Answer:
122 1/4
Step-by-step explanation:
Hope this helps! :)
(12x12) 12x 
x12) / (3/2 x3/2)
PEMDAS = parathesis exponents multiplictation division add subtract.
12x12=24
3/2x3/2=9/4
12x2/3=8x12=96
so 24+96=120
9/4 can be like 4x2=8 so i remaing
120+2=122 1/4?
Assume the old of Jack is X and the old of Lacy is Y
so ...
do the mathematical model ...
.
X=2Y
(X+7)+(Y+7)= 35
-
THEN
Solve the equation
y= 7
x = 14
Answer:
3,984,896 rounded to the nearest hundred is 3,984,900
Answer:
b.) 4.2
Step-by-step explanation:
................
Okay, so a general rule for finding perpendicular lines in the form of y = mx + b is y = (-1/m) + b.
First, let's ignore b (-7) because we're going to find that later.
A perpendicular line to y = 4x + b is y = -1/4x + b.
Alright, so now let's plug in the values. They are in the form of (x,y), so let's plug them in accordingly.
3 = -1/4(4) + b
3 = -1 + b
b = 4
y = -1/4x + 4
So a line perpendicular to y = 4x - 7 is y = -1/4x + 4.
