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Hitman42 [59]
3 years ago
9

N(U)=90, n(A)=35, n(B)=45 Then n(A’ u B)= ?

Mathematics
1 answer:
Akimi4 [234]3 years ago
6 0
I did y’all win the first time and it is a great way home game tmr is the best season for ya
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An elevator is rated to safely hold ten 250 lb people. The elevator is loaded as follows: three 600 lbs cartons of books, Jim (1
iris [78.8K]
To do this, we will need to find how much the elevator can hold in all. Multiply 10 by 250 to get 2500. Since it can also hold 10% more, multiply 2500 and 0.10 to find out how much 10% is. You get 250. Add 2500 and 250 to get how much the elevator can safely hold. It would be 2750.

To find out how much more weight can be added, first find out how much weight is on the elevator collectively. (books) 600+ (Jim) 180+ (Gavin) 330 + (Deb) 250 + (Susan) 120 = 1480. Subtract this from the amount the elevator can hold, and you get how much more weight can be added. 2750-1480= 1270.

The elevator can hold 1270 more ibs.
6 0
3 years ago
Read 2 more answers
why is using the metric system superior to using the standard system of measurement... Please someone help I need this and I tri
PilotLPTM [1.2K]
Metric is used world-wide and is used everywhere except in english places (britan and USA)

some examples why metric is nice

base 10 system
1cm=10mm=0.1m=0.01km
1cm^3=1ml
1000cm^3=1L
1000ml=1L

0 C⁰=freezing tempurature
100 C⁰=boinling tempurature



in english
12in=1foot
3ft=1yd
16oz=1lb
8oz=1cup
3tsbs=1tbs
2c=1pt
2pt=1qt
4qt=1gal
32 F⁰=freezing
2hundred something=boiling


metric is nice because everything is in multiplules of 10

and also this exerpt from a book
"<span>In metric, one milliliter of water occupies one cubic centimeter, weighs one gram, and requires one calorie of energy to heat up by one degree centigrade which is 1 per cent of the difference between its freezing point and its boiling point. An amount of hydrogen weighing the same amount has exactly one mole of atoms in it. Whereas in the American system the answer to <em>'How much energy does it take to boil a room-temperature gallon of water?'</em> is go **** yourself because you can't directly relate any of those quantities "</span>
7 0
3 years ago
From my last post here’s the paragraph
DanielleElmas [232]
Is that a snake in the pic
4 0
3 years ago
Need help on this problem <br> Multiple questions
umka21 [38]

answer: a. input, output

explanation: this is because the x values can not repeat in a function. if they do, they would not pass the vertical line test, and therefore it would not be a function. so, each input and output must be different values. :)

7 0
3 years ago
Evaluate the numerical expression 4(8 - 2) = (-3) + 7
Fofino [41]

Answer:

4 ( 8 - 2 ) = (-3) + 7 -> this is a false statement

Step-by-step explanation:

4 ( 8 - 2 ) = ( -3 ) + 7

Simplify the parenthesis

4 ( 6 ) = (-3) + 7

Multiply;

24 = (-3) + 7

Add, remember, adding a negative number and a positive number is the same as subtracting the negative number from the positive number,

24 = 4

This statement is not true.

8 0
3 years ago
Read 2 more answers
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