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3 years ago

Simplify the product -3x(x^2+3x-1)

Mathematics

1 answer:

stepladder [879]3 years ago

7 0

Answer:

Hii, okay so the answer is, -3x^3-9x^2-1

Hope this helps!

Step-by-step explanation:

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Complete the square for this equation y=-2x+6x+7

Kamila [148]

Answer:

y=4x+7

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Help and if you could show me how to that be great

Romashka [77]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

π = pi

diameter = 4 yds, so the radius = 2 yds

(radius = diameter ÷ 2)

height = 6 yds

Plug the values into the equation!

πr²h/3

π(2²)(6)/3

π(4)(6)/3

π(24)/3

π(8)

π8 = 8π

So, 8π is your answer!

I hope this helps!

- sincerelynini

4 0

3 years ago

One pile of cards contains the number 2 through 6 in red hearts. A second pile of cards contains the numbers 4 through 8 in blac

nordsb [41]

Answer:

19/25.

Step-by-step explanation:

The total possible number of combinations of 2 cards from the 2 piles = 5*5 = 25.

Possible ways to get sum of 12 or more =

4,8 5,7 5,8 6,6 6,7 6,8 = 6 ways.

So the number of ways to get sum of < 12 = 25 - 6 = 19.

So the required probability = 19/25.

7 0

3 years ago

Read 2 more answers

A square fits exactly inside a circle with each vertices being on the circumference of the circle. The square has a side length

GarryVolchara [31]

Answer:

Therefore,

The value of x is 5.97 cm.

Step-by-step explanation:

Given:

Let the length of side of Square be "x" cm'.

Radius of Circle be "r"

Area of Circle = 56 cm squared

pi = 3.14

To Find:

x = ?

Solution:

We know Area of Circle is given by,

$\textrm{Area of Circle}=\pi r^{2}$

Substituting the values we get

$56=3.14\times r^{2}\\r^{2}=17.83\\Square\ Rooting\\r=\sqrt{17.83}=4.22\ cm$

We have, a square fits exactly inside a circle with each vertices being on the circumference of the circle,

Vertex Angle of a Square is 90°.

In a Circle Diameter Subtends a Right angle,

So it's Diagonal will be the Diameter,

$Diagonal =Diameter$

$Diameter=2\times Radius$

Substituting the values we get

$Diameter=2\times 4.22=8.44\ cm$

Therefore,

$Diagonal = 8.44\ cm$

Also we know that,

Length of Diagonal of a Square for side "x" is given by,

$Diagonal=\sqrt{2}\times x$

Substituting the values we get

$x=\dfrac{8.44}{\sqrt{2}}=5.967\approx 5.97\ cm$

Therefore,

The value of x is 5.97 cm.

3 0

4 years ago

Jeena keeps her recipes in a box with dimensions 7 inches 5 inches and 4 inches what is the volume of the box

Zolol [24]

Answer:

Volume = length x width x height

Volume = 7 x 5 x 4

Volume = 140 cubic inches

Step-by-step explanation:

4 0

3 years ago