2 years ago

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Mathematics

1 answer:

Sedaia [141]2 years ago

6 0

Did you know the moon has moonquakes.

bruh

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(x+6)(x+3) = x²+6x+3x+18<br> What’s the proof here ?

avanturin [10]

All real numbers

distribute (x+6)(x+3) to get x^2+6x+3x+18

your equation now looks like this:

x^2+6x+3x+18= x^2+6x+3x+18

because the equations are equal, the answer is all real numbers

8 0

2 years ago

The figures below are based on semicircles and squares. Find the perimeter and the area of each shape. Give your answer as a com

irina1246 [14]

Answer:

Part 1) The area of the figure is $A=48\ cm^2$

Part 2) The perimeter of the figure is $P=4(2+3\pi)\ cm$

Step-by-step explanation:

Part 1) Find the area of the figure

we know that

The area of the figure is equal to the area of three squares

$A=3[4^2]=48\ cm^2$

Part 2) Find the perimeter of the figure

we know that

The perimeter of the figure is equal to two times the length side of the square, plus the circumference of six semicircles ( or the circumference of three circles)

Remember that

The circumference of a circle is equal to

$C=\pi D$

where

D is the diameter of the circle

In this problem

$D=4\ cm$

$P=2(4)+3[\pi(4)]=(8+12\pi)\ cm$

simplify

$P=4(2+3\pi)\ cm$

8 0

2 years ago

The first term of an arithmetic sequence is -5, and the tenth term is 13.

Leokris [45]

Answer:

Step-by-step explanation:

Let d be the common difference.

a₁₀ = a₁ + (10-1)d

13 = -5 + 9d

d = 2

5 0

2 years ago

Sum of $12000 from a financing company for 3 years at 15% per annum. What is the total interest he paid in 3 years

Dahasolnce [82]

So there are many factors to this, but lets assume the basics:

-He made equal payments every month for 36 months

assuming that is true, the answer is $2,975.42

Assuming that is NOT true and he made NO monthly payments at all and at the end paid the entire balance, the interest would be $6,250.50

7 0

2 years ago

Read 2 more answers

Last year 64 new houses were built in the neighborhood so far this year 5/8 of them have been sold. How many new houses have bee

Mariana [72]

5/8 of the total has been sold, so we just do 64*5/8=40 houses that had been sold this year. Hope this helped!

7 0

3 years ago