Answer:
option D is rational
Step-by-step explanation:
A rational number is a number that can be written in the form of fraction or integer
here in the given question
A) 1.5 + √1.5
now,
√1.5 is not rational as √1.5 = 1.2247448713915890490986420373529
hence A is not rational
b) 12 - √12
√12 is not rational as √12 = 3.4641016151377545870548926830117
hence B is not rational
c) 
here,
is not rational
D) 
now,
√25 = 5
hence,
= 
= 5
therefore,
option D is rational
JIH= QRP
they’re the same shape.
Answer:
A) 1/45
B) 1/60
Step-by-step explanation:
<u>Part A</u>
The actual car has a length to width ratio of ...
length/width = (570 cm)/(180 cm) = 57/18 = 3 1/6
The rectangle on the screen has a length to width ratio of ...
length/width = (13 cm)/(4 cm) = 3 1/4
Relative to its width, the screen rectangle is longer than necessary for a model of the car. So, the scale factor will be determined by the width of the car relative to the width of the screen model.
For a model width of 4 cm, the scale factor is ...
model/life-size = (4 cm)/(180 cm) = 1/45
__
<u>Part B</u>
For a model width of 3 cm, the scale factor is ...
model/life-size = (3 cm)/(180 cm) = 1/60
Answer:
x=23.5 + -0.5y
Step-by-step explanation:
Simplifying
2x + y = 47
Solving
2x + y = 47
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1y' to each side of the equation.
2x + y + -1y = 47 + -1y
Combine like terms: y + -1y = 0
2x + 0 = 47 + -1y
2x = 47 + -1y
Divide each side by '2'.
x = 23.5 + -0.5y
Simplifying
x = 23.5 + -0.5y
The actual number of visitor's to the amusment park last year is 11,598,546
