3 susan recorded the time she ate dinner and the number of calories she consumed during dinner for six…

3 susan recorded the time she ate dinner and the number of calories she consumed during dinner for six consecutive days. the results are shown in the table.\n| time | calories |\n| ---- | ---- |\n| 4:00 p.m. | 600 |\n| 5:30 p.m. | 750 |\n| 6:30 p.m. | 700 |\n| 5:30 p.m. | 900 |\n| 7:30 p.m. | 400 |\n| 8:30 p.m. | 800 |\nwhich best describes the association between the time susan ate dinner and the number of calories she consumed?\na positive\nb negative\nc irrational\nd almost none\n4 which choice is an irrational number?\na $\frac{4pi}{pi}$\nb $sqrt{6^{2}}$\nc $sqrt{18}$\nd 21.989
Answer
Answer:
- D. almost none
- C. $\sqrt{18}$
Explanation:
3.
Step1: Analizar los datos
Observamos que no hay un patrón claro entre la hora de cenar y las calorías consumidas.
Step2: Determinar la asociación
No hay una tendencia positiva o negativa clara, entonces la asociación es casi nula.
4.
Step1: Simplificar opción A
$\frac{4\pi}{\pi}=4$, que es un número racional.
Step2: Simplificar opción B
$\sqrt{6^{2}} = 6$, que es un número racional.
Step3: Analizar opción C
$\sqrt{18}=3\sqrt{2}$, y $\sqrt{2}$ es un número irracional, entonces $\sqrt{18}$ es irracional.
Step4: Analizar opción D
21.989 es un número decimal finito, por lo que es racional.