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Andrews [41]
3 years ago
12

Am I right or wrong can you let me know so i can know if im doing it the right way

Mathematics
1 answer:
GarryVolchara [31]3 years ago
5 0

Answer:

you are right

Step-by-step explanation:

great job

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What value of m makes the system of linear equations mx − y + 3 = 0, (2m − 1)x − y + 4 = 0 have no solution?
Morgarella [4.7K]

Answer:

m ≠1  ( all m in R  except 1 )

Step-by-step explanation:

hello :

mx − y + 3 = 0.....(*)

(2m − 1)x − y + 4 = 0 ....(**)

multiply (*) by : -1       you have :   -mx+y-3=0   ....(***)

                                                    (2m − 1)x − y + 4 = 0 ....(**)

add(***) and(**)  : -mx+ (2m − 1)x+1 =0

(2m-m-1)x+1=0

(m-1)x = -1

this system have no solution  if : m-1≠0   means : m ≠1

6 0
3 years ago
Which expression is equivalent to this expression? <br><br> thank you :)
CaHeK987 [17]

Answer:

C. -4x - 1

Step-by-step explanation:

-\frac{1}{2}(8x+2)

Distribute the term outside of the parenthesis, Multiply each term in the parenthesis by the term outside (do not forget to include the negative sign when multiplying);

(-\frac{1}{2}(8x))+(-\frac{1}{2}(2))

Simplify,

-4x - 1

6 0
3 years ago
You roll two standard number cubes. What is the probability that the sum is odd, given than one of the number cubes shows a 1?
Virty [35]
 It's not specified whether 1 is the 1st or 2nd roll: HOWER:

The 1st Roll is "1": P(odd sum/the 1st Roll is 1)
What is the sample space of all numbers starting with "1":
{(1,1), (1,2), (1,3), (1,4), (1,5), (1,6),} = 6
the couple of add sum=(1,2), (1,4), (1,6), =3
P(odd sum/ 1st is 1) = 3/6 =1/2
or in applying the formula:

P(odd sum/the 1st Roll is 1) =P(odd sum ∩ 1) / P(getting "1") it will give the same probability = 1/2

NOW if the 2nd Roll is "1", it 's still 1/2

6 0
2 years ago
(10^2)^-3 = (10^-2)^3
nata0808 [166]

Answer: Hello!.......

1e-12 I am SOOO sorry if im wrong. I'm So sorry. Hope this helps you.♥

Step-by-step explanation:

Mark me brainest please. Hope I helped! Hope you make an 100%

-Anna♥

7 0
3 years ago
The theater department charged $5 per ticket for admission to the fall play, My Fair Lady. Additionally, they asked for a donati
barxatty [35]

Answer:

$(400+80x)

Step-by-step explanation:

We are required to find the total income on Friday Night

Ticket costs $5 each and they sold 80 tickets

Total ticket Sales = 80 X $5 =$400

There was a donation of $x per ticket, so for 80 tickets, there was a donation of $80x.

Total Income on Friday Night=Ticket Sale+Donations= $(400+80x)

3 0
3 years ago
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