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2 years ago

If you take the square root of an equation to solve, how many answers do you need

Mathematics

1 answer:

Pepsi [2]2 years ago

4 0

Answer:

answers depend on the question

Step-by-step explanation:

the question has end to end answer

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Q1 Two points A (-2, 9) and B (4, 8) lie on a line l. (i) Find the slope of the line l. (ii) Find the coordinates of the midpoin

lbvjy [14]

Answer:

Slope: -1/6

Midpoint of AB: (1, 8.5)

Distance of AB: √37

Step-by-step explanation:

Slope formula: $m = \frac{y2-y1}{x2-x1}$

Midpoint formula: $(\frac{x1+x2}{2} ,\frac{y1+y2}{2} )$

Distance formula: $d = \sqrt{(x2-x1)^{2}+(y2-y1)^{2}}$

3 0

2 years ago

1. The function of lenses is based on the law of refraction. A light beam is traveling from the medium 1 where its speed is V1,

masha68 [24]

Answer:

The index of refraction for Medium 2 would be 1.25

Step-by-step explanation:

We have the following data:

Speed of light in Medium 1 = V₁

Speed of light in Medium 2 = V₂

The speed of Light in Medium 2 is related to speed of light in Medium 1 as:

V₂ = 0.8 V₁

Moreover, it is given that Medium 1 is air with index of refraction equal to 1. i.e.

n₁ = 1

We need to find the index of refraction for medium 2. Lets name it is as n₂.

Snell's law related the above mentioned 4 quantities by following relation:

The ratio of indices of refraction of 2 mediums is equivalent to the reciprocal of ratio of phase velocities in those 2 mediums. Mathematically, this can be written as:

$\frac{n_{1}}{n_{2}} = \frac{V_{2}}{V_{1}}$

Substituting the values we have gives us:

$\frac{1}{n_{2}}=\frac{0.8V_{1}}{V_{1}} \\\\\frac{1}{n_{2}}=0.8\\\\ 1=0.8n_{2}\\\\\frac{1}{0.8}=n_{2}\\\\ n_{2}=1.25$

This means, the index of refraction for Medium 2 would be 1.25

3 0

3 years ago

A canister contains 12 ounces of flour. When the canister is full, it holds 6 times as much flour.

satela [25.4K]

Answer:

72 ounces

Step-by-step explanation:

given that it is holding 12 ounces and it says that the max is 6 times that of the 12 ounces it would be

12×6

thus it would equal 72

5 0

2 years ago

Read 2 more answers

the width of the rectangle is 5 inches less than it's length, and the area is 84 square inches. what are the length and width of

inysia [295]

W= l - 5 where w = width and l = length

area = 84 = l*w = l(l-5)

l(l-5) = 84
l^2 - 5l - 84 = 0
(l - 12)(l + 7) = 0
l = 12

length = 12 and width = 7

7 0

3 years ago

mrs hamilton worked for a real estate agency. she sold a house for $175,000. the agency's fee for the sale was 4% of the sale pr

katrin2010 [14]

You wrote $4,7725 and i dont understand the question.

3 0

2 years ago

If you take the square root of an equation to solve, how many answers do you need​

If you take the square root of an equation to solve, how many answers do you need