Chapter 3 Multiple choice questions

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. List the order in which we should apply the operators shown to calculate X = at + b (a - t)³

Brackets (a - t) → Subtraction a - t → Multiply (b × (a - t) and a × t → (b × (a - t)) all to the Power (Of) 3 → Add at + (b (a - t))³ correct incorrect

Add t + b → Brackets (a - t) → Subtraction a - t → Power (Of) 3 → Multiply (t + b) × (a - t)³ → Multiply everything by a correct incorrect

Multiply a × t → Add at + b → Brackets (a - t) → Subtraction a - t → Power (Of) 3 → Multiply (at + b) × (a - t)³ correct incorrect

Brackets (a - t) → Subtraction a - t → Power (Of) 3 → Multiply b × (a - t)³ and a × t → Add at + b (a - t)³ correct incorrect

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. List the order in which we should apply the operators shown to calculate
$X=-\frac{\Delta H}{R}\left(\frac{1}{T_2}-\frac{1}{T_1}\right)$

Brackets → Division of (1 ÷ T₂) and (1 ÷ T₁) → Subtraction: (1 ÷ T₂) - (1 ÷ T₁) → Multiply by '-ΔH' → Divide by R correct incorrect

Brackets → Subtraction: (T₂ - T₁) → Division (1 ÷ (T₂ - T₁) → Multiply by '-ΔH' → Divide by R correct incorrect

Subtraction: (T₂ - T₁) → Multiply R by (T₂ - T₁) → Multiply -ΔH by 1 → Divide '-ΔH' by (R (T₂ - T₁)) correct incorrect

Brackets → Division (1 ÷ T₂) and (1 ÷ T₁) → Subtraction (1 ÷ T₂) - (1 ÷ T₁) → Divide ΔH by R → Subtract (ΔH ÷ R) from ((1 ÷ T₂) - (1 ÷ T₁))
correct incorrect

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. Calculate (without using a calculator) the value of y in the following equation: y = 10 - 3 × 2.

14 correct incorrect

4 correct incorrect

17 correct incorrect

15 correct incorrect

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. Calculate (without using a calculator) the value of y in the following equation: y = 15 + 5 × 6 - 3.

60 correct incorrect

117 correct incorrect

30 correct incorrect

42 correct incorrect

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. Calculate (without using a calculator) the value of y in the following equation: y = 21 + 4 × 3 × 2 - (5 + 13).

132 correct incorrect

-1200 correct incorrect

48 correct incorrect

27 correct incorrect

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. Calculate (without using a calculator) the value of y in the following equation:
$y=\sqrt{17+4\times 8}+\frac{9}{3}$ .

$\sqrt{168}+3$ correct incorrect

10 correct incorrect

$\frac{16}{3}$ correct incorrect

$\sqrt{17}+35$ correct incorrect

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. Calculate (without using a calculator) the value of y in the following equation:
$y=\frac{7+5}{3\times 2}-13\times 2$.

-14 correct incorrect

-2 correct incorrect

-24 correct incorrect

-12 correct incorrect

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. Calculate (without using a calculator) the value of y in the following equation:$y=\sqrt{\left(8-5\right)´3}+4´7$.

31 correct incorrect

49 correct incorrect

$\sqrt{37}$ correct incorrect

49$\sqrt{3}$ correct incorrect

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. Calculate (without using a calculator) the value of y in the following equation: y = 2³ + 3 × 6².

396 correct incorrect

156 correct incorrect

114 correct incorrect

116 correct incorrect

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. Calculate (without using a calculator) the value of y in the following equation:
$y={\left(7\times 2-\sqrt{3\times 2+4\times 8-2}\right)}^2$+ 5.

789 correct incorrect

13 correct incorrect

69 correct incorrect

169 correct incorrect