Answer:
B
Step-by-step explanation:
The answer is B because when you simplify it you get -3x + 10 = 0. Since this is no longer a quadratic equation, you can't solve it using the quadratic formula.
Answer:
Step-by-step explanation:
The perimeter of a shape is the sum of its side lengths.
<em>Joshua miscalculated the third length of the triangle</em>
First, we calculate the third length (x) of the triangle.
Because the triangle is right-angled, we can make use of Pythagoras.
So we have:
Take square roots of both sides
The other shape in the figure is a square.
So, the perimeter (P) is
---- i.e. the sum of the visible lengths
So, we have:
Evaluate like terms:
Hence, Joshua's error is that:
<em>He miscalculated the third length of the triangle</em>
Read more about perimeters at:
brainly.com/question/6465134
Answer:1,440
How I know: Im not a geek or anything(not that there is nothing wrong with them) but all I did was : 30*24=720 and then 720*2=1,440 so that being said 1,440 is the answer that I came up with. Also if you think about it is really simple : they are selling 30 min. for 24 hours in a day and 7 days a week BUT the question is only having 2 days a week...
Hope this helps and hope you pass ;)