Answer:
C and D
Step-by-step explanation:
Use Pythagorean theorem to test
a^2 + b^2 = c^2 ? a and b are the shorter two sides c = longest side
Doing this for each data set shows C and D ARE rt triangles
Answer:
x= 7
y=9
z=90
Step-by-step explanation:
8x = (9x-7)
8x = 9x-7
8x - 9x= -7
-x= -7
<em>(multiply -1 to each side to make it positive)</em>
x= 7
(5y-11)+(9x-7)=90
5y-11+9(7)-7=90
5y-11+63-7=90
5y+63-18=90
5y+45=90
5y=90-45
5y=45
y=45÷5
y=9
(5y-11)+8x+z=180
5y-11+8x+z=180
5(9)-11+8(7)+z=180
45-11+56+z=180
34+56+z=180
90+z=180
z=180-90
z=90
Answer:
The radius of the cone is 
Step-by-step explanation:
we know that
The volume of a cone is equal to
In this problem we have
substitute in the formula and solve for r
Simplify
square root both sides
Answer:
what do you need answered?
Step-by-step explanation:
Answer:
<u>₹4000</u>
Step-by-step explanation:
₹800/10 books
₹80/1 book
<u>(₹80/1 book)*(50) = ₹4000</u>
