This is
{HH, TT, TH, HT} where H = head and T = tail
Answer: expression
Step-by-step explanation: An equation is a mathematical sentence that contains an equal sign. Since this problem contains no equal sign at all, it can't be an equation so it's considered an expression.
Answer:
180 degrees
Step-by-step explanation:
The sum of the interior angles of a triangle is 180 degrees. Since angle C is 90 degrees and angle A is 15 degrees Then,
A+B+C=180
15+90+B=180
B=180-90-15
B=75 degrees
Using the sine law,
a/sinA = b/sinB = c/sinC
where a, b, and c are the sides of the triangle,
So,
a/sin15 = 37/sin90
and
b/sin75 = 37/sin90
Simplifying, and solving for a and b, the measure of each side is
a= 9.58 units
b=35.74 units
I hope this helped. I am sorry if you get this wrong.
Answer:
24 meters
Step-by-step explanation:
The area of a circle can be found using the following formula.
We know that the area is 144pi m^2.
Substitute 144pi m^2 in for a.
We want to find the diameter. First, we must find the radius. We have to get the variable, r, by itself.
Divide both sides of the equation by pi.
The variable, r , is being squared. The inverse of a square is the square root. Take the square root of both sides of the equation.
The radius of the circle is 12 meters, but the question asks for diameter. The diameter is twice the radius.
The radius is 12 m.
Multiply
The diameter of the circle is 24 meters.
2x - 1 = 3x + 1
3x - 2x = -1 - 1
x = -2
y = 2(-2) - 1
y = -4 - 1
y = -5
answer
x = -2 and y = -5