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3 years ago

What is the estimate for 23 3/8

Mathematics

1 answer:

Bumek [7]3 years ago

8 0

23 x 8 = 184

184 + 3 = 187 = 187/8

187 / 8 = 23 3/8

Answer: 187/8

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Find the mass of the triangle with vertices (1; 0; 0), (0; 2; 0), (0; 1; 1) if the density function is given by (x; y; z)

Luda [366]

Answer:

$=\frac{17}{3}$

Step-by-step explanation:

Density of a function is $\rho(x,y)=x^{2} +y^{2}$

I have drawn the right angle triangle for visualization

equation for the line passing through (1,0) and (0,4) is

$\frac{y}{4} =\frac{x-1}{-1}$

$y=4-4x$

= $\int_{0}^1\int_{0}^{4-4x} (x^{2}+y^{2})dydx$

= $\int_{0}^{1}(x^{2}+\frac{y^{3} }{3})dx$

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= $\int_{0}^{1}(\frac{-76}{3}x^{3} +68x^{2}-64x^{}+\frac{64}{3} )dx$

= $=(\frac{-76}{3} \frac{x^{4} }{4})+\frac{68}{3}x^{3}-32x^{2}+\frac{64}{3}x^{})$

$=\frac{17}{3}$

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3 years ago

Help please I will give you the brainliest

ioda

Answer:2

Step-by-step explanation:

4 0

3 years ago

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If 5 is subtracted from the square of a number ,the result is 4 , find the number.

Levart [38]

Answer:

9 I think

Step-by-step explanation:

I added 5 plus 4 to get 9 but I'm really not sure but I hope i helped!

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3 years ago

Simplify the difference. (–7x – 5x^4 + 5) – (–7x^4 – 5 – 9x)

sineoko [7]

Answer: $2x^4+2x+10$

Step-by-step explanation:

You need to remember the mulplication of signs:

$(+)(+)=+\\(-)(-)=+\\(-)(+)=-$

Knowing this, you can distributive the negative sign. Then you get:

$(-7x- 5x^4 + 5) - (-7x^4 - 5 - 9x)=-7x- 5x^4 + 5 +7x^4 + 5 + 9x$

Now you need to add the like terms. Then:

$=2x+2x^4+10$

Finally, you can order the polynomial obtained in descending order. Therefore, the answer is:

$=2x^4+2x+10$

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3 years ago

During a 20% off sale, the sale price of a bluetooth radio was $33.96. What was the regular price?

SVETLANKA909090 [29]

20% of the regular price was off.

So 80% of the regular price stayed on.

$33.96 was that 80% of the regular price.

(0.8) · (regular price) = $33.96

Divide both sides by (0.8).

Regular price = ($33.96) / (0.8)

<em>Regular price = $42.45</em>

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3 years ago