Harmony Richman
Quiz von , erstellt am more than 1 year ago

Quiz am 1.5 - 1.6 Check-In, erstellt von Harmony Richman am 09/06/2014.

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Harmony Richman
Erstellt von Harmony Richman vor mehr als 10 Jahre
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1.5 - 1.6 Check-In

Frage 1 von 5

1

Solve: 2x + 3 < 11

Wähle eine der folgenden:

  • x < 4

  • x > 4

  • x < -4

Erklärung

Frage 2 von 5

1

Solve: -4 ( 3x - 5 ) > 2 ( x - 4 )

Wähle eine der folgenden:

  • x > 2

  • x < 2

  • x < -2

Erklärung

Frage 3 von 5

1

The amount of juice in a grapefruit is directly proportional to the cube of its diameter. A grapefruit with a 4-inch diameter contains 6 fluid ounces of juice. How much juice is contained in a grapefruit with a 5-inch diameter?

The amount of juice is 11.7 ounces.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 4 von 5

1

The area of a projected picture on a movie screen varies directly as the square of the distance from the projector to the screen. If a distance of 2 feet produces a picture with an area of 64 square feet, what distance produces a picture with an area of 100 square feet?

The distance is 3 feet.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 5 von 5

1

The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of its speed and inversely as the radius of the curve. It takes 2800 pounds of force to keep an 1800 pound car from skidding on a curve with a radius of 425 feet at 45 mph. What force is needed to keep the same car from skidding when it takes a similar curve with a radius of 450 feet at 55 mph?

Wähle eine der folgenden:

  • 3944.6

  • 3900

  • 3950

Erklärung