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Nady [450]
3 years ago
14

Which is the value of this expression when j= -2 and k= -1?

Mathematics
1 answer:
UNO [17]3 years ago
3 0

Answer:

-64

Step-by-step explanation:

I just simplify the like terms to make it easier visually. After that, I plugged in j and k and solve for the answer which is -64.

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Rewrite standard form equation in graphing form and then sketch the graph
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Türkiye cumhuriyeti ccc
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3 years ago
If 2x + 6y = 16, which of the following expressions represents x in terms of y?
Andrej [43]

Answer:

x=-3y+8

Step-by-step explanation:

2x+6y=16

2x=16-6y

2x=-6y+16

x=-6/2y+16/2

x=-3y+8

7 0
3 years ago
a father is now 38 years older than his son. Ten years ago he was twice as old as his son. let x represent the age of the son no
Helga [31]

The present age of father is 86 years old and present age of son is 48 years old

<em><u>Solution:</u></em>

Given that, a father is now 38 years older than his son

Ten years ago he was twice as old as his son

Let "x" be the age of son now

Therefore, from given,

Father age now = 38 + age of son now

Father age now = 38 + x

<em><u>Ten years ago he was twice as old as his son</u></em>

Age of son ten years ago = age of son now - 10

Age of son ten years ago = x - 10

Age of father ten years ago = 38 + x - 10

Then we get,

Age of father ten years ago = twice the age of son ten years ago

38 + x - 10 = 2(x - 10)

28 + x = 2x - 20

2x - x = 28 + 20

x = 48

Thus son age now is 48 years old

Father age now = x + 38 = 48 + 38 = 86

Thus present age of father is 86 years old and present age of son is 48 years old

7 0
3 years ago
Permutations of the word "Congratulations"​
Mice21 [21]

Answer:

There are 15 letters, but if the two A's must always be together, that's the same as if they're just one letter, so our "base count" is  14! ; note that this way of counting means that we also don't need to worry about compensating for "double counting" identical permutations due to transposition of those A's, because we don't "count" both transpositions. However, that counting does "double count" equivalent permutations due to having two O's, two N's, and two T's, so we do need to compensate for that. Therefore the final answer is  14!/(23)=10,897,286,400

5 0
2 years ago
I need help lol. please give me an explaination as well ty &lt;3​
Feliz [49]
You need to write it out such as number 8 would be 10x10x10x10 so for every number on top you multiply the number by itself
3 0
3 years ago
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