Answer:
9,12,15 i think
Step-by-step explanation:
Answer: y = 1x + -4
Equation of a straight line:
y = mx + b ------(i)
Step by Step Solution:
Step 1: Calculating Slope (m).
m = y2-y1 /x2-x1
m = 3--1 /7-3
m = 4/4
m = 1
Now putting value of m in equation (i)
y = 1x + b -----(ii)
Step 2: Calculating Y-intercept (b).
Lets choose the first point, (3,-1) for calculating y-intercept:
y = mx + b
-1 = 1(3) + b
-1 = 3 + b
-4 = b
b = -4
Now putting value of b in equation (ii)
y = 1x + -4
The rate of change of function is: 10
Further explanation:
The formula for rate of change is:

Given

Putting the values in the formula:

The rate of change of function is: 10
Keywords: Functions, Rate of change of functions
Learn more about functions at:
#LearnwithBrainly
<h3>
Answer: 128.74 square meters</h3>
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Explanation:
The area of the garden only (ignore the circular pathway) is approximately
A = pi*r^2
A = 3.14*20^2
A = 1256
The area of the garden plus the path is approximately
A = pi*r^2
A = 3.14*21^2
A = 1384.74
Notie how I added on 1 meter to increase the radius to 21
Subtract the two circle areas to get the area of the circular ring.
1384.74 - 1256 = 128.74
The units for all of the areas mentioned are "square meters".
Answer:
true but can u help me or u can go to questioncove its better then branily but can u help me pls
Step-by-step explanation: