For this, you have to understand the ratios of a 30,60,90 triangle. The ratio(in order) is x, x(sqrt 3), 2x (following the 30,60,90 pattern y'know). Well, we know the length of the hypotenuse, 4.2, so let's use ratios to figure the other sides out. The ratio of AC is x and the ratio of AB is 2x, so 2x/2=x=2.1. One side down. BC has a ratio of x(sqrt 3). We already know x so we can substitute it in. We get 2.1(sqrt 3). To calculate the area, use the formula 1/2(bh). Inputting the values in, we get 1/2(2.1*(2.1(sqrt 3)). This can be calculated to around 3.82. To calculate the perimeter, take the sum of the sides. By adding the sides together, we get about 9.98. Hope you can now understand how to do these kinds of questions.
Answer:
8244
Step-by-step explanation:
-2 pennies, 4 nickels, 4 dimes
-2 pennies, 4 nickels, 3 dimes
-2 pennies, 4 nickels, 2 dimes
And so on. Do you kind of get the idea?
Answer:
This equation has no real solutions, because the discriminant is less than zero.
Step-by-step explanation:
no solution
neverminding the dots or points on the line, we can see that the line is using a solid stroke, is a solid line, as opposed to a dashed one.
A solid line means, "the borderline is included in the inequality", so that means either ⩾ or ⩽, depending on how you'd write the expression.
so we can say
y ⩽ "some expression in x-terms here"
or we can say
"some expression in x-terms here" ⩾ y
basically the same thing.
the cat is red
and
red is the cat
same thing, depends on how you write it.
