<span>-34-r=-7(8r-3)
- 34 - r = - 56r + 21
- r + 56r = 21 + 34
55r = 55
r = 55/55
r = 1</span>
Answer:
A
Step-by-step explanation:
I think I am not sure soo maibe u might want to double check and just saing I am a 7th grader
The expression 400(1.12)^y is an exponential function
The true statement is that the growth rate of the fish in the lake is 12%
<h3>How to determine the true statement?</h3>
The expression is given as:
400(1.12)^y
The above expression is an exponential growth function,
Where:
- 4000 represents the initial value
- 1.12 represents the growth factor
Next, we calculate the growth rate (r) as follows:
r = 1.12 - 1
r = 0,12
Express as percentage
r = 12%
Hence, the true statement is that the growth rate of the fish in the lake is 12%
Read more about exponential functions at:
brainly.com/question/11464095
By finding the roots of the polynomial, we conclude that the correct graph is the second one.
<h3>
Which is the graph of the polynomial?</h3>
Here we have the polynomial:
To identify it, we need to find the roots, we can rewrite the equation as:
And we can rewrite the last part by using the Bhaskara's formula:
Then the roots are:
x = -2
x = 1
Then we rewrite:
So the roots are at x = 0, x = -2, and x = 1.
The graph with these roots is the second graph (top right).
If you want to learn more about polynomials:
brainly.com/question/4142886
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Answer:
135 degrees \
Step-by-step explanation:
5x= x+108
Subtract x from the right
4x= 108
divide by 4
x= 27
Substitute for x in the original equation
(x+108)
(27)+(108)
= 135 degrees