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2 years ago

25 x (10+3) in word form

Mathematics

2 answers:

FinnZ [79.3K]2 years ago

7 0

Answer:

Step-by-step explanation:

25 times the sum of 10 and 3

sdas [7]2 years ago

7 0

Answer:

Twenty five times the sum of ten and three.

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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 company declares a 5% stock dividend. The debit to retained earnings is an amount equal to

Nadya [2.5K]

Answer:

A company declares a 5% stock dividend.

The debit to retained earnings is an amount equal to - the market value of the shares, that are to be issued.

We can say that a retained earnings balance is increased when we are using a credit and this is decreased when we make a debit.

A retained earnings is the total amount of money left, after all the expenses and dividends are paid by the company.

8 0

2 years ago

Dave and Stephanie have competing refreshment stand businesses. Dave's profit can be modeled with the polynomial 3c2 + 9c - 100

sweet [91]

Answer

idk

Step-by-step explanation:

WHY T F

ARE THEY USING LETTERS IN MATH

8 0

3 years ago

What is 8/32 times 14/21?

ki77a [65]

(3)14. 32 ×21 = 96
8. 32
__. 64
112

112/96 <--the original answer
56/48
28/24
14/12
7/6 <--simplified answer

7 0

2 years ago

-4x - 28y=56 4x + 14y=-28

ddd [48]

Adding the 2 equations will eliminate x because -4x + 4x = 0
so we get
-14y = 28
y = -2
plug this into the second euqtion:-
4x + 14(-2) = -28
4x - 28 = -28
x = 0

answer is x = 0 , y = -2

4 0

3 years ago