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pochemuha
3 years ago
7

Can anyone help me with this question please .

Mathematics
2 answers:
pychu [463]3 years ago
8 0

Answer: y=-(5/4)x+5

Step-by-step explanation:

The parent function of a linear line is y=mx+b where m is the slope and b is the y intercept so:

Y=-(5/4)x+5

Y_Kistochka [10]3 years ago
3 0
Carrots are a dark blue and taste like foot
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Sam must score greater than a 70 on his test to pass the class. Which inequality represents this?
Zanzabum
<span>greater than is >.

</span><span>score greater than a 70 on his test to pass
</span><span>
so answer

</span>x > 70
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3 years ago
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Please HELP. ALSO WHY. 2 question. pLZZ
avanturin [10]

Answer:

1). Number of kids on the other side = 16

2). Brian took the time to each piece of pie = 20 seconds

Step-by-step explanation:

1). Let the number of kids on one side = x

  Then the number of kids on other side = 2x

  3 adults helped the side having number of kids = x, then the number of people on this side = x + 3

Since the total number of people on this side = 11

Then the equation will be,

x + 3 = 11

x = 11 - 3

x = 8

Then number of kids on the other side = 2x = 2×8

                                                                           = 16

2). By unitary method,

∵ Brian took the time to eat 6 pieces of the pie = 2 minutes

∴ Brian will take time to eat 1 piece of pie = \frac{2}{6} minutes

                                                                     = \frac{2}{6}\times 60 seconds

                                                                     = 20 seconds

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3 years ago
What is the surface area?<br> 8 cm<br> 4 cm<br> 1 cm<br> square centimeters
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Step-by-step explanation:

This is what I got :)

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Find values of a, b, and c (if possible) such that the system of linear equations has a unique solution, no solution, and infini
Cerrena [4.2K]

Answer:

IMPOSSIBLE

Step-by-step explanation:

First we set the equation system:

x+y+0z=0\\0x+4y+z=0\\4ax+by+cz=0

Now we set the matrix in order to have a solution for the system:

\left[\begin{array}{ccc}1&1&0\\0&4&1\\4a&b&c\end{array}\right]

Now we are going to apply Gauss-Jordan to find the solution of the system in terms of a, b and c:

-4aR_{1}+R_{3}\rightarrow R_{3}\\\\{\left[\begin{array}{ccc}1&1&0\\0&4&1\\0&(-4a+b)&c\end{array}\right]

Next step:

(4a-b)R_{2}+4R_{3} \rightarrow R_{3}\\\\{\left[\begin{array}{ccc}1&1&0\\0&4&1\\0&0&(4a-b+c)\end{array}\right]

Next step:

(4a-b+c)R_{2}-R_{3} \rightarrow R_{2}\\\\{\left[\begin{array}{ccc}1&1&0\\0&4(4a-b+c)&0\\0&0&(4a-b+c)\end{array}\right]

Next step:

4(4a-b+c)R_{1}-R_{2} \rightarrow R_{1}\\\\{\left[\begin{array}{ccc}4(4a-b+c)&0&0\\0&4(4a-b+c)&0\\0&0&(4a-b+c)\end{array}\right]

With this solution, we have a new equation system:

4(4a-b+c)=0\\4(4a-b+c)=0\\4a-b+c=0

This system can be solved by Cramer's rule, by finding the matrix determinant:

\left[\begin{array}{ccc}16&-4&4\\16&-4&4\\4&-1&1\end{array}\right]

\Delta s= (-64-64-64)-(-64-64-64)=0

As the determinant is zero, we can say that the second system is imposible to solve.

4 0
3 years ago
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