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sukhopar [10]
3 years ago
7

Can anyone please help me really struggling

Mathematics
1 answer:
almond37 [142]3 years ago
8 0

Answer:

C 862 square units

Step-by-step explanation:

the length of side of Octogan is given by the square. so length of each side is 15

Area of an Octogan

A=2(1+2)a^2

A=2(1+2)15^2 = 1086.4 square units

A= l X w

A= 15 X 15 = 225 square units

1086.4 - 225 = 861.4 square units

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I need serious help with this equation.​
garri49 [273]

Answer:

First, it’s already telling you that you need to find d, which is the opposite of degree 59. This means you have to do the exact thing for degree 37. Since it’s already telling you to use sine, you need to look at the opposite side of 37 which is 98.4.

So ? is 98.4

Now, you need to find sin 59 / d.

First, plug in sin 98.4 sin (37) in your calculator (make sure it’s in degree setting)

The result is 59.2.

Now, 59.2 = sin 59 / d.

Switch sides like this: d = 59.2 sin (37)

And the answer is approximatley d = 35.6

? = 98.4

d = 35.6

8 0
3 years ago
A student must choose one of the subjects, art, geology, or psychology, as an elective. She is equally likely to choose art or p
labwork [276]

Answer:

P (arts) = 0.25

P (psychology) = 0.25

P (geology) = 0.5

Step-by-step explanation:

Let the probability of choosing art = x

As given that she is equally likely to choose art or psychology and twice as likely to choose geology.

So,

P (arts) = x = P (psychology)

P (geology) = 2x

The sum of the probability = 1

So,

P (arts) + (psychology) + P (geology) = 1

x + x + 2x = 1

<u>x = 0.25</u>

<u>P (arts) = x = 0.25</u>

<u>P (psychology) = x = 0.25</u>

<u>P (geology) = 2x = 2*0.25 = 0.5</u>

5 0
3 years ago
Please help with this its confusing somehow :(​
stealth61 [152]

Answer :- D

Refer to the attached image for solution ❤️

8 0
3 years ago
A function is shown below: f(x) = x3 + 2x2 - x - 2 Part A: What are the factors of f(x)? Show your work. (3 points) Part B: What
Lena [83]
<span>Part C: Plug in any values for x, get the y values, re-write them as (x,y) coordinates and graph.

Sorry, I do not know the other answers, but Part C was easy</span>
4 0
2 years ago
Please, help me find solution
IgorC [24]
4 + 5 = 9
180 ÷ 9 = 20

Sand = 20×4 = 80
Cement = 20×5 = 100
8 0
3 years ago
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