Math help please!!!
check picture below

Answers

Answer 1

Answer: Simple...

$(3x y^(3) )(2 x^(3)y)$

3*2=6

$x* x^(3)= x^(4)$ (Exponents "multiplied" are added)

$y^(3) *y= y^(4)$

Making it...

$6 x^(4)y ^(4)$

Thus, the answer to your first question.

The Second One....

$(x^(2) -2x-2)*( x^(2) +2x+3)$

It looks hard, but it's not...break it down..

$x^(2) * x^(2) = x^(4)$

$x^(2) *-2x=-2 x^(3)$

$x^(2) *2x=2 x^(3)$

$x^(2) *-2=-2 x^(2)$

$-2x*2x=-4 x^(2)$

$x^(2) *3=3 x^(2)$

-2*2x=-4x

-2x*3=-6x

-2*3=-6

Now..FINALLY...add it up..

Making the answer to your second equation...

$x^(4) -2 x^(3) +2x ^(3) -6x ^(2) +3 x^(2) -10x-6$

$x^(4) -3x ^(2)-10x-6.$

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23 5/8 - 12 3/8 =.12.11 2/16.1111 2/8

Negative 12 minus 4

Answers

-12-4
Subtracting negative numbers is like adding the opposite.
s0 -12+-4, that equals. -16

-12-4 = -12 + -4
-12-4 = -16

find the volume of a 4 ft by 2 ft by 3 ft rectangular prism with a cylindrical hole, radius 6 in., through the center

Answers

V = lwh - πr²h
V = (4)(2)(3) - 3.14(¹/₂)²(3)
V = (8)(3) - 3.14(¹/₄)(3)
V = 24 - 3.14(³/₄)
V = 24 - 2.355
V = 21.645 ft³
V = 259.74 in³

What are the x-intercepts of the graph of the function f(x) = x2 + 4x – 12?(–6, 0), (2,0)
(–2, –16), (0, –12)
(–6, 0), (–2, –16), (2, 0)
(0, –12), (–6, 0), (2, 0)

Answers

Answer:

Coordinates are (–6, 0), (2,0).

Step-by-step explanation:

Given the function $f(x) = x2+4x-12$

we have to find the x-intercepts of the graph of the function f(x).

$y = x2+4x-12$

As the value of y coordinate is 0 on x-axis which gives the x-intercepts of the function.

Put y=0 in above function we get the x-intercepts.

$x^2+4x-12=0$

⇒ $x^2+6x-2x-12=0$

⇒ $x(x+6)-2(x+6)=0$

⇒ $(x-2)(x+6)=0$

⇒ x=2 and x=-6

Hence, x-intercepts are 2 and -6

⇒ Coordinates (–6, 0), (2,0).

Option 1 is correct.

-7(1+7n)=36-6n this is a very hard solving equations question I don't get HELP!!!

Answers

n=-1 distribute then isolate your variable and divide

-7(1 + 7n) = 36 - 6n
-7(1) - 7(7n) = 36 - 6n
-7 - 49n = 36 - 6n
   +49n    +49n
   -7 = 36 + 43n
   -36   -36
      -43 = 43n
   43    43
      -1 = n

Help ASAP Science/ Math..... Bill and Amy want to ride their bikes from their neighborhood to school which is 14,400 meters away. It takes Amy 2400 seconds to arrive at school. Bill arrives 1200 seconds after Amy. How much faster (in meters/ seconds) is Amy's average speed for the trip?

Answers

Answer:

Amy is 1200 seconds fater than Bill.

Step-by-step explanation:

Elia rode her bicycle from her house to the beach at a constant speed of 18 kilometres per hour and then rode from the beach to the park at a constant speed of 15 kilometres per hour. The total duration of the rides was 1 hour and the distances she rode in each direction are equal. Let b be the number of hours it took Elia to ride from her house to the beach, and p the number of hours it took her to ride from the beach to the park.

Which system of equations represents this situation?