Answer:
x = 12
(2x + 1)° = 25°
(5x + 5)° = 65°
Step-by-step explanation:
By the property of a triangle,
Sum of all angles of a triangle is 180°
In the given right triangle,
(2x + 1)° + 90° + (5x + 5)°= 180°
7x + 96 = 180
7x = 180 - 96
x = 
x = 12
Angle (2x + 1)° = 2(12) + 1 = 25°
Angle (5x + 5)° = 5(12) + 5 = 65°
Therefore, all three angles of the right triangle are 25°, 90° and 65°.
Well x is an obtuse angle
but the angle e,f,g is an acute angle
Answer:

Step-by-step explanation:
AC is the geometric mean. Solve it using this proportion:

Now fill in the values we know:

Cross multiply to get

That means that
AC =
, which, in decimal form is
AC = 11.40175425
Y=-1/2x-3
You can rewrite the equation “y=mx+b” and fill in what you know. So your equation would look like y=-1/2x+b when filling in what you know. Now you can take the (x,y) coordinates that you were given and plug them into the equation and solve for b. So now it would be -5=-1/2(4)+b
Answer:
I believe the answer is (9, -13.5)
Step-by-step explanation:
you do 6×1.5 and -9×1.5 to enlarge/dialate the quadrilateral
again I believe this is right so sorry if I am wrong