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DIA [1.3K]
3 years ago
9

If a= 3+√5/2 then find the value of a square+1/a square

Mathematics
1 answer:
kondor19780726 [428]3 years ago
8 0
This will help u i hooe

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What is the slope of this skateboard ramp if it rises 1.2 meters above the ground and runs 4 meters horizontally at the base?
Nesterboy [21]
By definition, the slope is the inclination of a line in relation to the horizontal. It can be expressed in degrees, ratios and even in percent. Therefore, you can calculate it by applying the following formula:
 
 P%=(H/L)x100
 
 P% is the slope expressed in percent.
 H is the height (H=1.2 meters).
 L is the length (L=4 meters).
 
 When you substitute these values into the formula P%=(H/L)x100, you obtain the slope of the skateboard ramp:
 
 P%=(H/L)x100
 P%=(1.2 meter/4 meters)x100
 P%=0.30x100
 P%=30%
8 0
3 years ago
What is the answer to 2a + 3b =
Rainbow [258]

Answer:

2a+3b

Step-by-step explanation:

There wouldn't be a simplfied answer or solution if you don't have a solution for either a or b or both. And they are not like terms, so you can't add them together.

So the answer is 2a + 3b.

I hope this helps!

Have a great day!

6 0
3 years ago
Read 2 more answers
Find the prime factorization of each number (please)<br><br>891<br>23<br>504<br>230
patriot [66]

Answer:

  • 891 = 3^4 · 11
  • 23 = 23
  • 504 = 2^3 · 3^2 · 7
  • 230 = 2 · 5 · 23

Step-by-step explanation:

23 is a prime number. That fact informs the factorization of 23 and 230.

The sums of digits of the other two numbers are multiples of 9, so each is divisible by 9 = 3^2. Dividing 9 from each number puts the result in the range where your familiarity with multiplication tables comes into play.

  891 = 9 · 99 = 9 · 9 · 11 = 3^4 · 11

___

  504 = 9 · 56 = 9 · 8 · 7 = 2^3 · 3^2 · 7

___

  230 = 10 · 23 = 2 · 5 · 23

_____

<em>Comment on divisibility rules</em>

Perhaps the easiest divisibility rule to remember is that a number is divisible by 9 if the sum of its digits is divisible by 9. That is also true for 3: if the sum of digits is divisible by 3, the number is divisible by 3. Another divisibility rule fall out from these: if an even number is divisible by 3, it is also divisible by 6. Of course any number ending in 0 or 5 is divisible by 5, and any number ending in 0 is divisible by 10.

Since 2, 3, and 5 are the first three primes, these rules can go a ways toward prime factorization if any of these primes are factors. That is, it can be helpful to remember these divisibility rules.

6 0
3 years ago
Hi, you can get 15 points if you answer this...
RSB [31]

Answer:

Si

Step-by-step explanatio:

4 0
3 years ago
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Is it a, b, c, or d don’t do explaining I just need a letter:(
andrew-mc [135]

Answer:

b

Step by Step Explanation:

4 0
3 years ago
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