2 years ago

What is the solution to this inequality?

Mathematics

1 answer:

kirza4 [7]2 years ago

7 0

Answer:

I think its B. ?????

Step-by-step explanation:

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Eight times the reciprocal of a number equals 2 times the reciprocal of 10. Find the number.

Marat540 [252]

Answer:x=40

Step-by-step explanation:

To find this

8 times the reciprocal of a number

We get

Assume the number is x

8×1/x=2×1/10

8/x=2/10

8/x=1/5

Cross multiply

x=40

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3 years ago

What is the result of multiplying 2.5x10^10 by 3.5x10^-2?

mojhsa [17]

8.75^8 when you multiply you add your exponents and when you divide you subtract your exponents

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Write an equation of a line that passes through (-12,-14) with slope 6

shusha [124]

Fill in the slope and that point in y=mx+b

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b= 58

Y=6x + 58

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3 years ago

In 1900, there was an Olympic underwater swimming event. The score was calculated by giving one point for each second the swimme

mash [69]

68.4*1= 68.4 60.2*2= 120.4 68.4+120.4= 188.8

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3 years ago

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Find 2 common angles that sum to (17pi/12) 2. Evaluate tan(17pi/12) using the sum identity for tangent.

Dmitry [639]

Note that
$\frac{17 \pi }{12} = \frac{3 \pi }{12} + \frac{14 \pi }{12} = \frac{ \pi }{4} + \frac{7 \pi }{6}$

Note that
$x= \frac{ \pi }{4}:\,\, sin(x) =cos(x)= \frac{1}{ \sqrt{2} },\,tan(x)=1\\x= \frac{7 \pi }{6} :\,\,sin(x)=- \frac{1}{2} ,\,\,cos(x)=- \frac{ \sqrt{3} }{2} ,\,\,tan(x)= \frac{1}{ \sqrt{3} }$

Use the identity
$tan(x+y)= \frac{tan(x)+tan(y)}{1-tan(x)tan(y)}$

Therefore
$tan( \frac{17 \pi }{12} )= \frac{1+ \frac{1}{ \sqrt{3} } }{1- \frac{1}{ \sqrt{3} } } = \frac{ \sqrt{3}+1 }{ \sqrt{3}-1} = \frac{( \sqrt{3}+1 )^{2}}{( \sqrt{3}-1 )( \sqrt{3}+1 )} = \frac{3+1+2 \sqrt{3}}{3-1} =2+ \sqrt{3}$

Answer: 2 + √3

8 0

3 years ago