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Pani-rosa [81]
2 years ago
12

What happens to the inequality symbol when you multiply or divide each side by a positive number?

Mathematics
1 answer:
Pani-rosa [81]2 years ago
3 0
If you multiply or divide by a positive number the inequality sign DOES NOT CHANGE!

If you multiply or divide by a negative number the inequality sign flips around and becomes the opposite.
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A number, x, rounded to 1 decimal place is 3.7<br>Write down the error interval for x.​
alekssr [168]

Answer:

3.65 \leqslant x \leqslant 3.75

Step-by-step explanation:

The error in rounding a number is half of the unit of measure.

The number was rounded to the nearest 0.1 unit so the error is 1/2×0.1, which equals 0.05.

Now we add 3.7 and 0.05, which equals 3.75 and we also take 3.7 - 0.05, which equals 3.65

So, the error interval is:

3.65 \leqslant x \leqslant 3.75

4 0
3 years ago
I WILL MARK AS BRAINLIEST! Simplify
aev [14]
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D. 26
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3 years ago
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Let n (AUB)=32n(B)=16and n(ANB)9 find n (A)​
Lubov Fominskaja [6]

Answer:

32

Step-by-step explanation:

n(A∪B)=n(A)+n(B)−n(A∩B)−−−−−−−(1)

Given n(A)= ? we represent with x

n(B)= 16

n(A∪B) = 32

Substituting in equation 1 to get n(A)

32  = n(A) + 9 − 9

⇒n(A) = 32 − 0

n(A)  = 32

to confirm this we put the values into the formula below

n(A∪B)=n(A)+n(B)−n(A∩B)−−−−−−−(1)

32 =  32 + 9 - 9

4 0
2 years ago
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Could anyone please help?​
natima [27]

Answer:

b+3a

Step-by-step explanation:

MN=AN+AM

AN=0.5*AB

AB=OA+OB=4a+2b

AN=2a+b

AM=OA-OM=4a-3a=a

MN=2a+b+a=3a+b

3 0
3 years ago
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What is the value of n 9 times 27+2 times31-28
Kay [80]
9•27+2•31-28= ? Is that what you are asking?
8 0
3 years ago
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