Questions asked
Find the axis of symmetry of the given function. $f(x) = x^2 - 3x + 4$ A. $x = \frac{3}{4}$ B. $x = -\frac{3}{2}$ C. $x = 3$ D. $x = \frac{3}{2}$
Suppose the number of hours students study per week follows a normal distribution with a mean of 50 hours and a standard deviation of 2.1 hours. (a) Approximately what percentage of students study between 45.8 and 54.2 hours per week? 51% 68% 99.7% 95%
What is the main vein that returns blood back to the heart from the lower body?
write a program that asks the user for 2 numbers, and then do the following calculation and output the results. 1. the sum of those two numbers 2. num1$-$num2 + 2 3. num1 \times num2 $-$ 5 4. integer results of num1/num2 5. num1 \% num2 (remainder of num1/num2) sample output: Please enter the first integer: 10 Please enter the second integer: 7 The sum of those two number is 17 num1$-$num2+2 = 5 num1 \times num2 $-$ 5 = 65 num1/num2 = 1 num1\%num2 = 3 $-$ program is finished running (dropped off bottom)
Males and females diverge in accumulation of fat at _____. This difference is largest for fat in the _____ Select one: a. birth; trunk b. puberty; trunk
Give a brief description of an exercise routine that would be exercising for fitness and exercising for health
A gas undergoes two processes. In the first, the volume remains constant at 0.200 m$^3$ and the pressure increases from 2.50$\times10^5$ Pa to 6.50$\times10^5$ Pa. The second process is a compression to a volume of 0.160 m$^3$ at a constant pressure of 6.50$\times10^5$ Pa. Part A Find the total work done by the gas during both processes. Express your answer in joules. W = J
4. Assume the following theoretical situation. You look with a very high powered microscope and see 4 CO molecules and 2 $O_2$ molecules. Later, you looked again. These molecules have reacted and this time, you see 4 $CO_2$ molecules. Write a balanced equation for this reaction, using the simplest whole number ratio.
Compute the integral of the scalar function or vector field over r(t) = (cost, sint, 9t) for 0 ? t ? ?.\ F(x, y, z) = (3x, 3y, z^2).\ (Use symbolic notation and fractions where needed.)\ $\int_c \mathbf{F} \cdot d\mathbf{r} = $
Exercice 1: Nous disposons d'une source de courant alternatif dont le le signal de sortie Vs est d'une tension efficace égale à 1mV. La source possède une résistance interne Rs = 1 ??. Un montage amplificateur à base d'un transistor bipolaire à jonction est utilisé pour amplifier le signal généré par cette source tel que présenté par la figure ci-dessous. Rs = 1 ?? Vi ? Vcc = 20 V RB = 470 ?? Rc = 2.2?? V 0 Veff = 1 mV 560? V Zi S B=120 ro= 40? ? Zo RL 2 ?? = 1. Trouver le point de fonctionnement de ce montage (valeurs de IBQ, ICQ et VCEQ); 2. Calculer la résistance dynamique re; 3. Trouver les impédances d'entrée Zi et de sortie Zo pour ce montage; 4. Calculer les gains en tension sans charge AVNL et avec charge Av; 5. Trouver la valeur du gain en courant A?; 6. Calculer les valeurs efficaces des tensions Vi et Vo et des courants Ii et Io;
