Yes because you multiply first so in this case you multiply 7 and 3 first. Since the second expression is in parenthesis you do that first just like you do 7 times 3. Then you just add 2 to that. The value of both expressions is 23
13xy^2-10xy-23=0
you first add the like terms and rewrite and thats how you get the answer
Formula of the Volume of a hemisphere:
V =


r³
144

=


r³
Multiply by 3 to cancel fraction in the right side
144

× 3 = 2

r³
432

= 2

r³
Divide by 2

on either sides to isolate r³

=

r³
2

and

cancel out
216 = r³
Take cube root to find the radius
![\sqrt[3]{216}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B216%7D%20)
=
![\sqrt[3]{r^3}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7Br%5E3%7D%20)
6 = r
Radius is 6 unitsThe formula of the surface area of a hemisphere is:
S.A = 2

r² +

r²
=

(6)² +

(6)²
=2

× 36 + 36

= 72

+ 36

= 108

units² (in terms of

)
≈ 339.12 units²
Surface area = 108
units
Answer: p=0
Step-by-step explanation: 10p+9-11-p=-2(2p+4)-3(2p-2) 10p-p+9-11=-2(2p+4)-3(2p-2) 9p-2=-2(2p+4)-3(2p-2) 9p-2=-4p-8-6p+6 9p-2=-4p-6p-8+6 9p-2+10p=-10p-2+10p 19p-2+2=-2+2 19p/19=0/19 p=0