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SVETLANKA909090 [29]
3 years ago
8

Which equations support the fact that rational numbers are closed under addition?

Mathematics
1 answer:
scoundrel [369]3 years ago
5 0

Answer:

3/16+3/16=6/16

Step-by-step explanation:

HOPE ITS HELP YOU

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George Costanza is standing on top of a lighthouse that is 210 feet high. He sees his friends Jerry and Kramer in a boat. The an
notsponge [240]

Answer:

412.15 ft to the nearest hundredth

Step-by-step explanation:

You have to use the tangent function since you are given one leg of a right triangle and you are looking for the other leg

Let x = the distance from boat to lighthouse

So, tan 27 = 210/x

x tan 27 = 210

x = 210/tan 27

x = 412.14820  = 412.15 ft to the nearest hundredth

8 0
3 years ago
How does a small outlier affect the data set?
leva [86]
A small outlier could affect the whole data set because it could reduce the mean, or make the average of the whole data set smaller.

An example would be the data set could be 1, 8, 9, 10

To find the mean you would add everything together then divide it by the number of numbers you just added together. The mean of this set would be 28/4 which equals 7. Now, if the outlier were -8 instead of 1, then the mean would be much different.

~Hope this helped!~
6 0
3 years ago
IM IN NEED...BRAINLIEST!! What does a|b mean in mathematics?
Rudiy27

Answer: It is the area of the base

Step-by-step explanation:

"B" represents the area of the base so if the base is a square than a capital "B" means to find the area of the base (square). To find the area of a square it would be length x width.

5 0
4 years ago
Read 2 more answers
What is the factorization of the trinomial below?<br> 2x^2-16x+30
PilotLPTM [1.2K]

Answer:

2(x²-8+15)

X1/2=8+-(64-60) /2= 8+-2 /2=

10/2=5 or

6/2=3

So the answer is C. 2(x-3)(x-5)

7 0
3 years ago
What is the value of f in f/3+22=17
tigry1 [53]

Answer:

F = 15

Good luck! Have a wonderful day!

6 0
3 years ago
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