3 years ago

Prove that if a is a subset of b then int(a) is a subset of int(b) g

Mathematics

1 answer:

ZanzabumX [31]3 years ago

4 0

S in A does not necessary mean that it is in the interior of A since A is an open set.

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Which of the following expressions “ the sum of n and the sum of n and 6 ?

faltersainse [42]

what do u mean by that

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3 years ago

The product of 3 consecutive odd numbers is 2,145. Enter a simplified expression for finding the numbers. Let n be the first odd

Arlecino [84]

Answer:

11, 13 and 15.

Step-by-step explanation:

Let's say that the odd number is "x". If x is for example 15, then the next ODD number would be 15+2=17 and the one after that would be 15+2+2=15+4=19.

Applying that here, we get:

Odd number* the next odd number*the next odd number=2145

x*(x+2)*(x+4)=2145

x*(x^2+4x+2x+8)=2145

x^3+6x^2+8x=2145

By solving the polynomial, you get x=11.

Which makes our three numbers: 11, 13 and 15.

11*13*15=2145. The answer checks.

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3 years ago

What is the value of x?

frez [133]

$\left\{\begin{array}{ccc}x+2y=4&\text{multiply both sides by 5}\\4x-5y=42&\text{multiply both sides by 2}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}5x+10y=20\\8x-10y=84\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad13x=104\qquad\text{divide both sides by 13}\\\\\boxed{x=8}\\\\Answer:\ \boxed{\boxed{x=8}}$

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3 years ago

Use the functions f(x)=10-9/2x, g(x)=|-3x+16|, and h(x)=-x^2+8<br> Find h(a-4). urgent please answer

stich3 [128]

Answer:

ummmmm

Step-by-step explanation:

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3 years ago

9 2/5-3 4/10<br> yo anyone have the answer

mamaluj [8]

Answer:

Step-by-step explanation:

9 and 2/5 is the equivilent to 9 and 4/10

9 4/10 - 3 4/10 = 6 0/10

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2 years ago