3 years ago

33 points I really need help on these both.

Mathematics

2 answers:

serg [7]3 years ago

6 0

3) y^2 - 1 = 24

add 1 to each side:

y^2 = 25

Take square root of each side: y = √25

y = 5 or -5

4) y^2 - 1 =48

Add 1 to each side:

y^2 = 49

Take square root of each side:

y = 7 or -7

marusya05 [52]3 years ago

5 0

Answer:

-5 and 5

-7 and 7

Step-by-step explanation:

y² - 1 = 24

y² = 25

y = ±5

y² - 1 = 48

y² = 49

y = ±7

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