Answer:
Speed of car B is 33 km/h and speed of car A is 
Step-by-step explanation:
Let speed of car B be
km/h
Speed of car A is 12 km/h more than car B.
Therefore,
Speed of car A =
km/h
Distance = Speed × Time
Distance travelled by car A in 4 hours =
km =
km
Distance travelled by car B in 4 hours =
km
Also, cars A and B are 312km apart after 4 hours.

Speed of car B is 33 km/h and speed of car A is 
If the function f(x) is translated 7 units right and 8 units up, then the equation of h(x) is h(x) =
+ 8
The given function is
f(x) = 
Here f(x) is translated 7 units right and 8 units up
The translation is the process of changing the coordinates of the shape in the graph
The given function is
f(x) = 
First the function is translated 7 units right
Then the function will become
f(x) = 
Then the function is translated 8 units up
Then the function will become
h(x) =
+ 8
Hence, if the function f(x) is translated 7 units right and 8 units up, then the equation of h(x) is h(x) =
+ 8
Learn more about translation here
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The least common multiple is the smallest term that can be divided to both terms without any remainder. For the two terms 8c^4 and 6c^2, you can determine it into two part. First, you find the LCM for 8 and 6. You find the prime number that is common between the two. That would be 2. For the variables c^4 and c^2, the 'prime variable' is c. Therefore, the least common multiple for 8c^4 and 6c^2 is 2c.
The values of x that will give the quadratic equation no real number solutions are -5 and 9
<h3>What are real roots of a quadratic equation?</h3>
Real roots of a quadratic equation are values of x, whose numbers can be represented on a number line.
Analysis:
We have -
+3x +c = 0
- 4ac is called the discriminant of a quadratic equation.
if
- 4ac < 0, then the quadratic equation has no real root.
where a = -1, b = 3 c = c
-4(-1)c < 0
9 + 4c < 0
4c < -9
c < -9/2
Which means values lower than -9/2 would give the solution no real root.
From, the options, only -5 would give no real solution, since it is lower than -9/2.
Learn more about real roots of a quadratic equation: brainly.com/question/7784687
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