Step-by-step explanation: im not really sure what it is but if you are working from this probplem do pemdas-
perthises,expoment,mulicaion,divishoin,addishoin, subbtraion
hope this helped! sorry if i spelt these wrong....
You find values of 28 that add to -11! in this case thats -7 and -4. after that just plug in (x-7)(x-4)=0 so: x=4, x=7
Answer: B. Line AC is congruent to line BD
Step-by-step explanation:
The Hypotenuse-Leg Theorem states that two right triangles are congruent if and only if the hypotenuse and a leg of one right triangle are congruent to the hypotenuse and a leg of the other right triangle.
Since they both share Leg DC, their hypotenuse should be congruent to use this proof.
30% percent is what they marked up
Longer wavelength means lower frequency (lower pitch)