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4 years ago

What is the answer to this problem?..

Mathematics

2 answers:

OlgaM077 [116]4 years ago

3 0

28 on top and 15 in the bottom so 28 15

stich3 [128]4 years ago

3 0

I would be 1 and 13/15
4 7 28 13
__ x _ = __ = 1 __
15 1 15 15
(7 would be 7/1)

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What is vaule of y when x=4'5

Degger [83]

Answer:

$y = 2.096$ or $y = \frac{2\sqrt5+6}{5}}$

Step-by-step explanation:

Given

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

$x = \frac{4}{5}$

Required

Find y

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

Substitute $x = \frac{4}{5}$

$y = \frac{4}{4/5} + \sqrt{4/5} + 0.2 - 5 * 4/5$

$y = 5 + \sqrt{4/5} + 0.2 - 4$

Collect like terms

$y = \sqrt{4/5} + 5 + 0.2 - 4$

$y = \sqrt{\frac{4}{5}} + 1.2$

Split the surd

$y = \frac{\sqrt4}{\sqrt5}} + 1.2$

$y = \frac{2}{\sqrt5}} + 1.2$

Rationalize

$y = \frac{2\sqrt5}{\sqrt5*\sqrt5}} + 1.2$

$y = \frac{2\sqrt5}{5}} + 1.2$

Take LCM and add

$y = \frac{2\sqrt5+1.2*5}{5}}$

$y = \frac{2\sqrt5+6}{5}}$

or solve as:

$y = \frac{2*2.24+6}{5}}$

$y = \frac{10.48}{5}$

$y = 2.096$

7 0

3 years ago

Will give 100 points and Brainliest! Take a factor out of the sqaure root: √3y^2, where y<0

Anit [1.1K]

Answer:

The solution in the photo aobve I think that is true

Step-by-step explanation:

I hope that is useful for you :)

6 0

3 years ago

Animal y=5.4x+34 person y=12x+8.5 y is weight x is years. when is the weight the same

I am Lyosha [343]

Answer:

Step-by-step explanation:

Animal Person

y = 5.4x + 34 y = 12x + 8.5; where y - weight, x - years

looking for when weight (y) is the same, so we need

animal weight (y) = person weight (y)

5.4x + 34 = 12x + 8.5

-5.4x -5.4x

34 = 6.6x + 8.5

-8.5 -8.5

25.5 = 6.6x divide both sides by 6.6

x = 3.86 years

not sure if you need your answer in decimal or what, but you can adjust accordingly.

4 0

4 years ago

What is the simplified form of x minus 5 over x squared minus 3x minus 10 ⋅ x plus 4 over x squared plus x minus 12? (6 points)

iren2701 [21]

Step 1 is to factor everything!

After factoring you will get:

x-5 over (x+2)(x+5) times x+4 over (x-3)(x+4)

Step 2 is to remove the duplicate factors!
Remove x+4 and x+5

x-5 over (x+2)(x-5) times 1 over x-3 = 1 over x+2 times 1 over x-3

Step 3 is to multiply the numerators and the denominators.

End result is 1 over (x+2)(x-3)

5 0

3 years ago

Read 2 more answers

IM GIVING EXTRA POINTS AND BRAINLIEST

Finger [1]

The answer would be 8746 ft :)

3 0

3 years ago

Read 2 more answers