It should be 10, when there is a double negative the signs become positive
The period of the function is that distance where the function becomes equal again.
We have then:
Part 1:
The period of the function is:
T = 3
Part 2:
The period of the function is:
T = 4
Answer:
The period of functions 1 and 2 respectively are:
T = 3
T = 4
The equivalent ratio of the heights of three Russian dolls are 1: 1.57: 1.86.
<h3>What is a ratio?</h3>
It is important to note that a ratio demonstrates how many times one number can fit into another number as they contrast two numbers by ordinarily dividing them.
In this case, the heights of the dolls are given in the ratio 7: 11: 13
Based on the information, the ratio will be illustrated thus:
7/7 = 1
11/7 = 1.57
13/7 = 1.86
This illustrates the ratio of the dolls.
Learn more about ratio on:
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Answer:
Option D is correct.
VS = 20 units.
Step-by-step explanation:
The complete question is contained in the attached image to this answer.
From the image attached and the additional information about the triangles, it is evident that that triangle VSW is similar to triangle QSR.
Hence, we can write the ratio as
(VS/QS) = (VW/QR)
VS = 2a
QS = 2 × VS = 2 × 2a = 4a
VW = 2a - 2
QR = 3a + 6
(2a)/(4a) = (2a - 2)/(3a + 6)
Cross multiplying,
2a (3a + 6) = 4a (2a - 2)
3a + 6 = 2 (2a - 2)
3a + 6 = 4a - 4
4a - 3a = 6 + 4
a = 10
VS = 2a = 20 units.
Hope this Helps!!!
For the second one it should be 12 or -12
