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2 years ago

Which choice is the correct answer for: 2.78 * 6?

Mathematics

2 answers:

amid [387]2 years ago

8 0

Hello!

2.78 * 6 = 16.68

I hope this helps, and have a nice day!

PolarNik [594]2 years ago

8 0

Answer:

wowowowowowowowoowowwowowowowpowowowowowowowoow

Step-by-step explanation:

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Simplify (4xy^-2)/(12x^(-1/3)y^-5) and Show work ...?

oee [108]

The answer is $\frac{x^{4/3}y^{3}}{3}$ .

The fraction is: $\frac{4xy^{-2} }{12 x^{-1/3} y^{-5} }$
Let's rewrite it: $\frac{4xy^{-2} }{12 x^{-1/3} y^{-5} }=\frac{4 }{12 }*\frac{x }{ x^{-1/3} }*\frac{y^{-2} }{ y^{-5} }$

Since $\frac{x^{a} }{x^{b}} =x^{a-b}$ ,
then:
*** $\frac{x}{ x^{-1/3} }= x^{1-(-1/3)} = x^{3/3+1/3} = x^{4/3}$
*** $\frac{y^{-2} }{ y^{-5} }= y^{-2-(-5)} = y^{-2+5} = y^{3}$
______
$\frac{4 }{12 }*\frac{x }{ x^{-1/3} }*\frac{y^{-2} }{ y^{-5} }= \frac{1*4}{3*4}* x^{4/3}*y^{3}= \frac{1}{3} * x^{4/3}*y^{3}= \frac{x^{4/3}y^{3}}{3}$

8 0

2 years ago

1/5 of a number is 14. Find the number

zheka24 [161]

We set up a proportion: 14/?= 1/5

Cross multiply: 1*?= 14*5
⇒ ?= 14*5/1= 70

1/5 of 70 is 14.

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2 years ago

8/v + 9/x=y Solve for v

Andreas93 [3]

The answer is v= -8x/-xy+9

Here is the step by step process (This is going to be long):

1. 9v+8x=vxy

Multiply both sides by vx

2. 9v+8x+−vxy=vxy+−vxy

−vxy+9v+8x=0

Add -vxy to both sides

3. −vxy+9v+8x+−8x=0+−8x

−vxy+9v=−8x

Add -8x to both sides

4. v(−xy+9)=−8x

Factor out the variable v

5. v(-xy+9)/-xy+9 = -8x/-xy+9

v = -8x/-xy+9

Divide both sides by -xy+9

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2 years ago

Super Cola is considering a recipe change. There are two recipes under development: a sugary, sweet cola and a less sugary, mild

pickupchik [31]

The researchers should flip a coin to decide independently for each subject, to randomly assign the cola recipe for each subject
Apex :)

8 0

2 years ago

Read 2 more answers

What is the system of equations by graphing

frez [133]

Answer:

(x, y) = (0, 4)

Step-by-step explanation:

The two lines intersect at their y-intercept: (x, y) = (0, 4).

6 0

3 years ago