Answer:
168
Step-by-step explanation:
Mark as Brainliest
An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest cir
cle that could fit in the square as, shown below.
What is the circumference of the copper circle? Use 3.14 to represent pi.
A. 3.14 inches
B. 31.4 inches
C. 15.7 inches
D. 78.5 inches
What is the circumference of the copper circle? Use 3.14 to represent pi.
A. 3.14 inches
B. 31.4 inches
C. 15.7 inches
D. 78.5 inches
1 answer:
You might be interested in
Answer:
As per the statement:
The path that the object takes as it falls to the ground can be modeled by:
h =-16t^2 + 80t + 300
where
h is the height of the objects and
t is the time (in seconds)
At t = 0 , h = 300 ft
When the objects hit the ground, h = 0
then;
-16t^2+80t+300=0
For a quadratic equation: ax^2+bx+c=0 ......[1]
the solution for the equation is given by:
On comparing the given equation with [1] we have;
a = -16 ,b = 80 and c = 300
then;
Simplify:
= -2.5 sec and
= 7.5 sec
Time can't be in negative;
therefore, the time it took the object to hit the ground is 7.5 sec
Answer:
Step-by-step explanation:
Given the inequality , we need to solve for "x".
We can subtract to both sides:
(This step is shown in the exercise)
Now, we can add 10 to both sides:
(This step is not shown in the exercise)
And finally, divide both sides by -3:
(This is shown in the exercise)
Therefore, the missing step is: