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stellarik [79]
3 years ago
15

How many 2 quarter hours in half hours

Mathematics
1 answer:
Oxana [17]3 years ago
8 0

Answer:

1 1/3

Step-by-step explanation:

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For the rational expression 2x^2-7x-15/x^2-25, do both of the following,
Mrrafil [7]

Answer:

a. \frac{2x + 3}{x+5}

b. x ≠ -5 (Vertical asymptote) and x ≠ 5 (Hole)

Step-by-step explanation:

Factor the numerator (Grouping):

2x^2 - 7x - 15              

Two numbers that multiply to -30 and add to -7 = -3 and 10

[2x^2 - 10x] + [3x - 15]

(2x + 3)(x - 5)

Factor the denominator (Difference of Two Squares):

x^2 - 25 = (x +5)(x-5)

Factored Expression:

(x - 5) can be factored out of top and bottom as a hole-

\frac{(2x + 3)(x - 5)}{(x + 5)(x - 5)} = \frac{2x + 3}{x+5}

Variable Restrictions:

Denominator ≠ 0

x + 5 = 0\\x = -5

Vertical asymptote at x = -5 ⇒ x ≠ -5

3 0
3 years ago
Please answer this correctly <br> Is the answer <br> 6:07am<br> 9:11am<br> 6:39am<br> 10:11am
nika2105 [10]

Answer:10:11 am

Step-by-step explanation:

3 0
3 years ago
Rewrite this expression in addition<br> -8-(-12)-7
Andrej [43]

Answer:

-8+(+12)+)

Step-by-step explanation:

dont know

4 0
3 years ago
5y-8=x<br> 3y-4=x<br><br> please need help
jarptica [38.1K]
First, you set up the equation which would be 5y-8=3y-4.
                                                                             -3y       -3y
                                                                               2y-8= -4
                                                                                 +8    +8
                                                                                  2y=4
                                                                               divide by 2    
                                                                                   y=2
7 0
3 years ago
If 6:2=8:x, then<br><br> 6x = 16<br> 6x = 10<br> 2x = 48<br> 2x = 14
Talja [164]
The answer is 6x = 16
3 0
3 years ago
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