The value of x is option C) x=8.6
<u>Step-by-step explanation</u>:
Given that,
- The triangle ABC is similar to triangle DEC.
- It means that the side AB of triangle ABC is in proportion to side DE of triangle DEC.
⇒ AB/DE
⇒ 11/7.
Also, the side AD of triangle ABC is in proportion to side DC of triangle DEC.
⇒ AD/DC
⇒ (x+15)/15.
<u>To find the value of x :</u>
Equating the two proportions AB/DE and AD/DC.
11/7 = (x+15)/15
Keep x term alone on one side,
x+15 = 15(11/7)
x = (165/7) - 15
x = 23.6 - 15
x = 8.6
Answer:
512
Step-by-step explanation:
8³ is the same as saying 8×8×8
8×8×8= 512
Hope that helps!
Answer:
r is very close to 1 because there is a very concrete relationship between the variables x and y.
Step-by-step explanation:
Given that x = age,
y = time since the subject had acquired a driving licence.
We want to know why the correlation of these variables is so close to 1.
Correlation of these variables is the mutual relationship between the two variables.
Drivers licence is only obtainable when one comes of age.
For example: Many countries don't issue drivers license to an individual below the age of 18.
The correlation is very close to 1 because there is a concrete relationship between the variable.
Answer:
-12
Step-by-step explanation: