300 acres. because <span>multiply 60 by 5.</span>
We know that the angles of a triangle sum to 180°. For ΔABC, this means we have:
(4x-10)+(5x+10)+(7x+20)=180
Combining like terms,
16x+20=180
Subtracting 20 from both sides:
16x=160
Dividing both sides by 16:
x=10
This means ∠A=4*10-10=40-10=30°; ∠B=5*10+10=50+10=60°; and ∠C=7*10+20=70+20=90.
For ΔA'B'C', we have
(2x+10)+(8x-20)+(10x-10)=180
Combining like terms,
20x-20=180
Adding 20 to both sides:
20x=200
Dividing both sides by 20:
x=10
This gives us ∠A'=2*10+10=20+10=30°; ∠B'=8*10-20=80-20=60°; and ∠C'=10*10-10=100-10=90°.
Since the angle are all congruent, ΔABC~ΔA'B'C' by AAA.
Answer:
There is no solution for the given radical equation.
x = 225/16 is an extraneous solution.
Step-by-step explanation:
The given equation is
Add 3 to both sides of the equation
Squaring both sides
Divide both sides by 16
Substituting back the value of x in original equation to check the extraneous solution.
Since -18≠ 12. Hence, the value of x does not satisfy the equation.
Therefore, x = 225/16 is an extraneous solution.
Step-by-step explanation:
Answer:
4, −3, 1 over 5
Step-by-step explanation:
x is a zero of
if 
In this problem, we have that:

4, 3, 1 over 5

So 4 is a zero of the function

So 3 is not a zero of the function, and this option is incorrect
4, 3, − 1 over 5

So 3 is not a zero of the function, and this option is incorrect
4, −3, 1 over 5

So 4 is a zero of the function

So -3 is a zero of the function

So 1 over 5 is a zero of the function
This is the correct answer.
4, −3, −1 over 5

So 4 is a zero of the function

So -3 is a zero of the function

-1 over 5 is not a zero of the function