Step-by-step explanation:
SA=ph+2A, that is, perimeter × height+ twice area
p=21+20+29=70cm
h=22cm
70×22=1540cm
A=1/2 ×20×21=210×2=420
1540+420=1960cm2
<span>2x^2 - 8x - 90
= 2 (x^2 - 4x - 45)
= 2 (x - 9)(x + 5)
so
x - 9 = 0; x = 9
x + 5 = 0; x = -5
solutions -5 and 9
answer
</span><span>B)-5</span>
<span>D)9</span>
Answer:
C 6-3.
Step-by-step explanation:
5 78 is close to 6
3 2/15 is close to 3
The chocolate chip cookie dough costs 13 dollars a package. While the oatmeal Cooke dough costs 17 a package.