Answer:
-7.78 ,-7
, -7![\frac{17}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B17%7D%7B100%7D)
Step-by-step explanation:
Convert the two fractions into decimals
-7
= -7.65
-7
= -7.17
1/5x = 2/5
x = 2/5 * 5/1 (5/1 is the inverse of 1/5)
x = 2
Answer:
Step-by-step explanation:
99x - 44y = -605
-99x + 63y = 738
19y = 133
y = 7
-9x + 28 = 55
-9x = 27
x = -3
(-3, 7)
Answer:
C and D
Step-by-step explanation:
5¹²·5⁸
= 5⁽¹²⁺⁸⁾
= 5²⁰
we simply have to select the answers which are equivalent to 5²⁰
Consider choice c:
(5³ 5² )⁴
= (5⁽³⁺²⁾)⁴
= (5⁵)⁴
= 5⁽⁵⁾⁽⁴⁾ ....(note.. this is identical to choice D, hence D is an answer)
=5²⁰ (C is also an answer)