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4 years ago

Is the square root of 1,815 rational?

Mathematics

2 answers:

Masja [62]4 years ago

4 0

Answer:

It is not

Step-by-step explanation:

8_murik_8 [283]4 years ago

3 0

<h3>Answer: No, it is not rational</h3>

Explanation:

Using a calculator, we find that

sqrt(1815) = 42.6028168082816

which is not a whole number. The decimal numbers go on forever without any known pattern. Therefore, this number is irrational. This means it is not rational.

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A total of $27,000 is invested, part of it at 12% and the rest at 13%. The total interest after one year is $3385. How much was

Sveta_85 [38]

The amount invested in each rate are $14500 and $12500 respectively;

Let the amount invested in each be P1 and P2

Let the individual interest be I1 and I2 respectively;

I1 = P1R1T/100

I2 = P2R2T/100

If a total of $27,000 is invested, then;

P1 + P2 = 27000 ........... 1

If the total interest after one year is $3385, then;

I1 + I2 = 3385

$\frac{P_1(12)(1)}{100} + \frac{P_2(13)(1)}{100} = 3385\\0.12P_1+0.13P2=3385\\12P_1 + 13P_2=338500 ........................... 2$

Solving equations 1 and 2 simultaneously;

P1 + P2 = 27000 ........... 1 * 12

12P1 + 13P2 = 338500 ........... 2 * 1

________________________________

12P1 + 12P12 = 324000

12P1 + 13P2 = 338500 ...

Subtract both equations

12P2 - 13 P2 = 324000 - 338500

-P2 = -14500

P2 = 14500

Recall that P1 + P2 = 27000

P1 = 27000 - P2

P1 = 27000 - 14500

P1 = 12500

Hence the amount invested in each rate are $14500 and $12500 respectively;

Learn more here: brainly.com/question/19088526

7 0

3 years ago

How do you solve linear equations in three variables?

barxatty [35]

''Pick any two pairs of equations<span> from the system. Eliminate the same </span>variable<span> from each pair using the Addition/Subtraction method. Solve the system of the two new </span>equations<span> using the Addition/Subtraction method.''</span>

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3 years ago

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A ball inside of this cube has a volume of 268 cubic inches. If each side of the cube measures 9.5 inches, what is the volume of

n200080 [17]

Answer:

589.4 cubic inches.

Step-by-step explanation:

The volume of the cube with each side of the measure of 9.5 inches.

So, the volume of the cube will be (9.5 × 9.5 × 9.5) = 857.375 cubic inches.

Now, if there is a ball inside this cube with volume 268 cubic inches then the remaining volume inside the cube is filled with air.

Therefore, the volume of air inside the cube will be (857.375 - 268) = 589.375 cubic inches ≈ 589.4 cubic inches. (Answer)

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4 years ago

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Find the coordinates of the midpoint of a segment with the endpoints M(6, −41) and N(−18, −27). Then find the distance between t

mezya [45]

Answer:

Midpoint is (-6,-34)

Step-by-step explanation:

(6+(-18))/2. (-41+(-27))/2

-12/2. (-68)/2

-6. , - 34

Distance =(6--18)^2 +(-14--27)^2

23^2. +13^2

529 +169

= 698

So u will find the square root of 698

The ans u get is the distance

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4 years ago

In your own words define angle

LuckyWell [14K]

An angle is two rays that lie on one plane, and both have the same endpoint.

It could look like this : ∠

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4 years ago

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