Answer:
Its 0.45, 67%, 4/5, 6/7
Step-by-step explanation:
4/5 - 0.80
0.45 - 0.45
6/7 - 0.85
67% - 0.67
Also I took the test
Step-by-step explanation:
CDE = 2x, DEF = x
hexagon = 720°
720 = 115 + 145 + 160 + 90 + 2x + x
720 = 3x + 510
720 - 510 = 3x
210 = 3x
x = 210 ÷ 3
x = 70°
CDE = 2x
= 2(70)
= 140°
Answer: C
<u>Step-by-step explanation:</u>
∑ 8(
)⁽ⁿ⁻¹⁾ from n = 1 to n = 5
n = 1 → 8(
)⁽¹⁻¹⁾
= 8 = ![\frac{648}{81}](https://tex.z-dn.net/?f=%5Cfrac%7B648%7D%7B81%7D)
n = 2 → 8(
)⁽²⁻¹⁾
=
=
n = 3 → 8(
)⁽³⁻¹⁾
=
= ![\frac{3528}{81}](https://tex.z-dn.net/?f=%5Cfrac%7B3528%7D%7B81%7D)
n = 4 → 8(
)⁽⁴⁻¹⁾
=
= ![\frac{8232}{81}](https://tex.z-dn.net/?f=%5Cfrac%7B8232%7D%7B81%7D)
n = 5 → 8(
)⁽⁵⁻¹⁾
=
= ![\frac{19208}{81}](https://tex.z-dn.net/?f=%5Cfrac%7B19208%7D%7B81%7D)
Sum = ![\frac{33128}{81}](https://tex.z-dn.net/?f=%5Cfrac%7B33128%7D%7B81%7D)
= 408.99
Answer:
Step-by-step explanation:
wrong it would be 4 just did it and got it correct
Answer:
equation: 5t + 3t = 38
answer: 5 hours
step-by-step explanation:
5t + 3t = 38
5(5) + 3(5)
25 + 15
40