Answer:
Step-by-step explanation:
A signed number means that the number uses a plus or minus sign in front of it.
A
Her account will get 200 dollars larger so you will use + 200
B
The temperature is 12 degrees below zero (cold!!!) so you will write - 12
Answer:
a. L.B. = 20.5
b. U.B. = 21.5
Step-by-step explanation:
Length is measured 21 cm correct to 2 significant figures
a. Lower bound of 21
= 20.5 < 21
= 20.5
b. Upper bound of 21
= 21 < 21.5
= 21.5
-7(x^2 - 6) + 2y
x = 2 and y= -6
Plug in the numbers and solve
-7(2^2-6) + 2(-6)
-7(4 - 6) + -12
-7(-2) - 12
14 - 12
2
Hope this helps!
To get this answer you would need to do 6 x 3/4 (or 0.75) to get 4.5.
Leah will need 4.5 (or 41/4) yards of material.
Hope This Helps!
~Cupkake
Answer:
1318.8 meters
Step-by-step explanation: