What is the total area of the following composite figure?

Mathematics

1 answer:

Rina8888 [55]2 years ago

4 0

Step-by-step explanation:

there is a rectangle and an octagon within

area of rectangle = 8*9 = 72

there are 4 right angled triangles

area of one such triangle = .5 × 9 = 4.5

total area of triangles = 18

area of octagon = 72-18 = 54 m^2

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To estimate the number of people in Springfield, population 10,000, who have a swimming pool in their backyard, 250 people were

Andrei [34K]

Answer:

2400 people

Step-by-step explanation:

Let x be the number of people who had a swimming pool in the population of 10,000,

Thus, the ratio of people who had swimming pool to the total population = $\frac{x}{10000}$

Since, out of 250 people 60 had swimming pool,

So, the ratio of the people who had swimming pool to the total population = $\frac{60}{250}$

$\because \frac{x}{10000}=\frac{60}{250}$

$\implies 250x=600000$

$\implies x=\frac{600000}{250}=2400$

Hence, 2400 people in the city might one expect to have a swimming pool.

First option is correct.

8 0

3 years ago

They told her they charge $45 to install the cable box and $60 each month for the service.

Nady [450]

The answer is 2,700
This is because

60
x45
------------
300
+2400
--------------

Or Use Partial Products

60. 0. 1.0x40
___________. 2.60x40
I2400 I. 30. I.
40I. I. I. 3.0x40
|---------I----------I. 4.0x5
5I. 0. I. 0. I
l____ I______I
I hope this helped because this was a lot and I mean a lot of work

3 0

3 years ago

-72 = -8(11 + s)<br> what value of s is a solution to this equation ?

atroni [7]

The value of s would be -2

So -2=s

4 0

3 years ago

Multiply

dsp73

The answer is A. 2x^2+11x^3+12x^2-10x-8