer...

Step-by-step explanation:

smaller circular table to be made

with a diameter only half as big... and diameter of big table is (2*55)= 110cm.... So half diameter of big is (110/2)= 55cm

therefore, diameter of smaller table is 55cm and radius of it's (55/2)= 27.5cm

circumference of circle = 2πr

= 2*3.14*27.5

= 172.7 cm = 27.5cm

hope it helps you ❣️

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2 years ago

The monthly rental for an apartment is 412.50 how much would the rent be for a year?

gavmur [86]

Answer:

4950

Step-by-step explanation:

412.50 x 12

412.50 is the mothly rental

12 are the month in a year

so it is 4950

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3 years ago

Change 2.1 to a mixed number

Brut [27]

Answer: 2 $\frac{1}{10}$

Step-by-step explanation:

2.1 is the same as 21/10

which will give 2 $\frac{1}{10}$

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3 years ago

Read 2 more answers

Can someone pls help me with 15 and 16

iragen [17]

Let say c represents for collar
Let e represents for embellishment

5c+2c <= to 1000.

I can’t help you with number 16. Sorry

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3 years ago