Answer:
173.82cm²
Step-by-step explanation:
A=2(1+2)a2=2·(1+2)·62≈173.82338cm²
Answer:
see explanation
Step-by-step explanation:
Given the 2 equations
y = x² + 2x + 7 → (1)
y - 7 = x → (2)
Rearrange (2) expressing y in terms of x by adding 7 to both sides
y = x + 7 → (3)
Substitute y = x + 7 into (1)
x + 7 = x² + 2x + 7 ( subtract x + 7 from both sides )
0 = x² + x ← factor out x from each term
0 = x(x + 1)
Equate each factor to zero and solve for x
x = 0
x + 1 = 0 ⇒ x = - 1
Substitute these values into (3) for corresponding values of y
x = 0 → y = 0 + 7 = 7
x = - 1 → y = - 1 + 7 = 6
The solutions are
(- 1, 6 ) and (0, 7 )
Ariel travels 400 miles in 8 hours. What is her rate of change or rate?
The formula for rate is Distance = Rate * Time
400 miles = Rate * 8 hours
400 miles / 8 hours = Rate
Rate = 50 MPH
These two lines are parallel
You can use desmos
Option D:
Solution:
Given data:
Let the unknown degree be x.
To find the degree x:
Cancel the common factor 7 in the numerator and denominator.
Using trigonometry basic formula,
we know that 
.
So, x = 60°.
The unknown degree measure is 60°.
Hence option D is the correct answer.
