4 years ago

Helppp meeeee!!!! :3333333333

Mathematics

2 answers:

german4 years ago

4 0

Circumference divided by 2 pi

DochEvi [55]4 years ago

3 0

Answer:

r = C ÷ 2π

Step-by-step explanation:

Given

C = 2πr ( isolate r by dividing both sides by 2π )

C ÷ 2π = r

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Evaluate the expression for x = 3 y= 1/3 and z= 5. 12 x - 3y / 4 x - Z

4vir4ik [10]

Answer:

Step-by-step explanation:

12 x - 3y / 4 x - Z

=12×3-3×1/3÷4×3-5

=36-1/12-5

=35/7

So the final answer is 5.

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3 years ago

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alexandr402 [8]

Answer:

38 degrees

Step-by-step explanation:

Alternate Exterior Angles Theorem

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3 years ago

Please answer the question from the attachment.

spin [16.1K]

Hi,

7x²-2x-8=0, so a = 7, b= - 2, and c = -8.

You just need to apply the formula for square equations:

$x_{1,2}=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-2)\pm\sqrt{(-2)^2-4\cdot 7\cdot (-8)}}{2\cdot 7}=\dfrac{2\pm\sqrt{228}}{14}=\dfrac{2\pm\sqrt{4\cdot 57}}{14}=\\\\=\dfrac{1\pm\sqrt{57}}7\Rightarrow x_1=\dfrac{1-\sqrt{57}}7,\;and\;x_2=\dfrac{1+\sqrt{57}}7.$

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3 years ago

True or false: the mayans wrote the digits in their numerals in a vertical format

svetlana [45]

Answer:

True

Step-by-step explanation:

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2 years ago

(X+1)-(-2x - 5)<br><br> Help

Diano4ka-milaya [45]

answer: 3x + 6

x + 1 + 2x + 5 = 3x + 6

remember to first distribute the negative to both terms in the second parentheses which makes the 2x and 5 both positive and then just combine like terms . pls mark brainliest

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3 years ago

Read 2 more answers