Answer:
Step-by-step explanation:
7) R(3 , -9) ; S ( -4,5) ,T (-8,13)
RS = √(x₂ - x₁)² + (y₂ - y₁)²
= √(-4 -3)² + ( 5 - [-9] )² = √(-4 -3)² + ( 5 + 9 )²
= √(-7)² + ( 14)² =√ 49 + 196= √ 245
ST = √( -8 - [-4] )²+ (13 - 5)² + = √(-8 + 4)² + ( 13 - 5 )²
= √(-4)² + ( 8)² =√ 16 + 64= √ 80
RS ≠ ST
8) S is not the midpoint of RT.
9) AB = 14
AB + BC = AC
14 + 3X - 4 = 4X + 4
4X - 3X = 14 - 4 - 4
X = 6
AC = 4x + 4 = 4*6 + 4 = 24 + 4 = 28
BC = 3x - 4 = 3*6 - 4 = 18 -4 = 14
10)AB = BC .So B is the midpoint of AC
Answer:
<u>Please read below.</u>
Step-by-step explanation:
1. Let's calculate the unit price for each brand of diapers.
A. Stay-Dry: 108 diapers for US$ 25.18
Unit price = 25.18/108
<u>Unit price = US$ 0.23</u>
B. Uber-Soft: 180 diapers for US$ 39.14
Unit price = 39.14/180
<u>Unit price = US$ 0.22</u>
C. Cuddlies: 160 diapers for US$ 38.77
Unit price = 38.77/160
<u>Unit price = US$ 0.24</u>
<u>D. James should advise his mom to purchase Uber-Soft diapers, because the unit price is the lowest.</u>
Answer:
a = 2
b = 5
Step-by-step explanation:
Answer: The first answer
A coin bank can hold 710 coins. There are 50 coins in the bank. A student puts in 100 coins per week. How many weeks until the bank is full?
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
- 9.2(8x - 4) + 0.7(2 + 6.3x) ← distribute parenthesis
= - 73.6x + 36.8 + 1.4 + 4.41x ← collect like terms
= -73.6x + 4.41x + 36.8 + 1.4
= - 69.19 + 38.2