Pregunta
Question 1 If \( a=3, b=-3, c=4 \) and \( d=7 \), evaluate: a) \( \frac{4 a-2}{c} \) b) \( \frac{b^{2}+b^{3}}{a-c} \) c) \( \frac{a^{c}}{d+2} \)
Ask by Morgan Carroll. in Australia
Mar 11,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
a) 2.5
b) 18
c) 9
Solución
Calculate the value by following steps:
- step0: Calculate:
\(\frac{\left(4\times 3-2\right)}{4}\)
- step1: Remove the parentheses:
\(\frac{4\times 3-2}{4}\)
- step2: Multiply the numbers:
\(\frac{12-2}{4}\)
- step3: Subtract the numbers:
\(\frac{10}{4}\)
- step4: Reduce the fraction:
\(\frac{5}{2}\)
Calculate or simplify the expression \( ((-3)^2+(-3)^3)/(3-4) \).
Calculate the value by following steps:
- step0: Calculate:
\(\frac{\left(\left(-3\right)^{2}+\left(-3\right)^{3}\right)}{\left(3-4\right)}\)
- step1: Remove the parentheses:
\(\frac{\left(-3\right)^{2}+\left(-3\right)^{3}}{3-4}\)
- step2: Subtract the numbers:
\(\frac{-18}{3-4}\)
- step3: Subtract the numbers:
\(\frac{-18}{-1}\)
- step4: Divide the terms:
\(18\)
Calculate or simplify the expression \( (3^4)/(7+2) \).
Calculate the value by following steps:
- step0: Calculate:
\(\frac{3^{4}}{\left(7+2\right)}\)
- step1: Remove the parentheses:
\(\frac{3^{4}}{7+2}\)
- step2: Add the numbers:
\(\frac{3^{4}}{9}\)
- step3: Rewrite the expression:
\(\frac{3^{4}}{3^{2}}\)
- step4: Divide the numbers:
\(3^{4-2}\)
- step5: Subtract the terms:
\(3^{2}\)
- step6: Evaluate the power:
\(9\)
Let's evaluate each expression step by step using the given values \( a=3, b=-3, c=4, d=7 \).
### a) Evaluate \( \frac{4a - 2}{c} \)
1. Substitute the values:
\[
\frac{4 \cdot 3 - 2}{4}
\]
2. Calculate the numerator:
\[
4 \cdot 3 = 12 \quad \Rightarrow \quad 12 - 2 = 10
\]
3. Now, divide by \( c \):
\[
\frac{10}{4} = \frac{5}{2} = 2.5
\]
### b) Evaluate \( \frac{b^{2} + b^{3}}{a - c} \)
1. Substitute the values:
\[
\frac{(-3)^{2} + (-3)^{3}}{3 - 4}
\]
2. Calculate \( b^2 \) and \( b^3 \):
\[
(-3)^{2} = 9 \quad \text{and} \quad (-3)^{3} = -27
\]
3. Now, calculate the numerator:
\[
9 + (-27) = 9 - 27 = -18
\]
4. Calculate the denominator:
\[
3 - 4 = -1
\]
5. Now, divide:
\[
\frac{-18}{-1} = 18
\]
### c) Evaluate \( \frac{a^{c}}{d + 2} \)
1. Substitute the values:
\[
\frac{3^{4}}{7 + 2}
\]
2. Calculate \( 3^{4} \):
\[
3^{4} = 81
\]
3. Calculate the denominator:
\[
7 + 2 = 9
\]
4. Now, divide:
\[
\frac{81}{9} = 9
\]
### Final Results
- a) \( \frac{4a - 2}{c} = 2.5 \)
- b) \( \frac{b^{2} + b^{3}}{a - c} = 18 \)
- c) \( \frac{a^{c}}{d + 2} = 9 \)
Respondido por UpStudy AI y revisado por un tutor profesional
Como
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Extra Insights
Let's evaluate each expression step by step with the given values \( a=3, b=-3, c=4, d=7 \). a) \[ \frac{4a - 2}{c} = \frac{4(3) - 2}{4} = \frac{12 - 2}{4} = \frac{10}{4} = \frac{5}{2} = 2.5 \] b) \[ \frac{b^2 + b^3}{a - c} = \frac{(-3)^2 + (-3)^3}{3 - 4} = \frac{9 - 27}{-1} = \frac{-18}{-1} = 18 \] c) \[ \frac{a^c}{d + 2} = \frac{3^4}{7 + 2} = \frac{81}{9} = 9 \] So the evaluations are: a) \( 2.5 \) b) \( 18 \) c) \( 9 \)
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