3 years ago

Which of the following are equivalent to sin 300°

Mathematics

1 answer:

vovangra [49]3 years ago

6 0

Answer:

cos 330

Step-by-step explanation:

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A dog kennel owner has 147ft. of fencing to enclose a rectangular dog run. She wants it to be 6times as long as it is wide. Find

igomit [66]

Answer:

length = 63 ft; width = 10.5 ft

Step-by-step explanation:

Let the width be x.

The length is 6 times the width, so the length is 6x.

The perimeter is the sum of 2 lengths and 2 widths.

6x + 6x + x + x

The perimeter equals 147 ft.

6x + 6x + x + x = 147

14x = 147

x = 10.5

The width is 10.5 ft.

The length is 6x, so the length is 6 * 10.5 ft = 63 ft

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3 years ago

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Allisa [31]

Answer:

The answer to your math eqaution is 7/8

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2 years ago

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Which expression can be used to find 52% of 230?

pogonyaev

Hello,

52% of 230 = 52/100 × 230 = 0,52 × 230 = 119,6

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A circle with radius of 2cm sits inside a circle with radius of 4cm. What is the area of the shaded region?

uysha [10]

Answer

12.56.. I think

umm you haven't said which part of the circles is shaded but I assumed that it's the gap between the two circles

$\pi {4}^{2} - \: \pi {2}^{2}$

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3 years ago

Solutions for 2x^2+18x=20, worth a TON, please only 100% answers ! Thank u !

victus00 [196]

Answer:

The solution of the given quadratic equation is 1 and (-10).

Step-by-step explanation:

$2x^2+18x=20$

$x^2+9x=\frac{20}{2}$

$x^2+9x-10=0$

$ax^2+bx+c=0$

Solving equation by quadratic formula:

Here , a = 1,b = 9, c = (-10)

$D=b^2-4ac=(9)^2-4(1)(-10)=121$

$x=\frac{-b+{\sqrt{D}}}{2a}=\frac{(-9)+\sqrt{121}}{2(1)}=1$

$x=\frac{-b-{\sqrt{D}}}{2a}=\frac{(-9)-\sqrt{121}}{2(1)}=(-10)$

The solution of the given quadratic equation is 1 and (-10).

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3 years ago