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maks197457 [2]
3 years ago
8

In a parallelogram one side is 5x-4 and the consecutive side 2x+3.If the perimeter is 166cm,find the lengths of the sides.

Mathematics
1 answer:
evablogger [386]3 years ago
4 0

Answer:

5x - 4 = 56

2x + 3 = 27

Step-by-step explanation:

2(5x - 4 + 2x + 3) = 166

10x - 8 + 4x + 6 = 166

14x - 2 = 166

     + 2     +2

14x = 168

divide both sides of the equal sign by 14

12

5(12) - 4 = 60 - 4 = 56

2(12) + 3 = 24 + 3 = 27

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2. The Martian Zoological Society has a unique display of the native monocephalous fauna:
german

Answer:

There are 12 pentapods and 8 Tripods, which in total add up to 84 feet.

Step-by-step explanation:

Given that both the Tripods and the Pentapods have, at least, 3 feet (the Pentapods have 5), and that in total between both groups they add 20 heads and 84 feet, the following logical reasoning can be made:

If there are 20 heads, there are 20 Martians in all. Each of them has, at least, 3 feet, with which in principle the 20 Martians would add up to a total of 60 feet (20 x 3). Therefore, there is a surplus of 24 feet (84 - 60).

If the Pentapods have 2 feet more than the Tripods, the number of Pentapods in the total Martians is determined by that difference. Thus, if there are 24 feet left, there are 12 Pentapods (24/2).

Therefore, in the group of Martians there are 12 pentapods (12 x 5 = 60) and 8 Tripods (8 x 3 = 24), which in total add up to 84 feet (60 + 24).

6 0
3 years ago
3 ten thousands 2 thousands *10
Ad libitum [116K]

3 the thousands = 30.000

2 thousands = 2.000

*10 = times ten


30.000 + 2.000 times 10

32.000 * 10

320.000

3 0
2 years ago
Hey can you please help me posted picture of question :)
IRINA_888 [86]
If you observe carefully, you can see that the graph is crossing x-axis at the points 1 and 9. This means x = 1 and x = 9 are the roots of the polynomials and x - 1 and x - 9 are thus the factors of the polynomial.

We can express the polynomial as the product of its factors. So the above polynomial can be expressed as (x - 1)(x - 9)

Thus, the answer to the question is option D
4 0
3 years ago
Evaluate b^2 c^-1 for b = -4 and c = 2.
Burka [1]

Answer:

8

Step-by-step explanation:

b^2 c^-1

Let b=-4 and c =2

(-4)^2 * (2)^-1

The negative exponent means it is in the denominator

(-4)^2 / (2)^1

16/2

8

4 0
3 years ago
What is the point slope form of the line with slope −14 that passes through the point (−2, 9)?
RoseWind [281]

Answer:

the point slope is: y-9= -14(x+2)

7 0
2 years ago
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