Answer:
-27/7
Step-by-step explanation:
Replace x with 19,
f(19)=3/(19+2) - root(19-3)
=3/21 - root(16)
=1/7 - 4
=1/7 - 28/7
= -27/7
The answer is c
It is easier quicker to apply
The cost of the gasoline in US dollars is $53.24.
<h3 /><h3>Definition of exchange rate</h3>
Exchange rate is the rate at which one currency is exchanged for another currency. In this question, $1 would be exchanged for 1.26 Canadian dollars.
<h3>Conversion of 15 gallons to liters</h3>
In order to convert 15 gallons to liters, multiply 15 by 3.79
15 x 3.79 = 56.85 liters
<h3>Total cost of of 56.85 liters in Canadian dollars </h3>
56.85 liters x C$1.18 = C$67.083
<h3>Total cost in US dollars</h3>
C$67.083 / 1.26 = $53.24
To learn more about exchange rate, please check: brainly.com/question/25780725
Answer:
Measures of all angles are 57°, 57°, 123°, 123°
Step-by-step explanation:
Given:
Sum of two angles = 114°
Find:
Measures of all angles
Computation:
Sum of all 4 angles = 360°
Sum of remain 2 angles = 360° - 114°
Sum of remain 2 angles = 246°
So, first two angles = 114° / 2 = 57°
Second two angles = 246° / 2 = 123°
So, measures of all angles are 57°, 57°, 123°, 123°
L = 2W
A = 50
A = L x W
50 = 2W x W
50 = 2W^2
W^2 = 25
W = 5
so L = 2W = 2(5) = 10
P = 2(L+W)
P = 2(10+5)
P = 2(15)
P = 30
answer
P = 30 in
