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Ierofanga [76]
3 years ago
7

What equation is equal to 11×-12

Mathematics
2 answers:
Andreyy893 years ago
7 0

Answer:

132

Step-by-step explanation:

Nimfa-mama [501]3 years ago
3 0
_______-12 x 11________
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Pleaseee help i need this to finish my work due tomorrow
yan [13]

Answer:

40

Step-by-step explanation:

11x+13=90

11x=77

x=7

49-9=40

4 0
3 years ago
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An office is 20 feet long, 15 feet wide, and 12 feet high. it costs about 9 cents per year to air condition one cubic foot of sp
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27$ because you do 20*15*12 then 3600*0.09 and divide that answer by 12 which is 27
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Good science requires that you record your observations accurately.<br><br><br><br> TrueFalse
enyata [817]

Answer:

True.

Step-by-step explanation:

6 0
2 years ago
Alonzo deposits 300 into an account that pays simple interest at a rate of 4% per year . How much interest will he be paid in th
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5 0
3 years ago
Show that n(n+1)(n+2) is divisible by 6<br>Solution<br>(​
vladimir2022 [97]

Proof by induction

Base case:

n=1: 1*2*3=6 is obviously divisible by six.

Assumption: For every n>1 n(n+1)(n+2) is divisible by 6.

For n+1:

(n+1)(n+2)(n+3)=

(n(n+1)(n+2)+3(n+1)(n+2))

We have assumed that n(n+1)(n+2) is divisble by 6.

We now only need to prove that 3(n+1)(n+2) is divisible by 6.

If 3(n+1)(n+2) is divisible by 6, then (n+1)(n+2) must be divisible by 2.

The "cool" part about this proof.

Since n is a natural number greater than 1 we can say the following:

If n is an odd number, then n+1 is even, then n+1 is divisible by 2 thus (n+1)(n+2) is divisible by 2,so we have proved what we wanted.

If n is an even number" then n+2 is even, then n+1 is divisible by 2 thus (n+1)(n+2) is divisible by 2,so we have proved what we wanted.

Therefore by using the method of mathematical induction we proved that for every natural number n, n(n+1)(n+2) is divisible by 6. QED.

6 0
3 years ago
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