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Lelu [443]
3 years ago
12

4, 21, 38, common difference

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
7 0

Answer:

17

Step-by-step explanation:

  1. 38 - 21 = 17
  2. 21 - 4 = 17
  3. The difference between each pair of numbers above is 17, so that is the common difference.

I hope this helps!

weeeeeb [17]3 years ago
4 0

Answer:

common difference = 2nd term - first term = 21-4=17

Step-by-step explanation:

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kobusy [5.1K]
8kg=8000g

8000/500=16
16-2=14
5 0
3 years ago
After reading a book foe English class, 100 students were asked whether or not they enjoyed it. Nine twenty-fifths of the class
Katena32 [7]

Answer:

The number of students who liked the book was 64.

Step-by-step explanation:

After reading a book for English class, 100 students were asked whether or not they enjoyed it.

Now, given that nine twenty-fifths of the class did not like the book.

So, \frac{9}{25} of the whole class did not like the book.

Then, the fraction of the class who did like the book was (1 - \frac{9}{25}) = \frac{16}{25}.

Therefore, the number of students who liked the book was (100 \times \frac{16}{25}) = 64. (Answer)

7 0
3 years ago
Is 4y=x a direct variation
worty [1.4K]
The direct variation equation is y =kx

Lets see:-

4y/4 = x/4
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<span>Answer: Yes, this is a direct variation </span>
6 0
3 years ago
Read 2 more answers
The area of a trapezoid is 168cm2. The height is 16cm and the length of one of the parallel sides is 9cm. Find the length of the
dmitriy555 [2]

Answer:

12 cm

Step-by-step explanation:

The formula for the area of a trapezoid is written as:

1/2(b1 + b2)h

h = height = 16 cm

b1 = Length of one parallel side = 9cm

b2 = Length of second parallel side = ?

Area of trapezoid = 168cm²

The formula to find the length of the second parallel side =

b2 = 2A/h - b1

b2 = 2 × 168/16 - 9

b2 = 336/16 - 9

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b2 = 12cm

Therefore, the length of the second parallel side is 12 cm

3 0
3 years ago
Find the are of the SHADED region.
Mazyrski [523]
First find the area of the parallelogram


Area of parallelogram = b x h
= 12 x 7
= 84

Then find area of kite

Area of kite = (xy)/2
= (7 x 12)/2
= 84/2
= 42

Now we are gonna subtract the area of the kite from the area of the parallelogram.

84 - 42 = 42

Therefore the area of the shaded region is 42.
7 0
3 years ago
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