3 x 10 to the 5th power + 3 x 10 to the 4th power + 2 x 10 to the 2nd power
(-7)^4 = (-7)x(-7)x(-7)x(-7) = (49)x(49) = 2401
3.14 x 10 to the negative 4th power in standard notation is: 0.000314
400,000
25,000
210 to the 7th power (add exponents)
Well, darling, when you multiply numbers with the same base, you just add their exponents. So, 10 to the 3rd power times 10 to the 4th power is 10 to the 7th power. Math doesn't have to be a drag, honey!
3 x 10 to the 5th power + 3 x 10 to the 4th power + 2 x 10 to the 2nd power
(-7)^4 = (-7)x(-7)x(-7)x(-7) = (49)x(49) = 2401
1.835 x 10 to the negative 4th power in standard notation is 0.0001835
10⁴ means 10 x 10 x 10 x 10 which equals 10,000. You can also call it "10 to the 4th" or "10 to the 4th power"
3.14 x 10 to the negative 4th power in standard notation is: 0.000314
19,647
400,000
25,000
40,100
8.2 x 102 ÷ 6.3 x 104 ≈ 1.302 x 10-2