Answer:
Fast car = 45.6
Slower car = 30.4
Step-by-step explanation:
Let the speed of the first car = x
Let the speed of the second car = y
Travelling towards each other.
x *1 + y*1 = 76 miles
x*5 - y*5 = 76 miles. This is kind of tricky. You have to understand that the first car that is 76 miles from the second car and makes up that 76 in 5 hours. The distance they both travel is subtracted out.
Divide by 5
x - y = 76/5
x - y = 15.2 The speeds differ by 15.2
x + y = 76
x - y = 15.2
2x = 91.2
x = 45.6
y = 76 - 45.6 = 30.4
When the two vehicles speeds are multiplied by 5, the difference is 76 km
Answer:
- The Expression will be defined if the denominator is not equal to 0 since any number divided by 0 is undefined.
- Therfore our main priority here is to check the denominator only because it's the only part that can make the expression undefined
- the expression will be defined for all real numbers (a) BUT 3+a must not equal to 0 therfore (a) can be all real numbers but must never be equal to -3
Step-by-step explanation:
- HOPE THIS HELPS!
Answer: -11 meters
Step-by-step explanation:
so for the waters surface, we are going to call that 0. if bob is at 15 meters below 0, then -15+4=-11, so he would be at-11 meters in relation to the waters surface.
Option A) 27° is NOT a measure of an angle in the given figure.
Step-by-step explanation:
From the given figure, it can be determined that line BE is a straight line.
We know that, the angle measure of a straight line is 180°
Therefore, (2x + 12)° + 2x° + 60° = 180°
4x + 72 = 180
4x = 180 -72
4x = 108
x = 108/4
x = 27°
The angle x is not mentioned in the figure shown. So, the option A) 27° is not the measure of the angle in the figure.
Now, check for other options whether they are the angles in the figure shown.
∠CFD = 2x° = 2*27 = 54° (option C is an angle in the figure)
∠CFB = (2x+12)° = 54+12 = 66° (option D is an angle in the figure)
∠BFA = (x+2)° = 27+2 = 29° (option B is an angle in the figure)
Answer:
A,C,D
Step-by-step explanation:
The only one you might use it the triangle
