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Mathematics

2 answers:

Sati [7]3 years ago

6 0

Question 21 is d.
just guess and check.

Hope I helped:)

aleksklad [387]3 years ago

3 0

21)

Answer : 2x + 3 (Option D)

When x = 1, 2(1) + 3 = 5
When x = 2, 2(2) + 3 = 7
When x = 3, 2(3) + 3 = 9
When x = 4, 2(4) + 3 = 11

Question 22)

The square of y decreased by the quotient of 28 and 7.

Quotient of 28 and 7 = 28/7

Decreased by square of y = -y²

Therefore the expression is 28/7 - y² (Option A)

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