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Lyrx [107]
3 years ago
12

8 ( j - 4 ) = 2(4j - 16 )

Mathematics
2 answers:
Tanya [424]3 years ago
7 0
8j-32=8j-32
J=j
Js value is infinite
natima [27]3 years ago
5 0
8(j) + 8(-4) = 2(4j) + 2(-16)

8j - 32 = 8j - 32
-8j           -8j

-32 = -32   Infinite many solutions
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Find m abc (2x+14) (x+7)
alina1380 [7]
M equals 3x+21 because you add 2x+1x=3x.then you add 14+7=21.then you combine them together to get 3x+21
3 0
2 years ago
Add 15 to x to find y
Arturiano [62]

Answer:

If you have to find y you would get rid of the x. so if the x is alone then you do the opposite of the equation to get y by it's self and when you do you have what y equals to

Step-by-step explanation:

3 0
3 years ago
A ladder is leaning up against a house. The ladder is 20 feet long and the base of the ladder is 12 feet away from the house. Ho
MrRa [10]

Answer:

16 feet

Step-by-step explanation:

The length of the ladder=20 feet

Distance from the base of the ladder to the house = 12 feet

You will notice that a wall is vertical and the ladder makes an angle with the horizontal ground(making it the hypotenuse). This is a right triangle problem.

To find the how far up the house can the ladder can reach, we simply find the third side of the right triangle.

From Pythagoras theorem

Hyp^2=Opp^2+Adj^2\\20^2=12^2+Adj^2\\Adj^2=400-144\\Adj^2=256\\Adj=\sqrt{256}=16

The third side of the right triangle is 16. Therefore the ladder leans 16 feet from the ground.

8 0
3 years ago
Read 2 more answers
Mr. Harrow has eight boys and six girls in his Honors Pre-calculus class. If he randomly chooses two students, one at a time, wh
Sergeu [11.5K]

Answer: 15/91 which is choice B

=================================================================

There are two methods to find this answer.

Method 1) We have 6 girls and 8+6 = 14 students. The probability of picking a girl is 6/14 = 3/7. After the first girl is chosen, we have 5 girls left out of 14-1 = 13 students overall. The probability of picking another girl (assuming the first selection was a girl) is 5/13. Multiply these probabilities: (3/7)*(5/13) = (3*5)/(7*13) = 15/91

--------------------

Method 2) We can use the nCr combination formula. Order does not matter.

We have nCr = 6 C 2 = 15 ways to pick 2 girls. See the attached image below for the steps (figure 1)

Out of nCr = 14 C 2 = 91 ways to pick 2 students. See the attached image below for the steps (figure 2)

So that's another way to get the answer 15/91.

5 0
3 years ago
Read 2 more answers
Freeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee pointsssssssssssssssssssssssssssssssssssssssssssssss
GaryK [48]

Answer:

thanks?

Step-by-step explanation:

6 0
2 years ago
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