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What is 25% of 200?
25% of 200 is 50. view more
Science & Nature
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What is the area of a triangle?
Area = ½ × base × height The height must be perpendicular to the base. view more
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What is 15% of 80?
15% of 80 is 12. view more
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What is 8 cubed?
8 cubed is 512. view more
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What is 1/3 + 1/4?
1/3 + 1/4 = 7/12 Step by step: 1. view more
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What is the quadratic formula?
x = (-b ± √(b²-4ac)) / 2a Used to solve equations in the form: ax² + bx + c = 0 The discriminant (b²-4ac) determines solutions: - Positive: 2 real solutions - Zero: 1 real solution - Negative:... view more
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What is Avogadro's number?
6.022 × 10²³ This is the number of particles (atoms, molecules, ions) in one mole of any substance. view more
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How many planets are in our solar system?
8 planets: Inner (rocky): 1. view more
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What is Ohm's Law?
V = IR (Voltage = Current × Resistance) Where: - V = voltage (volts) - I = current (amps) - R = resistance (ohms) Example: 2 amps through 5 ohms = 10 volts view more
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What is the largest planet?
Jupiter Stats: - Diameter: 139,820 km (11× Earth's) - Mass: 318× Earth's - More mass than all other planets combined - 95 known moons Mainly composed of hydrogen and helium. view more
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What is photosynthesis?
The process plants use to convert sunlight into food. view more
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What causes the seasons?
Earth's 23.5° axial tilt (not distance from Sun) How it works: - Northern Hemisphere tilts toward Sun → Summer - Northern Hemisphere tilts away → Winter Southern Hemisphere has opposite seasons... view more
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What is standard deviation?
A measure of how spread out data is from the mean. view more
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What is the GCD of 24 and 36?
The GCD (Greatest Common Divisor) of 24 and 36 is 12. view more
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What is the chemical formula for water?
H₂O Each water molecule contains: - 2 hydrogen atoms - 1 oxygen atom Molecular weight: ~18 g/mol The bent molecular shape gives water its unique properties (polarity, high boiling point). view more
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How do you calculate probability?
Probability = favorable outcomes ÷ total possible outcomes Range: 0 (impossible) to 1 (certain) Examples: - Coin flip (heads): 1/2 = 0.5 = 50% - Die roll (any number): 1/6 ≈ 16.7% view more
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What is kinetic energy?
KE = ½mv² (half mass times velocity squared) Example: - Mass: 2 kg - Velocity: 3 m/s - KE = ½ × 2 × 9 = 9 Joules Kinetic energy is the energy of motion. view more
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How do you solve 3x - 7 = 2x + 4?
x = 11 Step by step: 1. view more
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What is the slope-intercept form?
y = mx + b Where: - m = slope (rise/run) - b = y-intercept (where line crosses y-axis) Example: y = 2x + 3 - Slope: 2 (rises 2 for every 1 right) - Y-intercept: 3 view more
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What is 5 to the power of 4?
5 to the power of 4 is 625. view more