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3 years ago

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

greater than is >.

score greater than a 70 on his test to pass

so answer

x > 70

8 0

3 years ago

Read 2 more answers

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

6 0

3 years ago

What is the surface area? 8 cm 4 cm 1 cm square centimeters

svlad2 [7]

32 cm (I hope this helps you)

6 0

3 years ago

PLEASE HELP how do i solve (5-3i)^2

Jet001 [13]

Answer:

16-30i

Step-by-step explanation:

This is what I got :)

7 0

3 years ago

Read 2 more answers

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