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3 years ago

Help with 10 and 11 please!

Mathematics

1 answer:

Nady [450]3 years ago

7 0

23/50 * 2 = 46/100

11/20 * 5 = 55/100

Hope this helps! :D

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If Kaylee was 18 and Lylah was 45 how many years younger would Kaylee be??

SVETLANKA909090 [29]

You are trying to find how much younger Kaylee is than Lylah.

You would subtract her age from Lylah's.

45-18= 27

Kaylee was 27 years younger than Lylah.

I hope this helps!
~kaikers

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3 years ago

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What is the derivative of the function below?

11111nata11111 [884]

$g(x)=4x-\dfrac{1}{4x}=4x-(4x)^{-1}\\\\\\\\g'(x)=\left[4x-(4x)^{-1}\right]'=(4x)'-\left[(4x)^{-1}\right]'=4-[-1(4x)^{-2}]\cdot4\\\\=4+\dfrac{1}{(4x)^2}\cdot4=4+\dfrac{4}{4^2x^2}=\boxed{4+\dfrac{1}{4x^2}}\\\\Used:\\\\(f(x)-g(x))'=f'(x)-g'(x)\\\\.[f(g(x))]'=f'(g(x))\cdot g'(x)\\\\(x^n)'=nx^{n-1}$

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2 years ago

Which two decimals are equivalent to 0.6?

ra1l [238]

None of the above

0.6 would be equivalent to 0.60 and 0.600 and 0.600000...but none of the above answers

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3 years ago

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Tao wants to check that the expression 3(4x – 6) simplifies to 12x – 18. What is the value when 2 is substituted for x into both

timurjin [86]

Answer:

Step-by-step explanation:

3( 4x - 6)

Let x =2

3( 4*2 -6)

3(8-6)

3*2

Check

12x-18

12*2 -18

24-18

Both equal 6

4 0

3 years ago

Erwin had 2 5/12 gallons of lemonade. He spilled 11/12 gallon of lemonade. How much lemonade dose he have left? Write in simples

xz_007 [3.2K]

Answer:

Erwin have 1 $\frac{1}{2}$ gallons of lemonade left

Step-by-step explanation:

Erwin had 2 5/12 gallons of lemonade. He spilled 11/12 gallon of lemonade. How much lemonade dose he have left? Write in simplest form

All we need to do is to subtract 11/12 from 2 5/12. But to do this, we will convert 2 5/12 to improper fraction

converting 2 5/12 to improper fraction yields : 29/12

Lemonade have left = Total lemonade - lemonade spilled

= 29/12 - 11/12

= 18/12

Lemonade have left =18/12

But we can reduce 18/12 to its lowest term

18÷6/ 12÷6 = 3/2

Lemonade have left = 3/2

We can change to 3/2 to a mixed number to give us 1 $\frac{1}{2}$

Therefore Erwin have 1 $\frac{1}{2}$ gallons of lemonade left

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3 years ago

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