the answer is 45 is the legnth
1. D
2.B
3.A
4. D i think i can’t really see that question
5.C
, so
Recall that
for all , and knowing that we have
Answer:
The answer to your question is below
Step-by-step explanation:
a)
32.6 grams of H₂O to moles
molar mass of water = 2 + 16 = 18 g
18 g ------------------- 1 mol
32.6 g ---------------- x
x = (32.6 x 1)/18
x = 1.81 moles of H₂O
b) 22.7 grams to molecules
18 g of H₂O ----------------- 6.023 x 10²³ molecules
22.7 g of H₂O ------------- x
x = (22.7 x 6.023 x 10²³)/18
x = 7.59 x 10²³ molecules
Answer:
2x⁶ + 16x⁵ + 30x⁴
Step-by-step explanation:
area of rectangle with height 2x⁴ and width x²+8x+15
area = height x width
2x⁴( x²+8x+15)
2x⁴( x²) +2x⁴(8x)+ 2x⁴(15)
2x⁴⁺² + 16x⁴⁺¹ + 30x⁴
2x⁶ + 16x⁵ + 30x⁴
the area of the rectangle in polynomial which is in standardised form is 2x⁶ + 16x⁵ + 30x⁴