20 POINTS AND BRAINLIEST !! PLEASE ANSWER THIS QUESTION !!
2 answers:
Answer:
c)
Step-by-step explanation:
The way I solve these is...
First, you look at where the line crosses the y-axis because that's your b in the y=mx+b equation. Which is 9
Then I find a point where the line passes thru so for example, (-6,5) Remember that x point is always before the y.
From there I determine if the line is positive or negative, this one's positive because the line goes up from left to right, if it were going up from right to left, then it'd be negative.
So knowing it's positive we count the points up and to the right until reaching the next point. So first go up 2 points and then right 3.
Knowing this, remember that it's always rise over run for the slope, so we rose 2, and ran 3. so, the slope is 2/3
This gives us our equation of
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Answer:
The number of fringes at is given as 20.
Step-by-step explanation:
Question
A Galapagos cactus finch population increases by half every decade. The number of finches is modeled by the expression
,
where d is the number of decades after the population was measured. Evaluate the expression for d = −2
Given :
The number of finches is modeled by the expression :
⇒
where is the number of decades after the population was measured.
To evaluate the expression for d=-2
Solution:
In order to evaluate the given expression to find the number of finches at , we will plugin
for
in the expression and simplify it.
Plugging in in the expression:
⇒
Using negative exponent property. [
⇒
⇒
⇒ (Answer)
Thus, the number of fringes at is given as 20.
This means the number of fringes two decades ago was 20.