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faust18 [17]
3 years ago
5

Add the expression (2x+5)+(3x-7)

Mathematics
1 answer:
dalvyx [7]3 years ago
3 0
The answer is 5x-2 :))
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Identify The domain of the rational function, g(x)= 1/x+3
8_murik_8 [283]

Answer:

The domain is (-∞ , -3) ∪ (-3, ∞) ⇒ D

Step-by-step explanation:

<em>The domain of the rational fraction is t</em><em>he values of x which make the fraction defined</em><em>. That means </em><em>the domain does not contain the values of x which make the denominator equal to 0</em><em>.</em>

∵ g(x) = \frac{1}{x+3}

∴ The denominator = x + 3

→ Equate the denominator by 0

∵ x + 3 = 0

→ Subtract 3 from both sides

∴ x + 3 - 3 = 0 - 3

∴ x = -3

→ That means the domain can not have -3 because it makes the denominator

   equal to 0

∴ The domain is all values of real numbers except x = -3

∴ The domain = {x : x ∈ R, x ≠ -3}

∴ The domain = (-∞ , -3) ∪ (-3, ∞)

4 0
3 years ago
15. John works for the local used car dealership. His weekly salary is $375 plus a commission based on the number of cars that h
ratelena [41]

Answer:

S = 935 when t ≤ 7

S = (180t - 325) when t > 7

Step-by-step explanation:

John's weekly salary = $375 + commission on number of cars he sell

Commission for the first seven cars sold = $80 per car

Commission above 7 cars = $180 per car

If John sells t cars each week then commission earned by John

= 80×7 + 180(t - 7)

So the salary for week = 375 + commission

S = 375 + 560 + 180(t - 7)

S = 935 + 180(t - 7)

S = 935 when t ≤ 7

     (180t - 325) when t > 7

     

3 0
4 years ago
Find the slope of (-3,-10) and (3,-8)
VikaD [51]
This is the answer right here I got it off of a slope calculator online

4 0
3 years ago
Read 2 more answers
Louisa has $145 saved in her account. She makes $8 an hour at work. How many hours must she work to have at least $320?
musickatia [10]
<span>$145 saved in her account.
</span><span>$8 an hour at work.
</span><span>at least $320

320 - 145 = 175

175 </span>÷ 8 = 21.875

Louisa needs to work about 22 more hrs to have at least $320!
6 0
3 years ago
The difference between tax advoidance and tax evasion
Ede4ka [16]

Answer: Tax evasion is illegal. One way that people try to evade paying taxes is by failing to report all or some of their income. ... In contrast, tax avoidance is perfectly legal.

7 0
4 years ago
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