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3 years ago

PLZ HELP ME WITH THIS IT DUE TODAY.I GIVE YOU BRAINLEST JUST PLEASE HELP!!!! THANK YOU!

Mathematics

1 answer:

Fiesta28 [93]3 years ago

5 0

I’m not sure about number 1 but the answer for number 2 is

-4 1/2, -4.2, -4, ,0, 4

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The minimum point of the graph y = 2x^2 + 2x +1 is located at:

slega [8]

Answer:

Step-by-step explanation:

By completing the square, y = 2x^2 + 2x +1 will be y=2(x+1/2)^2+(1/2) the minimum point is the vertex of the parabola which is (-1/2, 1/2)

8 0

2 years ago

Factorise the following expressions.

Setler79 [48]

Answer:

Q.1 a²+10a+24

splitting the middle.

a²+6a+4a+24

=a(a+6)+4(a+6)

(a+6)(a+4)

Q.2 x²+9x+18

splitting the middle

x²+6x+3x+18

x(x+6)+3(x+6)

(x+6)(x+3)

3 0

2 years ago

How many ways are there to distribute n graded homeworks to n students such that none of them gets their own homework back?

Yuri [45]

Assume N students

Student 1 can get (n-1) papers
Student 2 can get (n-1) papers
Student 3 can get (n-1) papers
etc
Student N can get (n-1) papers

So for N students you can have N(n-1)

8 0

2 years ago

Brian correctly use a method of completing the square to solve the equation X a 2nd plus 7X -11 equals zero Brian‘s first step w

ArbitrLikvidat [17]

Answer:

$(\frac{7}{2})^{2}$

Step-by-step explanation:

Brain correctly use a method of completing the square to solve the equation:

$x^2+7x-11=0$

His First Step is to: Take the Constant Term to the Right Hand Side

$x^2+7x=11$

The Next Step Would be to:

Divide the Coefficient of x by 2
Square It
Add it to both Sides

In this case, the Coefficient of x = 7

Divided by 2 = $\frac{7}{2}$

Squaring It, we have: $(\frac{7}{2})^{2}$

It is this number $(\frac{7}{2})^{2}$ that is added to both sides in the manner below:

$x^2+7x+(\frac{7}{2})^{2}=11+(\frac{7}{2})^{2}$

6 0

3 years ago

Log10(x^2+1)=1 <br> .......

sesenic [268]

$2^{x} = 4 ----\ \textgreater \ x = log_{2}4

 x^{2} = 4 ----\ \textgreater \ x = \sqrt{4}$

5 0

3 years ago