3 years ago

What is the following quotient? 2-sqrt8/ 4+sqrt12

Mathematics

1 answer:

user100 [1]3 years ago

6 0

Answer:

1-sqrt2/2+sqrt3 or (2-sqrt3-2sqrt2+sqrt6)or (1-sqrt2)(2-sqrt3)

Step-by-step explanation:

2-sqrt8/4+sqrt12

2-2sqrt2/4+2sqrt3

2(1-sqrt2)/2(2+sqrt3)

1-sqrt2/2+sqrt3(Not rationalizing)

(1-sqrt2)(2-sqrt3)/4-3

2-sqrt3-2sqrt2+sqrt6(If you rationalize)

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2 years ago

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Bob is driving along a straight and level road toward a mountain. At some point on his trip, he measures the angle of elevation

DerKrebs [107]

Answer:

Option A.

Step-by-step explanation:

Distance between Bob and the center of the mountain at the base = 19,427.5 ft.

Angle of elevation to the top of the mountain = 25°11'

We know that

1 degree = 60 minutes

1/60 degree = 1 minute

$25^{\circ}11'=25^{\circ}+\frac{11}{60}{\circ}\Rightarrow 25^{\circ}+0.183^{\circ}=25.183^{\circ}$

Let the height of the mountain be h.

In a right angled triangle

$\tan\theta = \frac{opposite}{adjacent}$

$\tan(25.183^{\circ}) = \frac{h}{19427.5}$

$\tan(25.183^{\circ})\times 19427.5 = h$

$h=0.4702\times 19427.5$

$h=9134.8105$

$h\approx 9135$

Therefore, the height of the mountain to the nearest foot 9135. Option A is correct.

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3 years ago

A plumber has a set fee for a house call and charges by the hour for repairs. The total cost of

ratelena [41]

Answer:

slope is the hourly rate of $110/hr

y-intercept is the set fee of 85

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2 years ago

Some please help I need assistance

ololo11 [35]

Okay it’s the second one

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3 years ago

Help me plsssssssssssssssssssssss

Mila [183]

Answer:

Step-by-step explanation:

Is these type of questions the decimal, (the little dot between the numbers) is really important.

2.094<=>2.702 In both of the equations there is a 2, and then the decimal, what numbers are next? 7, and 0. Which one of those it bigger? 7!!!!

so 2.094<2.702

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2 years ago