Ineed in finding the the value of x to the nearest tenth?

Step-by-step explanation:

13

Taking the side we can't quite see, I would guess it is an 8.

A 45 45 90 triangle is isosceles.

The two legs are equal.

x = 8

14

Little harder

The tangent of the angle is Tan(x) = opposite over adjacent

opposite = 10

adjacent = 15

Tan(x) = 10/15

Tan(x) = 2/3

x = tan-1(2/3)

x = tan-1(0.6666666667)

x = 33.7 degrees.

Do you know how to put this in your calculator.

2nd

tan

0.666667

=

gives

33.7 rounded

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.