Q and A for the topic: General

To load a 100 kg refrigerator onto the moving truck, a 40° ramp, calculate the friction force and the force required to move the refrigerator inside the truck. Coefficient of friction of rubber against metal 0.8 and 0.4

1.-Using octane C8H18 as fuel in combustion with an excess of 10% of theoretical air. Calculate the heat released if air enters the combustion process at 25°C and gases exit the combustion chamber at 327°C.

Let f: R -> R ; A f (x+1) = 2 f (x) - 5 and f (0) = 6, what is the value of f (2)?

Calculate the interest rate that a company would be charged if they promised to quintuple their money in 7 years and 4 months.

0.5^2

What is the Lowest common multiple of 10500 and 38808

3. Due to the force of gravity, a 15.0 kg wooden crate slides down a steel ramp with an incline of 25.0°. Compute the acceleration of the crate down the incline. The coefficient of kinetic friction is 0.300.

A public transport bus leaves the terminal with 2/7 of its seats empty. When it reaches the first stop, 3/5 of the bus's capacity gets on and 1/4 gets off. At the next stop, 1/3 of the bus' total seating capacity gets off. Finally, at the third stop, 3/6 get on and 1/8 get off. Are there any seats left on the bus? What fraction of the passengers must travel standing?

Condense 8ln (x) - 5ln (x)

0,015 × 120

Solve the equation -x^2+3x+4<0

1. Case Study: Prevalence of Mild Anemia in School Children in a Rural Community in Peru Introduction: Mild anemia is a public health problem in Peru, especially in rural areas where access to adequate nutrition may be limited. This study seeks to investigate the prevalence of mild anemia in schoolchildren in a rural community in Peru and its possible association with access to a balanced diet. Problem: What is the prevalence of mild anemia in schoolchildren in a rural community in Peru and how is it related to access to a balanced diet? / Determine whether there is a significant association between dichotomous variables. Anemia (Present/absent). Balanced diet (Yes / No). Data were collected from 95 schoolchildren in a rural community in the country, recording their anemia status (present or absent) and their access to a balanced diet (yes or no), as assessed by parents or guardians. The data are presented in the following table: Table 1: Type of diet and anemia in children in a rural community, Peru 2022. Balanced diet Anemia Present Absent No 32 12 Yes 9 42 With a significance level of 0.05, can we conclude that anemia and balanced diet are independent? Apply the Chi Square test to determine if there is a significant association between these two variables in the sample of school children from the rural community. Interpret the results obtained and draw conclusions about the relationship with food in the community studied. Reflection Question: After performing the Chi-Square analysis and obtaining the results, reflect on what other variables could influence reducing the prevalence of anemia that were not included in this study?

They sold 13200 students tickets and 10450 for the next game. A stadium sold 12340 students tickets and 15670 general tickets for the first game. How many more tickets were sold for the first game? General tickets.

There is a $1,800 difference between the prices of two items. If the prices are in the ratio 3:4, what are the prices of the items?

Factorize x^3 -2x^2-16 by x-2

y''-6y'-27y=0 pvi y(0)=3 y'(0)=13

The difference between the measurements of an angle and its complementary angle is 40°. So the angle and its complementary angle measure:

A helicopter is hovering in the air, just above some firefighters who have been surrounded by a fire. A box containing food and additional personal protective equipment for the firefighters is dropped from the helicopter. The helicopter operator uses his instruments to calculate a height of 70 m above the ground. Calculate: If a kind of parachute is placed on the box that reduces the acceleration of the fall by a quarter, calculate again the time it takes the box to fall and the speed with which it hits the ground.

According to a survey conducted in 2021 in Mexico, 70% of the inhabitants are cell phone users. If a sample of 100 people is taken… What is the probability that at least 30 are NOT cell phone users? Question 3Answer to. 30% b. 53.76% c. 70% d. 10.56% help me solve the problem

Show that the following generating function is homogeneous and find the degree of nationality: Q = 2K1/2L3/2 Do operations to show whether this function exhibits diminishing returns to scale, constant returns to scale or increasing returns to scale? Explain the answer your. B) The number, N, of daily infections by a virus, n days after the start of one pandemic grows exponentially and can be exemplified by the relationship: N= 7 x 1.2 (raised to n) B.1) Find the number of infections when n=10. B.2) After how many days will the number of new infections exceed 1000?