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  • Waiting for answer How do I find the directrix of the parabola ##y=2x^2##?

    To find the directrix of a parabola wohse equation is ##y=ax^2+bx+c## you can use this formula: ##y= (-1-(b^2-4ac))/(4a)## So in case of this parbola ##y=2x^2## the directrix is ##y=(-1-(0^2-4*2*0))/(4*2)## ##y=-(1)/(8)##

  • Waiting for answer The diameter of the circle is 16 centimeters. What is the r...

    Radius is ##8## centimeters. As diameter of a circle is double the radius (see figure below) the radius of a circle of diameter ##16## centimeters is ##16/2=8## centimeters.

  • Waiting for answer What is biology?

    Biology is derived from the Greek words "bios" means life and "logos" meaning to study and is defined as the science of life and living organisms. It is a science that deals with the living organism together with their morphology, anatomy physiology their origin and also their relationship within on...

  • Waiting for answer What is a noun phrase in linguistics?

    Noun Phrase Modifies Noun EXAMPLE Noun = House The House is over there. Noun Phrase = Yellow The YELLOW house is over there.

  • Waiting for answer What's ##42 2/3## divided by ##1/3##?

    ##42 2/3 -: 1/3=128## ##color(blue)("For a moment consider just the "42 2/3)## write this as ##42+2/3## This is the same as: ##" "[42color(magenta)(xx1)]+2/3##...

  • Waiting for answer What are the differences between a lytic infection and a lys...

    Lytic- active, lysogenic- dormant. Some (i'll stress here Herpes viruses) can undergo 2 life cycles; lysogenic and lytic cycle. Now, let us look at the lytic cycle first. 1. In on...

  • Waiting for answer What percent of 55 is 34?

    ##= color(blue)(62 % ## ##34/55 = 0.6181 =0.62## rounding off to nearest ##100.## ## 34/ 55 xx 100 =0.62 xx 100 ## ##= 62 % ##

  • Waiting for answer The density of water is 1.00 g/mL at 4°C. How many water mol...

    ##8.23 * 10^(22)## The idea here is that you need to use the of water at ##4^@"C"## and the volume of the sample to find its mass, then use water's molar mass to find how many moles...

  • Waiting for answer What is needed for a wave to start?

    Energy is required for the propagation of waves..it may be any kind of energy like sound, light etc Sound waves disturbs the equilebrium of gas particles so it is transferred from o...

  • Waiting for answer In what year did the Boston Tea Party occur?

    1773 People in the 1700s loved tea. A lot. And the best tea was grown in India, which happened to be a British colony. England set up a company, called the British East India Compan...

  • Waiting for answer How do cellular respiration and breathing differ?

    Breathing involves inhale of oxygen from the atmosphere into the lungs and exhale of carbon dioxide from the lungs into the atmosphere ; whereas cellular respiration involves breakdown of glucose into carbon dioxide and water in living cells, releasing energy. During breathing, termed as external...

  • Waiting for answer How do you write 2,000,000 in scientific notation?

    in 2,ooo,ooo = 2 x ##10^6##

  • Waiting for answer Why is the mass for elements on the periodic table written a...

    A perfectly logical question! The atomic mass of an element is equal to the number of protons plus the number of neutrons constituting its nucleus. Protons and neutrons have the mass of an Hydrogen nucleus. So, to find the atomic mass of any element, we basically sum up integer numbers of Hydrogen...

  • Waiting for answer Name each of the following compounds?

    ##A)## The first one is a kind of hydrocarbon. When we identify the main chain, we can create the parent name to the IUPAC name. The main chain has ##4## carbons (here, it is depicted horizontally), which corresponds to the prefix ##"but"-##. This has no double bonds or triple bonds, so it is a...

  • Waiting for answer Why is projectile motion parabolic?

    is parabolic because the vertical position of the object is influenced only by a constant , (if constant drag etc. is also assumed) and also because horizontal velocity is generally constant. Put simply, basic projectile motion is parabolic because its related equation of motion, ##x(t) = 1/2 at^...

  • Waiting for answer Are organelles living??

    No. Why aren't organelles considered alive? It is they are not self-sufficient. But there are theory that mitochondria and chloroplast were once a living cell. It is known as Symbiotic Theory. You can read further details in..http://earthguide.ucsd.edu/virtualmuseum/virtualmuseum/Organellessymbios...

  • Waiting for answer What is the slope of a line perpendicular to the x-axis?

    The slope of a line perpendicular to the x-axis is undefined. Perpendicular lines have opposite reciprocal slopes. For example, ##1/2## and ##-2/1=-2## are opposite reciprocals and lines with these slopes will be perpendicular to one another. If the x-axis is treated as a horizontal line, we can...

  • Waiting for answer What is the difference between pulmonary and systemic circul...

    Pulmonary circulation refers to the circulation of blood in which deoxygenated blood is pumped from the heart to the lungs and oxygenated blood is returned to back to the heart. Pulmonary circulation only occurs between the heart and the lungs. Systemic circulation refers to the circulation of bl...

  • Waiting for answer According to the following reaction, how much energy is evo...

    I'm going to guess it has something to do with which reagent you used as the , and the value you used for your of reaction. The limiting reagent , the one that is used up first, dictates how much product you will make. Here is a fairly quick way to figure out which reagent it is. THE LIMITING REA...

  • Waiting for answer What is the chemical formula for sodium sulfite?

    Na2SO3 The numbers are subscripts.

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