Answer:
A
Step-by-step explanation:
Can't be B and C because it's less than 1. Can't be D because there's a y intercept. Also, I could be wrong
Answer:
Given that, \hat{y} = 3.251x + 31.237 .
Thus, when, reading hours, x = 35,
\hat{y} = (3.251 * 35) + 31.237 = 145.022. (Ans).
Answer:
1/243.
Step-by-step explanation:
Assuming that the chance of absence of each teacher is 1/3 the answer is
(1/3)^5
= 1/243.
Answer:
$180
Step-by-step explanation:
To calculate how much money she has saved, we can use the following information:
-> She wants to save a total of $300.
-> She reached 60% of her goal this month, so she saved already 60% of the total.
Then, we just need to know how much is 60% of 300, as that's the value she already saved:
60% of 300 = 300 * 60/100 = 180
She saved $180.
Unknown side length of two similar triangles can be found out by scale factor and any of the side lengths.
Step-by-step explanation:
The similarity is one of the criteria of triangles. Two triangles are similar when their respective sides are in similar ratio or proportion. In layman’s term, it can be understood as a condition in which two triangles have similar shapes but not similar sizes.
If ΔABC is similar toΔ XYZ, then their respective sides would be in proportion to each other.
This means AB/XY=AC/XZ=BC/YZ
This common ratio is often termed as “scale factor”
Hence any sides length can be found out if either of the terms (i.e. scale factor, side ) is given.