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2 years ago

Anyone knows this?!?

Mathematics

1 answer:

IRINA_888 [86]2 years ago

8 0

Answer:

(0.84, 0.88)

Step-by-step explanation:

if you round 0.875 you get 0.88

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If x-1/x=5 find x^3+1/x^3=?

ipn [44]

$\dfrac{x-1}{x}=5\ \ \ \ /x\neq0\\\\\dfrac{x-1}{x}=\dfrac{5}{1}\ \ \ \ |\text{cross multiply}\\\\5x=x-1\ \ \ \ |-x\\\\5x=1\ \ \ \ |:5\\\\x=0.2\\\\\dfrac{x^3+1}{x^3}=\dfrac{x^3}{x^3}+\dfrac{1}{x^3}=1+\dfrac{1}{x^3}\to1+\dfrac{1}{0.2^3}=1+\dfrac{1}{0.008}\\\\=1+\dfrac{1}{\frac{8}{1,000}}=1+\dfrac{1,000}{8}=1+125=126\\\\\text{Answer:}\ \dfrac{x^3+1}{x^3}=126$

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4 years ago

Read 2 more answers

10x-2y=18 8x=y solve by substitution

lana [24]

Answer:

x = -1 and y = 18

Step-by-step explanation:

Given the system of equations

y + 8x = 10... 1

2y - 4x = 40 ... 2

From 1; y = 10-8x

Substitute into 2;

2(10-8x) - 4x = 40

20 - 16x - 4x = 40

20 - 20x = 40

-20x = 40 - 20

-20x = 20

x = -1

Recall that y = 10-8x

y = 10 - 8(-1)

y = 10 + 8

y = 18

therefore your answer is x = -1 and y = 18

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3 years ago

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Round 2,165.413 to the nearest hundredth.

stira [4]

2,200.413 is 2,165.413 to its nearest hundredth.

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3 years ago

Solve this please!!!

Pani-rosa [81]

I attached a couple below pictures with all the work and a bit more information to help you understand the problem.
I hope this helps! If you have any questions, just comment them below :)

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3 years ago

Radius of a circle is 5 units what is the diameter

Mashutka [201]

The diameter is 2x the radius. The radius 5 (x). 2(5) =10. Diameter= 10.

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1 year ago

Anyone knows this?!? ​

Anyone knows this?!?