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Ugo [173]
4 years ago
11

Give five elements of the following sets.

Mathematics
1 answer:
Dima020 [189]4 years ago
7 0

Answer:

Find the answer below.

Step-by-step explanation:

1. A = {mountain, valley, plateau, plains and hills}

  • A landform refers to a geomorphic or natural feature of the Earth's surface, which typically makes its terrain.

2. B = {23, 29, 31, 37 and 41}

  • A prime number can be defined as any number that is greater than one (1) and can only be divided by itself or one (1). In this case, they are greater than 20 but less than 50.

3. C = {2, 4, 8, 10 and 12}

  • An even number can be defined as any number that can be divided by two (2) without any remainder. In this instance, they should be between one (1) and twenty (20).

4. D = {2/3, 1/2, 3/4, and 1/5}

  • A fraction that is less than one (1) refers to a proper fraction. Therefore, proper fractions must have the value of their numerator to be less than the value of their denominator.

5. E = {ant, angel, angle, anaconda, and ark}

  • A noun can be defined as the name of any place, people, animal or things. In this context, the nouns should all start with the letter "a."
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The sides of a whiteboard are 16 inches by 10 inches. How many 2 inch by 2 inch Post-it notes will be needed to cover the entire
sertanlavr [38]

Answer:

40 Post-it notes

Step-by-step explanation:

10/2 = 5 on the side that measures 10"

16/2 = 8 on the side that measures 16"

5 x 8 = 40 post-it notes

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It’s D. 4

Step-by-step explanation:

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Evaluate: -ab-a if a= -4 and b= -5 (A)-24 (B)-16 (C)24 (D)25
zlopas [31]

-ab-a=-(-4)(-5)-(-4)=-20+4=-16

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8 0
3 years ago
Jade invested in the stock market. The weekly change in value of her stock, in dollars, over 4 weeks was +23.65, -22.20, -12.75
Anastasy [175]

Answer:

<h3>The average weekly change in value of Jade's stock in dollars is -1.3225</h3>

Step-by-step explanation:

Given that Jade invested in the stock market.

The weekly change in value of her stock, in dollars, over 4 weeks was +23.65, -22.20, -12.75 and +5.98.

<h3>To find the  average weekly change in value of her stock in dollars :</h3>

The average weekly change in value of Jade's stock is given by Average=\frac{sum of the weekly changes in value of her stock in dollars}{total number of weeks}

Average=\frac{23.65+(-22.20)+(-12.75)+5.98}{4}

=\frac{23.65-22.20-12.75+5.98}{4}

=\frac{29.63-34.92}{4}

=\frac{-5.29}{4}

=-1.3225

Therefore Average=-1.3225

<h3>Therefore the average weekly change in value of Jade's stock in dollars is -1.3225</h3>
5 0
3 years ago
The second of two numbers is 3 less than twice the first. Their sum is 36. Find the numbers.
swat32
<span>The first number = x
The </span>second number = 2x-3

x + 2x-3 = 36
3x = 36+3
3x = 39
x = 39/3
x = 13

The first number = x = 13
The second number = 2x-3 = 2*13 - 3 = 26 - 3 = 23
7 0
4 years ago
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