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Rudiy27
3 years ago
11

Ik a) but I need help with b)

Mathematics
1 answer:
lozanna [386]3 years ago
8 0

Answer:

{ \rm{ {( \frac{1}{ \sqrt{3} }) }^{7} }} \\

• First rationalise the denominator:

= { \rm{ {( \frac{1 \times  \sqrt{3} }{ \sqrt{3} \times  \sqrt{3}  }) }^{7} }} \\  \\  = { \rm{ {( \frac{ \sqrt{3} }{3}) }^{7} }}

• Open the bracket, by distributing the power to both the numerator and denominator:

= { \rm{ \frac{( \sqrt{3} ) {}^{6} \times  \sqrt{3}  }{ {3}^{7} } }} \\  \\  = { \rm{ \frac{27 \sqrt{3} }{2187} }} \\  \\   = { \rm{ \frac{ \sqrt{3} }{81} }}

b is 3 and c is 81

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Can you help me here pls?
patriot [66]

Answer:

57.82 jddnhdhdhdgdggd

7 0
3 years ago
Read 2 more answers
You buy candy bars at 85 cents each plus one newspaper for 60 cents. You can spend no more than $4. How many candy bars can you
Lilit [14]

Answer:

4

Step-by-step explanation:

Well first you want to take 0.60 from the total amount which is $4 leaving you with $3.40

then you want to divide the remaining amount of money by the cost of a candy bar ($0.85)

So you do 3.40/0.85 which is equal to 4

5 0
3 years ago
What type of endorsement is illustrated by the following example:
Bezzdna [24]
When receiving a check from someone, you'll see that there are lines on the back. Those lines are for the check to be endorsed so you can cash it or deposit your money. Most of the time you'll just sign the back to endorse it and put it in your account or get money in return. However, there are special cases that can show where the money should go. Here are different types of endorsements:

1. Blank endorsements have just your signature on the back. Anyone can cash or deposit a check with this endorsement.

2. Restrictive endorsements have "For Deposit Only" on the first line, then your signature below that. This type of check can only be deposited, not to be cashed for money.

3. Special endorsements are for giving your check to another person. This check can only be deposited or cashed by the person designated on the back. For this endorsement, you would write "Pay to the order of" and then the person's name you want to give the check to. You would then sign your name underneath that. 

As seen in your question, Isis Love is signing it as a special endorsement<em />. She is giving her check to Mike Lopez so his name follows "Pay to the order of". The numbers at the bottom would represent the bank account number. 
7 0
4 years ago
Mickey works in a square shaped office. The area of his office is 110.25 ft2. What is the length of one side of Mickey’s office?
krek1111 [17]

Answer: A formula that can be used to find the answer is (x Squared = 110.25) So (x times x = 110.25) 10.5 is the length of one side because 10.5 squared = 110.25.

Answer is 10.5


4 0
3 years ago
20 POINTS NEED HELP ASAP QUESTION IN PICTURE BELOW
crimeas [40]
For this case we have the following solution.
 x = gallons of water to be added
 For the 10% solution we have:
 0.1 * 8 = 0.8
 Then, for 5% we have:
 (0.8 / x + 8) = 0.05
 Rewriting:
 (0.8 / x + 8) = (5/100)
 Answer:
 An equation can be used to find x, the humber of gallons of water he should add is:
 (0.8 / x + 8) = (5/100) 
8 0
3 years ago
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