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yulyashka [42]
3 years ago
6

Please help me I’m super stuck

Mathematics
1 answer:
andrezito [222]3 years ago
3 0

Answer:

What's the question?

Step-by-step explanation:

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Need math help asap please! :/ thanks
Dominik [7]

The rule to remember about generating the perpendicular family to a line is we swap the coefficients on and x and y, remembering to negate one of them. Then the constant is set directly from the intersecting point.


So we have


y = 3x + 2


-3x + 1y = 2


Swapping and negating gets the perpendiculars; the constant is as yet undetermined.


1x + 3y = constant


Since we want to go through (0,2), we could have just written


x + 3y = 0 + 3(2) = 6


3y = -x + 6


y = (-1/3) x + 2


Third choice


5 0
3 years ago
Thuy rolls a number cube 7 times. which expression represents the probability of rolling a 4 exactly 2 times?
Nady [450]
The result of rolling a number cube 7 times is a 7-digit number composed of digits 1,2,3,4,5 and 6 so that digits can repeat. The total number of possibilities is 6^7.

The number of possibilities where 4 appears exactly two times is 5^5*(7!-6!/2).
 5^5 is the number of 5-digits numbers composed of digits 1,2,3,5 and 6 so that digits can repeat.
7! is the number of permutations of digits 1,2,3,4,4,5 and 6.
6! is the number of permutations of digits 1,2,3,{4,4},5 and 6.
We don't want to subtract all numbers where digits 4 appear side by side. That's why we must divide 6! by 2.

Finally, the probability is P=5^5(7!-6!/2)/7^7
6 0
3 years ago
Read 2 more answers
Factor -y - 8.<br> Please hurry it’s timed
max2010maxim [7]

Answer:

need more info

Step-by-step explanation:

3 0
3 years ago
What is the following product?
Aneli [31]
Your correct it’s the first one
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3 years ago
What is the sixth term of (a - y)7?<br><br> 21a3y4<br><br> -21a3y4<br><br> 21a2y5<br><br> -21a2y5
Katena32 [7]
Im guessing the fourth answer
3 0
3 years ago
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