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Popular Questions
What is the calculation for IQ?
The IQ of person is given by the formula, IQ=mc×100, where m is the mental age and c is the chromological age. If 80≤IQ≤140 for a group of 12-year children, find the range of their mental age.
What was Einstein's IQ?
His performance beats those of physicists Stephen Hawking and Albert Einstein, who were both estimated to have IQs around 160.
How to measure IQ in calculator?
The IQ score can be calculated with the formula of IQ = (intelligence age/actual age) x100.
Is 120 a good IQ?
An IQ score over 140 indicates that you're a genius or nearly a genius, while 120 - 140 is classed as "very superior intelligence". 110 - 119 is "superior intelligence", while 90 - 109 is "normal or average intelligence".
What is the glass safety factor for aquarium?
3.8 is the default safety factor for most aquariums because it minimizes the risk of your glass breaking.
How thick is 4 feet aquarium glass?
For example, the basic 55-gallon aquarium is 4-foot-by-15-inches, which is an average size that most hobbyists are familiar with. This tank is normally constructed of 1/4-inch-thick (six millimeters) glass.
How thick should glass be for 6 feet aquarium?
Medium-size fish tanks of 5 x 3 feet dimensions require at least 12mm to 16mm glass thickness which can hold 15 gallons of water. A large fish tank having 8 x 6 feet dimensions should use at least 20 mm glass thickness for it to be durable and strong enough to hold 65 gallons of water for the marine species.
How do I choose the thickness of my aquarium glass?
Glass thickness is indicated in millimeters (mm), with the number in parenthesis below it indicating the safety factor. To help you choose between thicknesses, aim for the thickness that has a safety factor of 3.8 or greater.
What are the top 5 formulas in math?
Completing the square: x2+bx+c=(x+b2)2−b24+c. Quadratic formula: the roots of ax2+bx+c are −b±√b2−4ac2a. Circle: circumference=2πr, area=πr2. Sphere: vol=4πr3/3, surface area=4πr2. Cylinder: vol=πr2h, lateral area=2πrh, total surface area=2πrh+2πr2.
What are basic mathematical calculations?
The basic operations involved in arithmetic are addition, subtraction, multiplication, and division.
What are some common formulas?
Area of Rectangle: area = length x width. ... Perimeter of a rectangle: 2(l + b) ... Area of a square: a² ... Perimeter of a square: 4 x a. ... Area of a circle: π x r² ... Circumference of a circle: 2π x r. ... Find the Average: Sum of total numbers divided by the number of values.
What are the 9 formulas of algebra?
a2 – b2 = (a – b)(a + b) (a + b)2 = a2 + 2ab + b2 a2 + b2 = (a + b)2 – 2ab. (a – b)2 = a2 – 2ab + b2 (a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca. (a – b – c)2 = a2 + b2 + c2 – 2ab + 2bc – 2ca. (a + b)3 = a3 + 3a2b + 3ab2 + b3 ; (a + b)3 = a3 + b3 + 3ab(a + b)
How do you calculate RGB color?
The typical approach to averaging RGB colors is to add up all the red, green, and blue values, and divide each by the number of pixels to get the components of the final color.
What color is this RGB color code 255 255 255?
White: RGB(255,255,255)
What is RGB 0 1 to 255?
RGB - Three Numbers one each for red, green, and blue. In RGB, a color is defined as a mixture of pure red, green, and blue lights of various strengths. Each of the red, green and blue light levels is encoded as a number in the range 0.. 255, with 0 meaning zero light and 255 meaning maximum light.
What is the hex code for white RGB 255255255?
#FFFFFF Hex Color | RGB: 255, 255, 255 | WHITE.
What is the easiest calculator for statistics?
As far as statistics is concerned, the best calculator for statistics is the TI-83, though the TI-89 comes close. My recommendation is because: It's the best bang for your buck, at about half the price of a TI-89. Most professors (including myself) use it in the classroom.
What is the best calculator for statistics?
Texas Instruments TI-36X Pro Engineering/Scientific Calculator. CATIGA CS-121 Scientific Calculator with Graphic Functions. Casio FX-991EX Engineering/Scientific Calculator. Sharp Calculators EL-W535TGBBL 16-Digit Scientific Calculator with WriteView. Mr.
How do you calculate standard deviation easily?
Step 1: Find the mean. ... Step 2: Find each score's deviation from the mean. ... Step 3: Square each deviation from the mean. ... Step 4: Find the sum of squares. ... Step 5: Find the variance. ... Step 6: Find the square root of the variance.
Can you use a TI-89 for statistics?
With the Texas Instruments TI-89, you can calculate the most commonly-used descriptive statistics for one variable (mean, standard deviation, sum of values, sum of the values-squared) and for regression/correlation between two variables (regression coefficient and intercept, correlation coefficient).
What is the easiest calculator?
1 Casio Standard Function Calculator – Best Overall. 2 Amazon Basics Desktop Calculator – Best Features. 3 CATIGA Office Style Calculator – Best Functionality. 4 EooCoo Basic Standard Calculator – Best Use. 5 Sharp White Business Calculator – Best Display.
Where is my calculator on this phone?
To access the Calculator, swipe up on a Home screen to open the Apps screen, and then navigate to and tap Calculator.
Can you use your phone as a calculator?
You can do simple or advanced calculations with your phone's Calculator app . Important: You can use the Calculator app on Android 6.0 and up. Get the Calculator app on the Google Play Store.