Answer:
A) 0.5 g/cm³
Step-by-step explanation:
To find volume, you must multiply length × width × height
So it would be 3 × 2 × 4
3 × 2 × 4 = 24
Volume = 24
Plug in both numbers into the equation for Density
12 ÷ 24 = 0.5
The density will be 0.5 g/cm³
The function f(x) = 5x² + 40x is a parabola. Then the vertex of the parabola will be at (–4, –80).
<h3>What is the parabola?</h3>
It is the locus of a point that moves so that it is always the same distance from a non-movable point and a given line. The non-movable point is called focus and the non-movable line is called the directrix.
The function f(x) = 5x² + 40x
Then add and subtract 80, then we have
f(x) = 5x² + 40x + 80 – 80
f(x) = 5(x² + 8x + 16) – 80
f(x) = 5(x + 4)² – 80
The vertex of the parabola will be at (–4, –80).
More about the parabola link is given below.
brainly.com/question/8495504
Find out how many hours you worked first.
2:30 pm-8:45 => 6:15 hours
But they say that you take a break of 1/2 hour
6:15- 0:30= 5:45 hours
Convert all the data into hours. 5 hours + 45/60 hours
Multiply data with given hourly wage.
5x$7.50=$37.5
(45/60)x7.50=$5.625
In total, you earn (37.5+5.625)=> $43.125
Hope I helped :)
Answer:
26
Step-by-step explanation:
Since the input is -4, x = -4. The equation then is y = -7(-4) -2
A negative times a negative is a positive, so -7 times -4 is 28.
Now the equation reads y = 28 - 2
Then obviously you just subtract the two and then you get 26.