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3 years ago

HEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLP PPPPPPPLLLLLLLLLLLZZZZZZZZZZ

Mathematics

2 answers:

Anna007 [38]3 years ago

6 0

The graph one is (-2,2)

sergiy2304 [10]3 years ago

5 0

Answer: 4,2= Quadrant 1 -2,4= Quadrant 2 5,-3=Quadrant 3

-4,-4=Quadrant 4 First Page A=-2,2 2nd Page

Step-by-step explanation:

My Knowledge :)

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15% of a mass is 45 g. Calculate 20% of the mass

ira [324]

What is 100% of the mass ?

4 0

3 years ago

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Hi, can someone please help, and possibly explain the answer please.

mr_godi [17]

Answer:

$x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

Step-by-step explanation:

Quadratic formula: $x=\frac{-b\±\sqrt{b^2-4ac} }{2a}$ when the equation is $0=ax^2+bx+c$

The given equation is $1=-2x+3x^2+1$ . Let's first arrange this so its format looks like $y=ax^2+bx+c$ :

$1=-2x+3x^2+1$

$1=3x^2-2x+1$

Subtract 1 from both sides of the equation

$1-1=3x^2-2x+1-1\\0=3x^2-2x+0$

Now, we can easily identify 3 as a, -2 as b and 0 as c. Plug these into the quadratic formula:

$x=\frac{-b\±\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

I hope this helps!

8 0

3 years ago

Can someone help me with this, please? I'm not sure how to solve this.

bazaltina [42]

Answer:

11.) 10w^2 + 43w + 21.

12.) -15y^2 - 2y + 8

Check the explanation for details

Step-by-step explanation:

11.) You are meant to multiply each row by both columns. For instance, multiply 5w by 2w and 7 you will get 10 w^2 and 35 w

Also, multiply 3 by both 2w and 7 you will get 6w and 21. Therefore,

Expansion of ( 5w + 3 )( 2w + 7 ) will produce 10w^2 + 37w + 6w + 21

= 10w^2 + 43w + 21.

12.) Repeat the same process by multiplying row by column.

Multiply -3y by 5y and 4 you will get -15y^2 and -12y.

Also, multiply 2 by same 5y and 4. You will get 10y and 8

Therefore, the expansion of

( -3y + 2 )( 5y + 4 ) will be

-15y^2 - 12y + 10y + 8

-15y^2 - 2y + 8

4 0

3 years ago

Will mark brainliest if get the correct answer.

Savatey [412]

Answer:

Perimeter of rectangle before folded = 56 in

Total area after folding = 156 sq in

Step-by-step explanation:

Rectangle before folded: l = 16 and w = 12

P = 2(16) + 2(12) = 32 + 24 = 56 in.

Figure after folding: Area of trapezoid + area of rectangle

Area of trapezoid = h( $b_{1} + b_{2}$ )/2 = 6(4 + 16)/2 = 60

Area of rectangle = lw = 16(6) = 96

Total area after folding = 60 + 96 = 156 sq in.

Note: You could also find the area after folding by substracting the areas of the two triangles in the corners from the area of the original rectangle. Your choice. OK?

8 0

3 years ago

What is the positive solution to the equation:

Sindrei [870]

Answer:

x=8 or -8

Step-by-step explanation:

64 squared = 8 or -8

8x8=64

-8x-8 = 64

8 0

2 years ago

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