Ok so the value of x is 6 those lines on the 6 and x lines means that they are congruent. Then to figure out y you would use Pythagorean theorem 6^2+6^2
36+36=72
Square root 72 is about 8.5
8.5 would be y. Let me know if this is right and if this helps
Yes ..........................................
(3x - 2y) / (z + 4)........x = 1, y = -2, z = 3
now we start subbing
((3(1) - 2(-2)) / (3 + 4).....simplify
(3 + 4) / (3 + 4) =
7/7 =
1 <== ur answer
(4.3×10²) × (4.0×10⁻³) in scientific notation?
(4.3 x 4.0) x (10² x 10⁻³) = 17.2 x (10² x 10⁻³) =
= 17.2 x 10²⁻³ = 17.2 x 10⁻¹ = 1.72 x 10¹ x 10⁻¹ = 1.72 x 10¹⁻¹ = 1.72 x 10⁰ = 1.72 x 1
Answer : 1.72 x 10⁰ = 1.72
Hope this helps!
