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Anna007 [38]
3 years ago
10

Help me please Surds

Mathematics
1 answer:
kodGreya [7K]3 years ago
7 0

Answer:

12\sqrt{6} + 8\sqrt{15} + 12 + 4\sqrt{10}

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Given

(4\sqrt{3} + 2\sqrt{2} )(3\sqrt{2} + 2\sqrt{5} )

Each term in the second factor is multiplied by each term in the first factor, that is

4\sqrt{3} (3\sqrt{2} + 2\sqrt{5} ) + 2\sqrt{2} (3\sqrt{2} + 2\sqrt{5} ) ← distribute both parenthesis

= 12\sqrt{6} + 8\sqrt{15} + 12 + 4\sqrt{10}

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I need help on this question plz
Butoxors [25]
You are correct! the answer is 4.6% because 33- the total AB people, divided by 714, the total group of people, is 0.046, and when you move the decimal point two spaces to the left, it makes it 4.6%
4 0
3 years ago
Keith had 8 1/2 cups of flour. He used 5 2/3 cups to make bread. How many cups f flour does keith have left ?
Alik [6]

8 1/2  -  5 2/3  = ? This is our equation correct?

<span>= 17/2 − 17/3  Convert both of them into improper franzinos

= ((17 × 3) − (17 × 2)) / (2 × 3)   Cross Multiply - Solve the ones inside the bubble

= (51 - 34) / 6    Solve

= 17/6   Answer

= 2 5/6    Simplified Answer</span>

5 0
3 years ago
Read 2 more answers
What is the volume of a right rectangular prism with a length of 2 1/3 ft, a width of ​ 1 1/2 ​ ft, and a height of ​ 3 3/4 ​ ft
marysya [2.9K]
The answer is:  13 ⅛  ft³ ; or, write as:  13.125 ft³ .
________________________________________________

Explanation:
________________________________________________

Volume:  V = Base Area * height ;
 
              V =  2 ⅓  ft. * 1 ½ ft. * 3 ¾  ft. ;
  
                 =  7/3 * 3/2 * 15/4  ft³ ;
 
                 =  (7 * 3 * 15) / (3 * 2 * 4)   ft³ ;
    
                 =  (315) / (24)   ft³ ;
 
                 =  105 / 8 ft³ ; 
 
                 =  13 ⅛  ft³ ; or, write as 13.125 ft³  .
___________________________________________________
 


3 0
3 years ago
KEVIN BOUGHT 3 POUNDS OF TRI-TIP FROM B STREET BUTCHERS FOR $29.97 AND ARNOLD BOUGHT 4 POUNDS OF TRI-TIP FROM MEL"S MEAT MARKET
Novosadov [1.4K]

Answer:

Arnold

Step-by-step explanation:

In order to compare, you'd have to find out how much they paid for each pound of tri-tip. So, to do this, you would divide the total amount of money the spent on the pounds by the number of pounds they bought. So for Kevin, you'd divide 29.97 by 3 to get that Kevin paid $9.99 for each pound. For Arnold, you'd divide 35.96 by 4 to get that Arnold paid $8.99 for each pound. And 8.99 is less than 9.99, so Arnold was right.

8 0
3 years ago
I know its easy but i forgot how to do this pls heeeelp me
denis23 [38]

Answer:

First number line: 3rd line from 0

Second number line: 7th line from 0

(Sorry if I explained it kinda weird, hope this helps!)

Step-by-step explanation:

On the first number line, you would put the dot on the 3rd line from zero. From 0 to one, it's split into 5 equal parts. 0 is 0/5 and 1 is 5/5. So all you do is  plot the dot on 3/5, or the 3rd line from 0.

Same thing with the second number line. Except for this time, it's split into 8 equal parts. Just count to the 7th line in between 0 and 1 and plot the dot.

4 0
3 years ago
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