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Alina [70]
3 years ago
15

Help, this is due now... HELP

Mathematics
1 answer:
kkurt [141]3 years ago
8 0

Answer:

100 1/4

Step-by-step explanation:

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What is the solution for -10 -19<br> x -1<br> x &lt; -1
Natali [406]

Answer:

x=-1

Step-by-step explanation:

6 0
3 years ago
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A pile of sand is in the shape of a cone. The diameter of the sand pile is 18 ft and the height is 10 ft. What is the volume?
Alex17521 [72]

Answer:

Step-by-step explanation:

Since the pile of sand is conical, we would apply the formula for determining the volume of a cone which is expressed as

Volume = 1/3 × πr²h

Where

r represents the radius of the cone.

h represents the vertical height of the cone.

π is a constant whose value is 3.14

From the information given,

Diameter = 18 feet

Radius = Diameter/2 = 18/2

Radius = 9 feet

Height = 10 feet

Therefore,

Volume = 1/3 × 3.14 × 9² × 10

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3 years ago
Solve for x <br> 4 (x – 7) = -8
daser333 [38]
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6 0
4 years ago
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Beatrice is planning a personal budget. Which part of her budget will be easiest to change?
Lerok [7]

Answer: It’s C

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4 0
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Explain what the following statement means: Polynomials are closed under the operations of addition and subtraction. Provide one
kirza4 [7]
1. Polynomials are closed under the operations of addition and substraction mean that:

If we add two polynomials, the result is still a polynomial (so still in the set of polynomials)

Also, If we subtract 2 polynomials, the result is a polynomial.

2. Example: given the polynomials :

M(x)= 3x^{2}+5x-1 and N(x)=-6 x^{4}+9 x^{3}+ x^{2} -2x-1

Addition example: 

M(x)+N(x)=(3x^{2}+5x-1)+(-6 x^{4}+9 x^{3}+ x^{2} -2x-1)=

-6 x^{4}+9 x^{3}+x^{2} +3x^{2}-2x+5x-1-1=-6 x^{4}+9 x^{3}+4x^{2}x-2


Subtraction example: 

N(x)-M(x)=(-6 x^{4}+9 x^{3}+ x^{2} -2x-1)-(3x^{2}+5x-1)

=-6 x^{4}+9 x^{3}+ x^{2} -2x-1-3x^{2}-5x+1=
=-6 x^{4}+9 x^{3}+ x^{2} -3x^{2}-2x-5x-1+1=-6 x^{4}+9 x^{3}-2x^{2}-x

So both M(x)+N(x) and N(x)-M(x) are polynomials
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