$A_n=-5\cdot 2^{x-1}\\\\A_1=-5\cdot 2^{1-1}\\\\.\quad=-5\cdot 2^0\\\\.\quad=-5\cdot 1\\\\.\quad=-5\\\\\\\\A_4=-5\cdot 2^{4-1}\\\\.\quad=-5\cdot 2^3\\\\.\quad=-5\cdot 8\\\\.\quad=-40\\\\\\\\A_8=-5\cdot 2^{8-1}\\\\.\quad=-5\cdot 2^7\\\\.\quad=-5\cdot 128\\\\.\quad=-640$

5 0

3 years ago

How many terms does the expression r ÷ 9 + 5.5 have?

konstantin123 [22]

The expression has 3 terms

7 0

3 years ago

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Help on 3&4 I don't get what in the Mumbo jumbo their talking about

erica [24]

3) It's basically asking how many 7 ounce servings can be made out of a 64 ounce container. Divide 64 by 7 and you will get a decimal but their asking for full servings so round down to the closest whole number

3 0

4 years ago

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Determine the value of the angle. Angle BDC=

Nadusha1986 [10]

90°-53°=37°

The whole angle is right angled

7 0

2 years ago

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