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Levart [38]
3 years ago
12

What's A-B if A={1,2,3,4,5} and B={4,5,6,7}​

Mathematics
1 answer:
siniylev [52]3 years ago
5 0

Answer:

A-B= -7

Step-by-step explanation:

If A is 1+2+3+4+5 and B= 4+5+6+7

So a=15 and b=22

15-22 = -7

You might be interested in
Which probability formulas are always true for any events A and B.
zhenek [66]
P(A U B) = P(A) + P(B) - P(A and B)

P(A | B) = P(A and B) / P(B)
6 0
3 years ago
Find the missing values.
Gnom [1K]
5y + 7 = 52
5y = 52 - 7
5y = 45
y = 9

\frac{40}{60} = \frac{x+12}{42} 

\frac{2}{3} = \frac{x+12}{42} 

3(x+12) = 2 x 42
3x + 36 = 84
3x = 84 - 36
3x = 48
x = 16

Angle H = 180 - 52 - 36 = 92
5 0
3 years ago
PLEASE HELP ON THESE TWO QUESTIONS ILL GIVE BRAINLIEST AND EVERYTHING ELSE
kirza4 [7]

Answer:

1)   p = 208/8

2) p = 9.54/6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve for t<br> -18 = -3t<br> t = (_)
andriy [413]

Answer:

3×6=18 t= (6)

I hope this helps by using division

8 0
3 years ago
Read 2 more answers
A regular hexagon is formed by six equilateral triangles this makes it somewhat easy to find the area of the hexagon using the p
frozen [14]
1/2 of the side length p= 1/2 x 4 =2
centre angle=360/6=60 degrees

The APOTHEM bisects or divides the centre angle into two equal angles
1/2 of the centre angle=60/2=30 degrees
tan 30 degrees = 2/APOTHEM
APOTHEM=2/tan 30= 3.46 cm

The APOTHEM is the perpendicular height of the equilateral triangle given in the diagram.
Area of the equilateral triangle
=1/2 x 4 x 3.46
=6.93 cm^2
Area of the regular hexagon= 6 x area of the equilateral triangle= 6 x 6.93 =41.6 cm^2

Hope this helps!
4 0
3 years ago
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