Questions in Grade High-school

Questions in Grade High-school

[Homework Help] What is the square root of \( 13^2 \)?

[Homework Help] The fountain contains 20 pennies and 9 dimes. A coin is randomly taken and not replaced. A second coin is randomly taken. What is the probability that both coins are pennies?

[Homework Help] Use parentheses to make the equation true: \(9 - 8 \times 2 - 1 = 3\)

[Homework Help] Two billion people jump up in the air at the same time with an average velocity of 7.0 m/s. If the mass of an average person is 60 kilograms and the mass of Earth is [tex]$5.98 \times 10^{24}$[/tex] kilograms: a. What is the total momentum of the two billion people? b. What is the effect of their action on Earth?

[Homework Help] A ramp was built by the loading dock. The height of the loading platform is 4 feet. Determine the length of the ramp if it makes a 32° angle with the ground.

[Homework Help] Calculate the force between one grapefruit and Earth. Earth has a mass of [tex]5.9742 \times 10^{24} \text{ kg}[/tex] and a radius of [tex]6.3710 \times 10^{6} \text{ meters}[/tex]. Assume the grapefruit is resting on Earth’s surface.

[Homework Help] Solve: [tex]P \times 87 + 67 \times 87 + (33 - P) \times 87 = ?[/tex]

[Homework Help] The nine different classes of vertebrates include: A. Four fish classes and amphibians, reptiles, birds, whales, and mammals. B. Four fish classes and amphibians, reptiles, birds, mammals, and primates. C. Five fish classes and amphibians, reptiles, birds, and mammals. D. Five fish classes and amphibians, reptiles, monkeys, and mammals.

[Homework Help] How would I solve this problem: \(5 \frac{1}{4} - 2 \frac{5}{6}\)?

[Homework Help] Robert bought a used car for $1,500. If the sales tax is 5%, what will be the total amount that Robert has to pay for the car?