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Lynna [10]
3 years ago
6

Solve: 12 + (-13) - 12 - 5 A: 14 B: -12 C: -18 D: 45

Mathematics
1 answer:
Drupady [299]3 years ago
6 0

Answer:

-18

(i think this is right, sorry if i'm wrong)

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Find all solutions to the following equation. If there are any extraneous solutions, identify them and explain why they are extr
vagabundo [1.1K]

Answer:

b = 3, which is an extraneous solution because if we replace b = 3 in the equation, we must be 5/0 and 30/0, and there is division by 0.

Step-by-step explanation:

\frac{7}{b+3} + \frac{5}{b-3} = \frac{10b}{b^2-9}

The minus common multiply must be (b-3)*(b+3) = b² - 9

\frac{7*(b-3)}{b^2-9} + \frac{5*(b+3)}{b^2 -9}  = \frac{10b}{b^2-9}

7b - 21 + 5b + 15 = 10b

2b = 6

b = 3

Which is an extraneous solution because if we replace b = 3 in the equation, we must be 5/0 and 30/0, and there is division by 0. So this solution is invalid.

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2 years ago
Observe the expression below and select the true statement(s). ore than one answer possible.
mars1129 [50]
Here are the true statements:

The 6 in the third term is a coefficient. It is paired with a variable so it is a coefficient.

The y in the third term is a factor because it is being multiplied by (6x + 7).

The 9 is a constant because it is just a number in the second term.
7 0
2 years ago
Jasper has an annual salary of $71000 and his company pays him twice a month. What is the gross income per paycheck that Jasper
Sliva [168]

Answer:

$2,958.33

Step-by-step explanation:

Jasper's annual salary is $71000.

Considering that a year has 12 months and that he gets a paycheck twice each month, the total number of paychecks (P) Jasper gets each year is:

P = 12*2 = 24

To define Jasper's gross income per paycheck (I), simply divide his annual salary by the number of paychecks in a year:

I=\frac{\$ 71,000}{24} \\I=\$ 2,958.33

Jasper's gross income per paycheck is $2,958.33.

3 0
2 years ago
Anybody know this answer?
AveGali [126]

      3

19  _

      5 is the answer

7 0
2 years ago
Read 2 more answers
Need help fast please!!!!
Travka [436]
A. m < 125° is the answer 

when added together the two angles must be less than 180 degrees. 

when you subtract 55° from 180° you get 125° so you know the angle must be less than 125° since 125° + 55° = 180°

5 0
3 years ago
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