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2 years ago

How many solutions does this system of equations have? Explain how you know.

Mathematics

1 answer:

Nostrana [21]2 years ago

3 0

Answer:

No solution

Step-by-step explanation:

The given equations are :

9x-3y=-6

3x-y=2.....(1)

5y=15x+10

5y-15x=10

y-3x=2 .....(2)

Equations (1) and (2) shows that the lines are parallel. We know that for parallel lines, there is no solution.

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Order the numbers from greatest to least:

Natali5045456 [20]

Answer:

44.120 > 44.102 > 44.012

6.002 < 6.020 < 6.200

Step-by-step explanation:

Greatest to Least

4 0

2 years ago

Read 2 more answers

A restaurant purchased 18 cases of hamburgers with 26 hamburgers in each case. Since that time they sold 73 hamburgers. How many

Lady bird [3.3K]

Answer:

395 Burgers.

Step-by-step explanation:

each crate has 26 burgers, if there are 18 crates its 18x26 which gives you 468 burgers. If they sold 73 after that, you subtract. 468-73= 395. They will have 395 burgers.

7 0

2 years ago

|x+8| =−3<br> plz help!! show steps and stuuf

Mashcka [7]

Answer:

No solution

Step-by-step explanation:

since it equals a negative 3 in the original equation it cannot be solved

7 0

3 years ago

Read 2 more answers

Is the solutipn shown below correct? Explain. 9x+2=8x^2+6x

marin [14]

Answer:

the answer is not correct

there is a sign error under the radical

it should be 3^2 - 4(-8)(2) = sqrt(73) not sqrt(55i)

Step-by-step explanation:

3 0

3 years ago

The batteries from a certain manufacturer have a mean lifetime of 850 hours, with a standard deviation of 70 hours, assuming tha

matrenka [14]

To answer (a), we will need to find the Z value for 710 hours and 990 hours.

$\begin{gathered} For\text{ 710} \\ Z\text{ = }\frac{x-\mu}{\sigma} \\ \text{ = }\frac{710-850}{70} \\ \text{ = -2} \\ p\text{ =0.0228 } \\ For\text{ 990:} \\ Z\text{ = }\frac{990-850}{70} \\ \text{ =2} \\ p\text{ = 0.9772} \end{gathered}$ $\begin{gathered} To\text{ find P \lparen–2 \le Z \le 2\rparen} \\ =\text{ 0.9772 -0.0228} \\ =\text{ 0.9544} \\ =95.44\% \end{gathered}$

B) 68% of data lies between one standard deviation of the mean.

850 +70 = 920

850 - 70 = 780

5 0

1 year ago