63 degrees, if that angle is 72 that means the other must be 54 (add to 180), and if that angle on the other triangle is 54, the others must be 63 (add to 180).
Answer:
f(3)=56, f(-4)=277
Step-by-step explanation:
f(x)=x^4-8x-11
f(3)=3^4-8(3)-11=3*3*3*3-24-11=9*3*3-35=27*3-25=81-25=56
f(-4)=(-4)^4-8(-4)-11=(-4)(-4)(-4)(-4)+32-11=(16)(16)+32-11=256+32-11=288-11=277
Answer:
In this question ;
key word is <em><u>descends</u></em> which means <em><u>going down</u></em>
now the position is -300 which means it's under water and it descends 115 m that means now it's even more under water
position now is -300 -115 = <u>-415m</u>
<u> </u>
64 + 43 = 107
107 - 43 = 64
107 - 64 = 43