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3 years ago

The minute hand of a clock is 15 cm long how far does the tip of the minute and travel in 20 minutes

1 answer:

4 0

20 mins means the hand moves 120 degrees around the clock.

The formula to find the arc length is 2pi×r×a/360

2×pi×15×1/3=30pi×1/3=10pi

so i think the answer would be 10 pi cm

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A list of numbers is given below. If x is a number in this list, which inequality could represent x? {-5, -12, -2, -9}

Flauer [41]

Answer:

x<-1

Step-by-step explanation:

All of the numbers on/in the set are below -1. That means for that any of them to be x, the inequality would be x<-1.

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2 years ago

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katovenus [111]

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Step-by-step explanation:

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3 years ago

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Which of the numbers below is greater than -4.5? Select all that apply.

viva [34]

Answer:

A, C, and D

Step-by-step explanation:

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2 years ago

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Please help and show all work so I can fully understand it, thanks.

seraphim [82]

Answer:

$\frac{1}{m-4}$

Step-by-step explanation:

$\frac{\frac{4m-5}{m^4 -7m^3 +12m^2}}{\frac{4m-5}{m^3 -3m^2}}$

Factor the equation:

$\frac{\frac{4m-5}{m^2(m^2 -7m+12)}}{\frac{4m-5}{m^2(m-3)}}$

$\frac{\frac{4m-5}{m^2(m-3)(m-4)}}{\frac{4m-5}{m^2(m-3)}}$

Rewrite to suit the format of multiplying two fractions. Remember, dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second. A reciprocal of a fraction is when one switches the place of the numerator and the denominator, that is, the value on top (numerator), and the value on the bottom (denominator).

$\frac{4m-5}{m^2(m-3)(m-4)}*\frac{m^2(m-3)}{4m-5}$

Simplify, take out common terms that are found on both the numerator and denominator

$\frac{4m-5}{m^2(m-3)(m-4)}*\frac{m^2(m-3)}{4m-5}$

$\frac{1}{m-4}$

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3 years ago

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irina [24]

Answer: (x-12)^2-144

Step-by-step explanation:

use the formula (b/2)^2 in order to create a new term to complete the square.

LET ME KNOW IF ITS RIGHT

8 0

2 years ago