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Leno4ka [110]
3 years ago
7

Determine the value of y, if x is 7. y = x2 - 1

Mathematics
2 answers:
Savatey [412]3 years ago
7 0
13 because if you plug in 7 y=7(2)-1 then do 7x2 and then it would be 14-1 so 13
ddd [48]3 years ago
4 0

Answer:

13

Step-by-step explanation:

If x is 7, then 7 * 2 = 13, and 14 - 1 = 13.

Hope that this helps!

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(2x - y + 3) (2x - y - 3)using identities ​
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3/10 of the students in art class are painting with watercolors. 1/2 of the students are painting with oil paints. What fraction
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A sequence is defined recursively using the formula f(n + 1) = -0.5f(n). If the first term of the sequence is 120, what is f(5)?
PolarNik [594]

Answer: 7.5

Step-by-step explanation:

The given formula tells us that the next term f(n+1) of the sequence is -0.5 times the previous term f(n)

First term of the sequence is f(1) = 120

Second term of the sequence is f(2) = f(1+1) = -0.5 f(1) = -0.5 (120) = -60

Third term of the sequence is f(3) = f(2+1) = -0.5 f(2) = -0.5 (-60) = 30

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3 years ago
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