# francisco

Popular questions and responses by francisco
1. ## Statistics

The mean grade in this class last semester was 78.3, and the variance was 49 . The distribution of grades was unimodal and symmetrical. Using this information determine the probability that “Joe”, a random student you know nothing about, other than the

2. ## math

Joe filled a 10-cup watering can with water. He then poured some of the water on his tomato plants. How can Joe find out how much water he used for his tomato plants?

3. ## Physical Science

A camcorder has a power rating of 16 watts. If the output voltage from its battery is 4 volts, what current does it use?

4. ## physical

A car traveling at 28 m/s starts to decelerate steadily. It comes to a complete stop in 13 seconds. What is its acceleration?

5. ## Physical Science

The law of reflection states that if the angle of incidence is 7 degrees, the angle of reflection is ___ degrees.

6. ## Physical Science

A clothes dryer uses about 2 amps of current from a 240 volt line. How much power does it use?

7. ## Physics

On a particular airplane wing, air flows over the upper surface with a speed of 115 m/s and along the bottom surface with a speed of 90 m/s during flight. If the area of the wing is 140 m^2, what is the lift force on the wing? Air density is 1.29 kg/m3.

8. ## Physical Science

What is the wavelength of an earthquake wave if it has a speed of 8 km/s and a frequency of 8 Hz?

9. ## Science

Dicot is to two seed leaves as blank is to one seed leaf.

10. ## Physics

The modern Boeing 747 passenger jet airplane cruises at a speed up to 900 km/hr, at an altitude of 11,000 m. The cabin pressure is maintained equivalent to the atmospheric pressure at an altitude of 2,000 m. This is called the "cabin altitude". The

11. ## physics

A car traveling in a straight line has a velocity of 3.19 m/s at some instant. After 5.4 s, its velocity is 12 m/s. What is its average acceleration in this time interval?

12. ## math

A pole 12 feet tall casts a shadow 9 feet long. How tall is a tree that casts a shadow 54 feet long?

13. ## calculus

The radius of a right circular cylinder is given by sqr( t + 6) and its height is 1/6 sqr(t) , where t is time in seconds and the dimensions are in inches. Find the rate of change of the volume with respect to time.

14. ## fibers and fabrics

To remove a coffee stain from a cotton shirt, you should

15. ## CHEMISTRY

^H FOR CS2+3O>CO2+2SO2

16. ## Algebra

how to find th equation that passes though (1,3) and (8,5) is there a formula to find the answer>

17. ## science/physics

A 230kg ball moving at velocity of 25m/s collides with a 420 kg ball that is not moving. What is the final velocity after contact

i need help with a sentence in future tense (it clins to branches and twigs)

19. ## math

9+8log9 (9X)=81

1. ## math

????

posted on November 27, 2019
2. ## MATH

It seems that I don't know.

posted on February 12, 2018
3. ## math fractions

First, you find the least common multiple for 3,6, and 12. Then, you put the 12 as the denominator and divide by the original fractions 3/12, 1/6, and 1/3.

posted on February 12, 2018
4. ## Physical Science

A 1.5m wire carries a 9 A current when a potential difference of 89 V is applied. What is the resistance of the wire? The current in a hair dryer measures 10 amps. The resistance of the hair dryer is 8 ohms. What is the voltage?

posted on February 7, 2018
5. ## Physical Science

Thanks....

posted on February 7, 2018
6. ## Physical Science

7?

posted on February 7, 2018
7. ## Physical Science

thanks

posted on February 6, 2018
8. ## Language Arts

also your the one acting like you know anything so don't blame it one us if were cussing

posted on November 11, 2017
9. ## Language Arts

so at least we have a life unlike you coming to search for answers

posted on November 11, 2017
10. ## Language Arts

Hey baby cakes stop acting the solution to this problem plus u shut up cause you stupid coming to a website for answers so be judging us cause were cursing

posted on November 11, 2017

see like kitti b she put something wrong on number 8 put light as the emotion of the character its supposed to be cheerful

posted on November 4, 2017
12. ## floral design

What should wedding-floral consultants always do?

posted on October 26, 2015
13. ## math

Thank you

posted on February 11, 2014
14. ## math

648 = 9x ÷9 ÷9 72 = X

posted on February 11, 2014