Ask question

Ask question

All categories

2 years ago

11

It's multiplication i know but it's a tricky one so help my soul

1 answer:

pav-90 [236]2 years ago

7 0

Answer: -8x^3y^2 (choice B)

The coefficients multiply to 4 times -2 = -8

the x terms multiply to x^2 times x = x^(2+1) = x^3

The y terms multiply to y times y = y^(1+1) = y^2

So that's how I ended up with -8x^3y^2

You might be interested in

MATH hw help!!!!!!!!!!!!!!!!!!!!!!!!!!!!

dolphi86 [110]

"Bucket method"
.. (4)*(14%) + (x)*(8%) = (4 +x)*(10%) . . . . . liters and % are in each "bucket"
.. 56 +8x = 40 +10x . . . . . multiply by 100, eliminate parentheses
.. 16 = 2x . . . . . . . . . . . . . . add -40-8x, then divide by 2
.. 8 = x

8 liters of 8% lemonade should be added to make the mixture 10% lemon juice.

4 0

2 years ago

Can yall help me with this

Dmitriy789 [7]

Answer:

3x^2 - 16x + 12

x^2 + 9

6 0

3 years ago

What is the distance between the points (-4,-8) and (10,-8)?

ioda

Answer: 14

Step-by-step explanation:

Input Data :

Point 1 ( x A , y A ) = (-4, -8)

Point 2 ( x B , y B ) = (10, -8)

Objective :

Find the distance between two given points on a line?

Formula :

Distance between two points = √ (x B − x A ) 2 + ( y B − y A ) 2

Solution :

Distance between two points = √ ( 10 − − 4 ) 2 + ( − 8 − − 8 ) 2

= √ 14 ^2 + 0 ^2

= √ 196 + 0

= √ 196 = 14

Distance between points (-4, -8) and (10, -8) is 14

7 0

2 years ago

Un jardín rectangular de 50 cm de largo por 34 m de ancho está rodeado por un camino de arena uniforme.Halla la anchura de dicho

Anastasy [175]

Answer:

5.85 m

Step-by-step explanation:

The width of the sand road can be calculated knowing its area and the dimensions of the rectangular garden as follows:

$A_{g} = a.b$

<u>Where:</u>

Ag: is the area of the rectangular garden

a: is the length of the rectangular garden = 50 cm = 0.5 m

b: is the width of the rectangular garden = 34 m

$A_{s} = 540 m^{2}$

<u>Where</u>:

As: is the area of the sand road

The relation between the area of the sand road and the area of the rectangular garden is the following:

$A_{s} + A_{g} = (a+2x)*(b+2x)$

$540 m^{2} + 0.5m*34m = ab + 2ax + 2bx + 4x^{2}$

$557 m^{2} = ab + 2x(a + b) + 4x^{2}$

$557 m^{2} - 17m^{2} - 2x(34.5 m) - 4x^{2} = 0$

$540 - 69x - 4x^{2} = 0$

By solving the above equation for x we have two solutions:

x₁ = -23.10 m

x₂ = 5.85 m

Taking the positive value, we have that the width of the sand road is 5.85 m.

I hope it helps you!

7 0

3 years ago

Is -13x+3 increasing or decreasing negative or positive slope????

Dafna11 [192]

-13x + 3 is decreasing and has a negative slope.

6 0

3 years ago