‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼ ️‼️‼️‼️‼️ ! explain and only answer if you know you have the correct ! evaluate the following expression using the values given: x^3 - 2y^2 - 3x^3 + z^4 x=3 y=5 z = -3

Hello.

1. -23

x3−2y2−3x3+z4 Arranging similar monomials

=x3−3x3−2y2+z4

=−2x3−2y2+z4

=−2(3)3−2(5)2+(−3)4

=−2×27−2×25+81

=−54−50+81

=−104+81

=−23

Have a nice day

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

757764

step-by-step explanation:

de77737dd