MATHEMATICS HIGH SCHOOL

Perry observes the opposite, parallel walls of a room. In how many lines do the planes containing the walls intersect? Perry observes the opposite, parallel walls of a room.
In how many lines do the planes containing the walls intersect?

a) 0
b)1
c)2
d)3

Answers

Answer 1
Answer: "0" would be the number of lines among the choices given in the question that the planes containing the walls will intersect. The correct option among all the options that are given in the question is the first option or option "A". As the walls are parallel to each other, so the planes containing the walls would never intersect.

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Answers

Answer:3/8

Step-by-step explanation:

Pls someone help me with this question i provided a picture below

Answers

Answer: (x-8)(x+9)

To rewrite the expression in the form (x+a)(x+b), you must factor the expression. First split the equation into two sides. Since 9 times 8 equals 72, we want to figure out how they add to equal 1 (which is the x).
If 9 times -8 equals -72, this works. -8 + 9 = 1. This translates to -8x + 9x = x. This is how we split it.

x^2 - 8x + 9x - 72
(x^2 - 8x) + (9x - 72)
Since x^2 and -8x both share x, factor out x from the parentheses. And since 9x and -72 are both divisible by 9, factor out 9.
x(x - 8) + 9(x - 8)

We can now factor out the common term, x-8. Then the x and 9 outside the parentheses will be combined.
(x-8)(x+9).
This is our answer

How many nickles and dimes are $5.20 if there are six times more nickles than dimes?

Answers

In looking for the number of nickel and dimes we need to establish first equations:
n = $0.05
d = $0.1

0.05n + 0.1d = 5.20
0.05n = 6 (0.1d) ; n = 0.083d

Then we will solve it by substitution:
0.05(0.083d) + 0.1d = 5.20
0.42d + 0.1d = 5.20
0.52d = 5.20
d = 10

n = 0.083(10)
n = 0.83

What is (4x-2)*6(2x+7) in quadratic expression

Answers

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Answers

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Write three powers with whole-number bases that have values greater than 120 and less than 130. The three powers, in order from least to greatest, are , , and .

Answers

Answer:

11²= 121

5³= 125

2⁷= 128

Step-by-step explanation:

The whole numbers can be multiplied with themselves to get numbers between 120 and 130 .

For example

11*11= 121

This can be written in the exponent form as

11²= 121  which is between  120 and 130.

Also

5*5*5= 125  or

5³= 125  which is also between  120 and 130.

and

2*2*2*2*2*2*2= 128

2⁷= 128   which is  between  120 and 130 as required.

We see that as the powers or exponent increases the whole number is decreased.
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