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Marat540 [252]
3 years ago
13

Find all possible values for the variables. complete two of the three problems

Mathematics
1 answer:
hjlf3 years ago
3 0

Answer: reeet

Step-by-step explanation:

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A man buys an article for $600 and sells it for $710. what is his profit or loss<br><br>​
ololo11 [35]

Answer:

Profit of $110

Step-by-step explanation:

$710-$600=$110

6 0
2 years ago
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
Factor 3x^3+6x^2+x+2 by grouping
bezimeni [28]
The answer for this question when grouping:

(x+2)(3x^2+1)
7 0
3 years ago
Read 2 more answers
URGENT...Please help me with this question!!!!!!
Hunter-Best [27]

Answer:

option 2

Step-by-step explanation:

The problem can be solved using Pythagoras' identity for a right triangle.

The angle between due East and due North is 90°

The solution here involves using the Cosine rule.

let x be the direct distance between house and office, then

x² = 17² + 21² - 2(17)(21)cos90° → option 2

Note that since cos90° = 0 the equation reduces to

x² = 17² + 21² ← Pythagoras' identity

6 0
3 years ago
Could someone pleaseeeeeee help?
exis [7]
The third choice is the answer
7 0
3 years ago
Read 2 more answers
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