Answer:
4. No because 2×4=8 but 5×4 doesn't equal 18
5.
that is square-kite
square=AC^2=(AE+EC)^2=(9+15)^2=24^2=576
kite=1/2 times diagonals=1/2 times AC times BD=1/2 times 24 times (BE+ED)=12 times (7+7)=12 times 14=168
so the shaded area=576-168=408 square inches
6.
trapezoid=(base1+base2) times 1/2 times height
big one is base1=14, base2=25
height =10+12=22
area=(1/2)(14+24)(22)=(11)(38)=418
small one is base1=8
base2=25
height is 10
area=(1/2)(25+10)(10)=(5)(35)=175
so shaded area is 418-175=243 square cm
Answer:
Part A) The inequality that represent this situation is equal to

Part B) Computer A, Computer B,
Step-by-step explanation:
Part A)
Let
p------> the price of a new laptop computer
we know that
The inequality that represent this situation is equal to

Part B)
we know that
If a price is a solution of the inequality, then the price must satisfy the inequality
<u>Verify each case</u>
case A) For 
Substitute the value of p in the inequality and then compare
------> is true
therefore
Rebecca can buy computer A
case B) For 
Substitute the value of p in the inequality and then compare
------> is true
therefore
Rebecca can buy computer B
case C) For 
Substitute the value of p in the inequality and then compare
------> is not true
therefore
Rebecca cannot buy computer C
case D) For 
Substitute the value of p in the inequality and then compare
------> is not true
therefore
Rebecca cannot buy computer D
(10x)^ (-3)
= 1/ [(10x)^3]
= 1/ [10^3* x^3]
= 1/ (1000x^3)
The final answer is 1/ (1000x^3), and I don't think there is a correct option to choose from. ( option c would be correct if it were written with round brackets)
Hope this helps~