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astraxan [27]
3 years ago
10

3. Find the value of a and b when5+√6/5-√6 = a+b√6​

Mathematics
1 answer:
mr Goodwill [35]3 years ago
4 0

The answer for A is,

a = 5 +  \frac{ \sqrt{6} }{ \sqrt{5} }  -  \sqrt{6}  -  \sqrt{6b}

And the answer for B is,

b = - 1 +  \frac{5 +  \frac{ \sqrt{6} }{ \sqrt{5} } - a  }{  \sqrt{6} }

hope it helps.

sorry of its wrong.

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Please Help! I'm on a Timer!
Delvig [45]

Answer:

-0.2(x - 4) = - 1.7

-0.2x + 0.8 = - 1.7

-0.2x = - 2.5

x = 12.5

Step-by-step explanation:

Solving -0.2(x - 4) = - 1.7 using the distributive property:

(-0.2)(x) + (-0.2)(-4) = - 1.7

-0.2x + 0.8 = - 1.7

Subtract 0.8 from both sides

-0.2x + 0.8 - 0.8 = - 1.7 - 0.8

-0.2x = - 2.5

Divide both sides by -0.2

\frac{-0.2x}{-0.2} = \frac{-2.5}{-0.2}

x = 12.5

3 0
3 years ago
What is the 50th term of the sequence that begins with -6, 0, 6, 12...
vazorg [7]

Answer:

The 50th term is 288.

Step-by-step explanation:

A sequence that each term is related with the prior by a sum of a constant ratio is called a arithmetic progression, the sequence in this problem is one of those. In order to calculate the nth term of a setence like that we need to use the following formula:

an = a1 + (n-1)*r

Where an is the nth term, a1 is the first term, n is the position of the term in the sequence and r is the ratio between the numbers. In this case:

a50 = -6 + (50 - 1)*6

a50 = -6 + 49*6

a50 = -6 + 294

a50 = 288

The 50th term is 288.

5 0
4 years ago
Please help . Gets brainlest answer!!
AysviL [449]

3. -x²+-4x+-8

To solve:

−4x−5+−1(x²+3)

−4x+−5+−1x²+(−1)(3)

−4x+−5+−x²+−3

Combine like terms.

−4x+−5+−x²+−3

(−x²)+(−4x)+(−5+−3)

5.

It is not in standard form since this answer does NOT have x=, y=, #=. It only has the numbers. So, this is NOT in standard form.

6 0
3 years ago
Suppose that the local sales tax rate is 6.25% and you purchased a used car for $16,800. What is the car’s total cost?
Tanzania [10]
Total= Car Cost + (Car Cost * Tax %)

Total= $16,800 + ($16,800 * 6.25%)
convert % to decimal form; divide % by 100

Total= $16,800 + ($16,800 * 0.0625)
multiply inside parentheses

Total= $16,800 + $1,050

Total= $17,850


ANSWER: The total cost for the used car with tax is $17,850.

Hopd this helps! :)
7 0
4 years ago
Read 2 more answers
What is franks commission if he sales $12,500 of an item and his commission rate is 8.5%
Licemer1 [7]
<h3>SOLUTION:</h3>

Given,

Total sale = $12,500

Rate = 8.5%

Therefore, Commission

= 12,500 × 8.5%

= 12,500 × 85/1000

= 1062.5

5 0
3 years ago
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