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1 year ago

Simplify 9+ (-2)^3 HELP PLEASE

Mathematics

2 answers:

Oliga [24]1 year ago

8 0

Answer:

Step-by-step explanation:

Raise -2 to the power of 3 = -8

9-8= 1

Mila [183]1 year ago

7 0

Answer:

Step-by-step explanation:

A number raised to the 3rd power is equal to that number multiplied by itself twice. Below I have expanded the expression to visualize this process. If this makes it more confusing, the main way is just to go from line 1 to line 4.

9 + (-2)³ <---- Original expression

9 + (-2 x -2 x -2) <---- (-2)³ expanded

9 + (4 x -2) <---- -2 times -2

9 + (-8) <---- 4 x -2

1 <---- 9 - 8

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Nataly [62]

Answer:

Step-by-step explanation:

I mutiplied 2 to the 5th power and it equals 32

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2 years ago

Given the function F (x) = x2 -2x -5 determine the average rate of change of the function over the interval -5 < x <6.

KengaRu [80]

Answer:

Step-by-step explanation:

Here f(x) = x^2 - 2x - 5, which at x - -5 is 25 +10 - 5 = 30 and at x = 6 is 19.

The average value of a function f(x) over an interval [a, b] is

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2 years ago

19. Express 9/4

DochEvi [55]

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3 0

2 years ago

This rectangular prism is intersected by a plane that contains points B, D, H, and F.

tankabanditka [31]

Answer:

The perimeter of the cross section is 33.3 cm

Step-by-step explanation:

Given: A rectangular prism with height 6 centimeters, length 8 centimeters, and width 7 centimeters. The rectangular prism is intersected by a plane that contains points B, D, H, and F.

We have to determine the perimeter of the cross section.

Since, The plane is drawn diagonally such that it intersect the points B, D, H, and F.(as shown in figure below)

Perimeter of a figure is the sum of its outer boundaries.

We first find the length of diagonal HF.

Since, HGFE , is a rectangle

So, Diagonal of rectangle is given by

$D=\sqrt{Length^2+breadth^2}$

Here, Length = 8 cm

and breadth = 7 cm

So, $D=\sqrt{8^2+7^2}=\sqrt{64+49}\approx 10.63$

Thus, HF = DB = 10.63 cm

Therefore, Perimeter of cross section is DB + BF +FH + DH

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Thus, the perimeter of the cross section is 33.3 cm

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2 years ago

A rubber ball is bounced from a height of 9 meters and bounces continuously .Each successive bounce reaches a height that is a t

klio [65]

Answer: 54

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2 years ago