Can any one help me any of them especially (b)

Answers

Answer 1

Answer: b.) $x^{- (1)/(2) }(x^{ (3)/(2) }-x^2)=x^{- (1)/(2) }(x^{ (3)/(2) })-x^{- (1)/(2) }(x^2)}=x^{- (1)/(2) + (3)/(2) }-x^{- (1)/(2) +2}=x-x^{ (1)/(2)$

e.) $(1)/( √(x) ) (x^2- √(x) )= \frac{1}{ x^{ (1)/(2) } } (x^2-x^ (1)/(2) ) \n = x^{- (1)/(2) } (x^2-x^ (1)/(2) )=x^{- (1)/(2) }(x^2)-x^{- (1)/(2) }(x^ (1)/(2) )} \n =x^{- (1)/(2) +2}-x^{- (1)/(2) + (1)/(2) }=x^ (1)/(2) -x^0=x^ (1)/(2) -1$

Answer 2

Answer: I hope this helps you.

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In 2010, Dario Franchitti won the indy 500 with a race speed of over 160 miles per hour. The race is 500 miles long. What is the length of the race in yards? In feet?

Answers

(500 miles) x (1,760 yards/mile) = 880,000 yards

(500 miles) x (5,280 feet/mile) = 2,640,000 feet

(500 miles) x (1.609 km/mile) = 804.67 km (rounded)

500 miles =880,000 yards and feet =2,640,000

Can someone plz help me :(

Answers

Answer:

The last answer on your last image

Step-by-step explanation:

It’s the last question

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Answers

.........................................................idk

Trina's teacher asked her to explain the division problem 48 ÷ 12. Which choice gives the correct explanation?A) Break 4 into 12 groups of 48. which one is it i am confused on it
B) Break 48 into 12 groups of 4.
C) Break 12 into 4 groups of 48.
D) None of these.

Answers

Answer: B) Break 48 into 12 groups of 4.

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given.

48÷12

This expression means dividing the number 48 by 12, or in other words, break 48 into 12 groups of 4.

So, if we solve :

48÷12= 4

In conclusion, the correct option is B)Break 48 into 12 groups of 4.

Feel free to ask for more if it´s necessary or if you did not understand something.

B.) 48 has to be broken up into 12 to get 4

One third of the bottles are plastic have 12 total

Answers

To find how many bottles are plastic just divide 12 by 3. 12/3=4 so 4 is one third of 12.

If it's 1/3 , you divide by 3. So 12 divided by 3 equals 12

Russell collected 30 stones at his grand parents' house. He decided to give his little sister 1 / 5 of the stones. How many stones did he give his sister?

Answers

he gives his sister 6 stones

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