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Dmitriy789 [7]
3 years ago
7

Who could help me please:)))I'll apreciate the answers:))))

Mathematics
1 answer:
Wittaler [7]3 years ago
6 0
The answer in order is    b   a     c 

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Can someone explain how I'm supposed to determine whether each pair of ratios form a proportion? I so stuck on it sorry can i ge
Natalka [10]

Step-by-step explanation:

We will learn how to solve proportion problems. We know, the first term (1st) and the fourth term (4th) of a proportion are called extreme terms or extremes, and the second term (2nd) and the third term (3rd) are called middle terms or means.

Therefore, in a proportion, product of extremes  = product of middle terms

example

1. Check whether the two ratios form a proportion or not:

(i) 6 : 8 and 12 : 16;                           (ii) 24 : 28 and 36 : 48

Solution:

(i) 6 : 8 and 12 : 16

6 : 8 = 6/8 = 3/4

12 : 16 = 12/16 = 3/4

Thus, the ratios 6 : 8 and 12 : 16 are equal.

Therefore, they form a proportion.

5 0
3 years ago
h = 3a + 28.6: A pediatrician uses this formula to estimate the height h of a boy, in inches, in terms of the boy’s age a, in ye
professor190 [17]
Based on the model, 28.6 is the estimated increase, in inches, of a boy’s height each year.
5 0
3 years ago
Factor the following polynomial completely.<br> 2x2 – 10x – 28
erastovalidia [21]

Answer:

2(x - 7)(x + 2)

Step-by-step explanation:

Given

2x² - 10x - 28 ← factor out 2 from each term

= 2(x² - 5x - 14) ← factor the quadratic

Consider the factors of the constant term (- 14) which sum to give the coefficient of the x- term (- 5)

The factors are - 7 and + 2 , since

- 7 × 2 = - 14 and - 7 + 2 = - 5 , thus

x² - 5x - 14 = (x - 7)(x + 2) and

2x² - 10x - 28 = 2(x - 7)(x + 2)

5 0
3 years ago
Gcf for 12 and 23 (greatest common factor)
Keith_Richards [23]
The greatest common factor is 1 (one)
3 0
3 years ago
Read 2 more answers
WHO JUST CALLED ME A SIR?
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A good way to remember Pi would be 3.1459. You can remember it in a song or just simply repeat it until you can memorize it.

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3 years ago
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