Answer:
20
Step-by-step explanation:
h(-7) just means that inside the x value, you replace the x with a -7.
h(-7) = |3x| - 1
h(-7) = | 3(-7)| - 1
h(-7) = | -21 | - 1
NOTE: -21 is inside |x|, those straight lines mean absolute value. No matter what, any negative number would turn into a positive one. And if it’s posititve, then it stays positive.
h(-7) = 21 - 1
h(-7) = 20
Answer:
a: no solutions
b: (2, 3)
Step-by-step explanation:
a:
In both equations, the slope of x is the same, but the y-intercept is not, which means they are parallel. Therefore, this system of equations has no solutions.
b:
Since both of the equations are equal to y, we can set them equal to each other:
We can solve by factoring (by finding a number that multiplies to 4 and adds up to -4):
(x-2)^2 = 0
x = 2
Now, to find y, plug-in x to any of the equations:
y = 2*2-1 = 3
Therefore, the solution to this system of equation is (2, 3)
I hope this helped.
Answer:
3,535 cm
Step-by-step explanation:
55cm=88km
Let's make that "one unit" - 55cm=1 unit. How many units are in the distance 5656km?
5656km/88km=64.2727... units.
55cmx64.2727... = 3,534.999 cm (depending on what your teacher requires, we can probably round to 3,535).
Therefore, we know that the two cities are 3,535 cm apart on the map.
Answer: You should get 0.68 back
Step-by-step explanation: I just did a test and got 100%
