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victus00 [196]
2 years ago
9

Which of the following represents a solution to the equation d3 - 343?

Mathematics
1 answer:
Levart [38]2 years ago
3 0
I don’t see any multiple choice but d3 -343 is factored as (d-7)(d^2+7d+49)
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Find the area of the equilateral triangle.if its perimeter is 24cm​
mezya [45]

Answer:

16√3 cm²

Step-by-step explanation:

The perimeter of a triangle is the sum of its all three sides. Since this is an equilateral triangle, all sides are equal.

Let's consider one side of the triangle to be 'x'

Givent that, the perimeter is 24cm,

The equation should be x + x + x = 24

⇒3x = 24

∴ x = 8 cm

To find the area of the triangle, we need to find the height, and for that, we can use trigonometry.

Since it is an equilateral triangle, all angles are exact 60°.

let's draw a line and mark it as 'h'.

we can use sine formula to find out the opposite i.e. h

sin∅ = opposite ÷ hypotaneous

sin 60° = h ÷ 8

h = 8 sin 60°

h= 4√3

Now, let's find the area

Area = 1/2 × base × height

Area = 1/2 × 8 × 4√3

area= 16√3 cm²

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3 years ago
F(x) = (1)<br> What is the x intercept
Vinvika [58]

Answer:

There is no x-intercept, only a y-intercept, which would be 1

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3 years ago
Suppose u= {3,6,9,12,15,18,21} is the universal set and M={3,9,15,21} what is M?
stich3 [128]
Are you asking for a name? M is a subset of u. Is there something further?
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Bogdan [553]
Find the area do base times height times .5
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This is for my friend so if you could solve this asap that would be great
Yuliya22 [10]

Answer:

1. 5x^2 − 3x − 2

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