Let
rA--------> radius of the circle A
rB-------> radius of the circle B
SA------> the area of the sector for circle A
SB------> the area of the sector for circle B
we have that
rA=5/2 ft
rB=9/2 ft
rA/rB=5/9-----------> rB/rA=9/5
SA=(25/36)π ft²
we know that
if Both circle A and circle B have a central angle , the square
of the ratio of the radius of circle A to the radius of circle B is equals to
the ratio of the area of the sector for circle A to the area of the sector for
circle B
(rA/rB) ^2=SA/SB-----> SB=SA*(rB/rA) ^2----> SB=(9/5) ^2*(25/36)π--->
<span>SB----------- > (81/25)*(25/36)------ > 81/36------
> 9/4π ft²</span>
the answer is
<span>the measure of the sector for circle B is (9/4)π ft²</span>
The rhinoceros would be 1 meter 85 centimeters tall. If you need an explanation let me know!!(:
Step-by-step explanation:
Given:
7p - 6pc + 3c - 2
Find:
Number of terms
Coefficients
Constant terms
Computation:
Number of terms = 4
Coefficients = (7, -6, 3)
Constant terms = -2
Answer:
14
Step-by-step explanation:
The sum of their age is 19.
This means that when you add their ages together, it will be 19.
L+R=19
The positive difference of their age is 9.
It tells you that Lily is the older child.
Since the difference is a positive number, that means it would be Lily's age minus Rosie's age since Lily is older.
L-R=9
Now you have 2 equations that can be used to find their ages.
Start with the first equation.
L+R=19.
Solve for L.
Subtract R on both sides.
L=19-R
Now use the substitution method (replacing or "substituting" L with 19-R) for the next equation.
L-R=9
(19-R)-R=9
19-2R=9
-2R=-10
R=5
Rosie's age is 5.
Rosie's age is 5. Now use the first equation to find Lily's age.
L+5=19
L=14.
Lily's age is 14.
Answer:
$113.81
Step-by-step explanation:
Find the cost for one book:
35.94 / 6 = 5.99
Multiply 5.99 with the number of books buying:
5.99 x 19 = 113.81
