Answer:
The circumference of Dan's circle is approximately 50.27 inches.
Step-by-step explanation:
The length of the circumference (), measured in inches, is determined by the formula:
(1)
Where is the radius, measured in inches.
If we know that , then the length of the circumference is:
The circumference of Dan's circle is approximately 50.27 inches.
Subtract b from each side to get
y
−
b
=
m
x
. Next, divide each side by
x
to get
y
−
b
x
=
m
.
9514 1404 393
Answer:
(b) 60°
Step-by-step explanation:
The sum of angles in a pentagon is 540°, so you have ...
90° +90° +150° +x +150° = 540°
x = 540° -480°
x = 60°
Answer:
x > -3
Step-by-step explanation:
When solving for x:
(x + 5) > 2
Subtract 5 from both sides:
x + 5 - 5 > 2 - 5
Simplify:
x > - 3
Answer:
5.68 and -6.68
Step-by-step explanation:
Use the quadratic formula.
x = (-b+-sqrt(b^2-4ac))/2a
Now let's find the values of a b and c.
Use the standard form of the quadratic equation.
ax^2+bx+c = 0
Using this we can find the values of a b and c.
a = 1
b = 1
c = -30-8
c = -38
Now plug in the values.
We get,
(-1+-3sqrt(17))/2
Which rounded to the nearest hundredth is about,
5.68 and -6.68