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Rzqust [24]
2 years ago
9

Square root of 2 + square root of 5 / square root of 2 - square root of 5

Mathematics
2 answers:
Juliette [100K]2 years ago
8 0

Answer:

-(7+2sqrt(10))/3

Step-by-step explanation:

Sergeeva-Olga [200]2 years ago
7 0
To simplify the fraction, we need to rationalize the denominator by multiplying the numerator and denominator by the conjugate.

The conjugate is the same thing as the denominator with a plus sign instead of a minus sign.

(sqrt(2) + start(5))^2/((sqrt(2) - start(5))(sqrt(2) + start(5)))

FOIL the top and bottom.

The answer is -(7+2sqrt(10))/3





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The product of -2 and a number minus 6 is greater than -18
Eduardwww [97]
So product means multiplication so -2*(x-6) > -18 so divide by -2 on both sides to get x-6<9 because when you multiply a negative the sign swaps directions and then add 6 to get x<15
8 0
2 years ago
A four pack of batteries cost 5.16 at this price what is the cost of
Genrish500 [490]

Answer:

1.29 for 1 pack

Step-by-step explanation:

5.16/4=1.29

7 0
3 years ago
The probability of raining on Saturday is 0.09. If today is Saturday, then find the
Rudik [331]

Answer:

I Think it is A

Step-by-step explanation:

It is a because 9×7=63

3 0
2 years ago
Algebra 1 : ordered pairs kinda dont get it
lesantik [10]

Answer:

<em>Option C; 3x - y = -27 and x + 2y = 16</em>

Step-by-step explanation:

1. Let us consider the equation 21x - y = 9. In this case it would be best to keep the equation in this form, in order to find the x and y intercept. Let us first find to y - intercept, for the simplicity ⇒ 21 * ( 0 ) - y = 9 ⇒ y = - 9 when x = 0. Now if we take a look at the first plot of line q, we can see that the x value is -9 rather than the y value, so this equation doesn't match that of line q. This would eliminate the first two options being a possibility.

2. Now let us consider the equation 3x - y = -27. Let us consider the x-intercept in this case. That being said, ⇒ 3x - ( 0 ) = -27 ⇒ 3x = -27 ⇒ x = -9 when y = 0. As we can see, this coordinate matches with one of the coordinates of line q, which might mean that the second equation could match with the equation for line v.

3. To see whether Option 3 is applicable, we must take a look at the 2nd equation x + 2y = 16. Let us calculate the y - intercept here: ( 0 ) + 2y = 16 ⇒ 2y = 16 ⇒ y = 8 when x = 0. Here we can see that this coordinate matches with that of the second coordinate provided as one of the points in line v. That means that ~ <em>Answer: Option C</em>

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6 0
3 years ago
Prove that 3^17−3^15+3^13 is divisible by 73.<br><br> HELPPPPPP PLEASEEE
Fiesta28 [93]

Answer:

Well 3^17-3^15+3^13 equals 116,385,579

Now divide that by 73

So 116,385,579 ÷ 73

That equals 1,594,323

Hope this helps

4 0
2 years ago
Read 2 more answers
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