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2 years ago

X2-(2x+3) Elimina los signos de agrupación

Mathematics

1 answer:

Amiraneli [1.4K]2 years ago

7 0

You first used pemdas so that will be 6x times -2 it should be -18

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Please help ASAP!!!!

DerKrebs [107]

Anwser:

y = 2x

Examples:

1.1= 1
2.2= 4
3.3= 9
4.4= 16
5.5= 25

6 0

3 years ago

You order from a catalog the following office supplies: 10 boxes of paper, each box is 6 pounds and 36 boxes of pens, each box w

babymother [125]

$40.50 10 boxes at 6lbs = 60lbs

36 boxes at 12 ounces = 432 ounces dived by 16(16 oz in a lbs)= 27 lbs

60 lbs plus 27 lbs = 87 lbs total weight

87lbs - 20lbs($12)= 67lbs - 30 lbs($10)= 37lbs x .50($.50 per pound)= $18.50

$12+$10+$18.50= $40.50

6 0

2 years ago

Find an equation of the sphere that passes through the origin and whose center is (-2, 2, 3). Be sure that your formula is monic

Andrei [34K]

Answer:

$\bold{(x+2))^2+(y-2)^2+(z-2)^2=17}$

Step-by-step explanation:

Given the center of sphere is: (-2, 2, 3)

Passes through the origin i.e. (0, 0, 0)

To find:

The equation of the sphere ?

Solution:

First of all, let us have a look at the equation of a sphere:

$(x-a)^2+(y-b)^2+(z-c)^2=r^2$

Where ( $x,y,z$ ) are the points on sphere.

$(a, b, c)$ is the center of the sphere and

$r$ is the radius of the sphere.

Radius of the sphere is nothing but the distance between any point on the sphere and the center.

We are given both the points, so we can use distance formula to find the radius of the given sphere:

$D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2}$

Here,

$x_1 =0 \\y_1 =0 \\z_1 =0 \\x_2 =-2 \\y_2 =2 \\z_2 =3$

So, Radius is:

$r = \sqrt{(-2-0)^2+(2-0)^2+(3-0)^2}\\\Rightarrow r = \sqrt{4+4+9} = \sqrt{17}$

Therefore the equation of the sphere is:

$(x-(-2))^2+(y-2)^2+(z-2)^2=(\sqrt{17})^2\\\bold{(x+2))^2+(y-2)^2+(z-2)^2=17}$

4 0

3 years ago

Why does -2^6 equal -64 but -2 x -2 x -2 x -2 x -2 x -2 equal 64?<br> (The x's are multiplication)

NikAS [45]

Answer:

when there are no parentheses around the base, this being -2 we put parentheses around the the 2 and the exponent so it will look like -(2^6) making whatever answer you get negative.

when you put parentheses around the base (-2)^6 you will get 64

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

What is the result of 96 divided by 6?8 12 16 or 32

hram777 [196]

96 divided by 6 is 16

96 divided by 8 is 12

96 divided by 12 is 8

96 divided by 16 is 6

96 divided by 32 is 3

8 0

3 years ago

Read 2 more answers