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AlladinOne [14]
3 years ago
7

Please help I don’t understand.... I will give brainliest to first and I will thank you!

Mathematics
1 answer:
Stolb23 [73]3 years ago
5 0
To find the answer we can break the figure into two parts: a rectangle and a semi circle.

The perimeter of the rectangle:

(10+4)×2

=28 ft

The perimeter of the semi circle:

perimeter of a circle: 2×兀×radius

(The radius: 4/2)

We divide the perimeter by two as it is a semi circle,which is half the circumferece perimeter of a circle.

[2(3.14)(4/2)] / 2

=6.28 ft

We can then add up the numbers to find the answer, and remember that 4 cm is overlapped:

28+6.28-4

=30.28ft

Therefore the answer is 30.28ft.

Hope it helps!
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Answer:

0.036

Step-by-step explanation:

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<em>on </em><em>your </em><em>calculator</em><em> </em><em>,</em><em> </em><em>you'll</em><em> </em><em>press </em><em>4</em><em>/</em><em>3</em><em> </em><em>×</em><em> </em><em>0</em><em>.</em><em>3</em><em>^</em><em>3</em>

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5 0
2 years ago
What are the approximate solutions of 4x2 + 3 = −12x to the nearest hundredth?
Gwar [14]
First 
4x^{2} + 12x + 3 = 0
determine if this equation were factorable, it's not for this one
so I use quadratic formula, try to search the formula online

x1 =  \frac{-12 +  \sqrt{(12)^{2} - 4*4*3} } {2*4} =  \frac{-12 +  4\sqrt{6} }{8} =  \frac{4(-3 +  \sqrt{6}) }{8} =   \frac{-3 + \sqrt{6}}{2} = - 0.28
x2 = \frac{-12 - \sqrt{(12)^{2} - 4*4*3} } {2*4} = \frac{-12 - 4\sqrt{6} }{8} = \frac{4(-3 - \sqrt{6}) }{8} = \frac{-3 - \sqrt{6}}{2} = - 2.72

<span>x ≈ −2.72 and x ≈ −0.28 is the solution</span>

3 0
4 years ago
4<br> 1. In the equation y = x + 5, what is the slope and<br> =<br> y-intercept?<br> m =<br> b=
alisha [4.7K]

Answer:

m = \frac{4}{3}

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8 0
3 years ago
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vampirchik [111]

Answer:

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Step-by-step explanation:

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