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3 years ago

I NEED HELP WITH MY MATHS HOMEWORK PLEASE!!

Mathematics

2 answers:

Inessa05 [86]3 years ago

8 0

<h3>Answer: 1/12</h3>

Explanation:

The notation $A \cap B$ means "the overlapped region between circles A and B". There is only one value in this region, and it is the "8". This is in the lower half of this region as the upper half is empty.

There are 12 values in the set {2,4,6,8,10,12,14,16,18,20,24} which we can see by counting them out, or we can note how 24 = 2*12 and how we started with 2 = 2*1. So basically we have...

2 = 2*1
4 = 2*2
6 = 2*3
8 = 2*4
10 = 2*5
12 = 2*6
14 = 2*7
16 = 2*8
18 = 2*9
20 = 2*10
22 = 2*11
24 = 2*12

So again we have 1 value in the overlapped region between A and B, out of 12 values total. So that's why the answer is 1/12.

german3 years ago

6 0

Answer:

What is your exact question?

Step-by-step explanation:

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90,100,120,120,140 calculate the median distance

skad [1K]

Answer: 120

Step-by-step explanation:

The median of a given set for numbers will be gotten when we arrange the numbers that are given in either ascending or descending order and then get the number in the middle.

Therefore, since we are given 90,100,120,120,140, it means that we have 5 numbers and the 3rd number will be the median distance. Thus will be: = 120

4 0

3 years ago

Y = 4 + 6x Siope-interce What linear equation form is this equation written in?

uysha [10]

Answer:

We can write this equation in slope-intercept form

where

is the slope and

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We know

−

and

, so we can insert these into the equation to get

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Hope this helps!

7 0

2 years ago

PLEASE HELP!!!!

pogonyaev

Answer:

30.667, in 1 hour = 40 miles

Step-by-step explanation:

Set up a proportion so 1.5 miles / 2.25 minutes.

So 1.5/2.25 = x/46

solve for x 1.5(46)/2.25 = x so x = 30.667

In one hour is 60 minutes so 1.5(60)/2.25 = x

8 0

2 years ago

How is |3+10| = |3| + |10| equal

Morgarella [4.7K]

Answer:

First we must figure out what the question means. It is asking how the absolute value of 3+10 is equivalent to the absolute value of 3 plus the absolute value of ten.

Next we should solve the expressions: The absolute value of 3 plus 10 is 13. The absolute value of 3 plus the absolute value of 10 is 13. 13 and 13 are the same number.

Therefore, the expressions are equivalent. Thus, having your answer.

8 0

2 years ago

Two planes left simultaneously from the same airport and headed in the same direction towards another airport 3600 km away. The

ExtremeBDS [4]

Answer:

800 kph
600 kph

Step-by-step explanation:

Equation

Let s represent the speed of the faster plane. Then its travel time is ...

time = distance/speed = 3600/s

travel time for the slower plane is ...

time = distance/speed = 3600/(s -200)

The difference in these times is 1.5 hours, so we have ...

3600/(s -200) -3600/s = 1.5

Solution

Multiplying by (2/3)s(s -200), we get ...

2400(s) -2400(s -200) = s(s -200)

s^2 -200s -480000 = 0 . . . . . . . . . . rewrite in standard form

(s -800)(s +600) = 0 . . . . . . . . . . . . . factor

The positive value of s that makes a factor zero is s = 800.

Conclusion

The speed of the faster plane was 800 km/h; of the slower plane, 600 km/h.

_____

Check

The travel time for the faster plane was 3600/800 = 4.5 hours. For the slower plane, 3600/600 = 6 hours, a difference of 1.5 hours.

6 0

2 years ago