11. x = 10, so DCE is 72. You get the measurement of x by adding 7x + 2 and x + 8 to equal 90. When you get x, you plug it in to the equation for DCE.
12. x = 17. KNM is 131. Get the measurement of x by adding both equations again, this time equaling it to 180 since it is a straight line and doesn't have a right angle. Plug in the x to the equation for KNM.
Answer:
2. 113.0 yd²
Step-by-step explanation:
Circumference Formula: C = 2πr
Area of a Circle Formula: A = πr²
Since we are given circumference, simply plug it in to find radius <em>r</em>:
Step 1: Find <em>r</em>
37.68 = 2πr
r = 37.68/2π
r = 5.99696
Step 2: Find area
A = π(5.99696)²
A = 112.983
17=-16t^2+121t+8
16t^2-121t+9=0
this is a quadratic.
it solves to 7.487seconds and 0.075 seconds.
0=-16t^2+121t+8
16t^2-121t-8=0
this solves to 7.628 and -0.066. obviously the time cant be negative so the only real answer is 7.628 seconds
Hello,
Answer A
2*(3.5x-7+x+0.4)=2*(4.5x-6.6)=9x-13.2
Y=-4/7 x 33/7 this should be the answer and the x is a times btw