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Vedmedyk [2.9K]
3 years ago
6

I will rate you brainliest i need help with these 3 questions

Mathematics
1 answer:
Vlad1618 [11]3 years ago
4 0

Answer:

1) difference of squares, then its factors are (x+4)(x+2)

2) 3 (x+4)/2 (x-4)(x+4)

3/2 (x-4)

3) 3x+11/5x-9

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Are the given lengths 24, 60, 66, sides of a right triangle?
GarryVolchara [31]


24+60=84>66

60+66=126>24

66+24=90>60


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5 0
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Team tool bella canoed 15 3/4 miles in 5/4 hours. What was their average rate of speed in mph ​
luda_lava [24]

Average speed is 12.6 miles per hour

<em><u>Solution:</u></em>

Given that team tool bella canoed 15\frac{3}{4} miles in \frac{5}{4} hours

To find: average rate of speed in miles per hour

From given information,

distance = 15\frac{3}{4} \text{ miles } = \frac{15 \times 4+3}{4} = \frac{63}{4} \text{ miles}

time = \frac{5}{4} \text{ hours}

To find the speed we use the below formula,

speed = \frac{distance}{time}

Substituting the given values we get,

speed = \frac{\frac{63}{4}}{\frac{5}{4}}\\\\speed = \frac{63}{4} \times \frac{4}{5} = \frac{63}{5} = 12.6

Thus average speed is 12.6 miles per hour

7 0
3 years ago
Determine which numbers could not be used to represent the probability of an event. Select all that apply. A. StartFraction 64 O
vova2212 [387]

Answer:

A. \frac{64}{25} ​, because probability values cannot be greater than 1.

C. -1.5, because probability values cannot be less than 0.

Step-by-step explanation:

Probability is the extent to which an event is likely to happen. It ranges from 0(impossible) to 1(certain). Probability values can be written in decimal form or in fractional form.

The following numbers could not be used to represent the probability of an event.

A. \frac{64}{25} ​, because probability values cannot be greater than 1.

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6 0
3 years ago
Geometrical prove that limit X tends to zero sin x by X equals to 1 various is measured in radian​
11111nata11111 [884]

lim \frac{ \sin(x) }{x} = 1 \\

It is true only whenever x tends to 0(zero)

it is not importent that x be in radian or in degree.

7 0
3 years ago
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