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Matematica

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 Name _____________________________ Date ___________________

Classify the number as rational, irrational, or not a real number.
1.
-
 -196

2.
10
 9

4

3.
 16

 4
 5 3.14159
6.
-
 21

 7 1.85767
 8 *Questa è una scheda preparata.Utilizza il link nella parte superiore della pagina per ottenere una pagina stampabile.

Trova la circonferenza di ciascun cerchio. Formula la tua risposta in termini die arrotonda anche la tua risposta al decimo più vicino.
9.

10.
 diameter = 14 mm

11.
 diameter = 51.78 mm

12.
 54
mm

13.

14.
 diameter = 22 m

Completa.
 15 Stephanie made three posters for National Black Poetry Day. Each poster had a biography of a poet and some examples of the poet's work on it. She chose Arna Bontemps, Langston Hughes, and Zora Neal Thurston for her posters. She mounted her pictures, biographies, and poems on three sheets of poster board cut into circles with diameters of twenty-six inches. How many square inches of poster board did she use for the circles?
 16 Luis went to the amusement park and bought a ticket for a ride called The Screw. A long metal arm eight feet long with a seat at each end rotated around a pole with an inclined plane. If the metal arm was eight feet long from end to end, what was the circumference of the circle made by the ends of the pole as it rotated around the center?

 Key #2
Trova l'area di ciascun cerchio. Formula la tua risposta in termini die arrotonda anche la tua risposta al decimo più vicino.
17.
diameter =
 23
cm

18.

19.

20.
 diameter = 4.76 m

21.

22.
 diameter = 36 cm

Find the radius of the circle. (use= 3.14)
23.
 C  = 38 cm

24.
 A  = 121 m2

25.
 C  = 7 mm

26.
 A  = 649.3 cm2

27.
 C  = 22.52 cm

28.
 C  = 75.23 m

Trova il volume di ciascun solido arrotondato al decimo più vicino. (utilizza= 3.14)
29.
 a  = 12 ft b  = 15 ft c  = 47.2 ft

30.
 a  = 33 yd b  = 52 yd

31.
 a  = 2 cm b  = 55 cm

Trova il volume di ciascun solido arrotondato al decimo più vicino. (utilizza= 3.14)
32.
 a  = 6 yd b  = 11 yd

33.
 a  = 11.2 km

34.
 a  = 4 ft b  = 7 ft

 Key #2
Trova l'area della superficie di ciascun solido arrotondata al decimo più vicino. (utilizza= 3.14)
35.
 a  = 11.19 cm

36.
 a  = 17.2 in b  = 9.6 in c  = 9.6 in

37.
 a  = 3 mm b  = 14 mm

Completa.
 38 A hard rubber disk is1.2inches thick and4inches in diameter. It must be between5.4e6.5ounces in weight. What is the allowable density range (in ounces per cubic inch) of such a disk? Round your answer to the nearest hundredth.
 39 Justin made seven pepperoni pizzas for a party. He cut the pepperoni himself from a sausage that was12inches long and1 1/2inches in diameter. The pizzas were each16inches in diameter. His friend Megan is a real math whiz (a math freak some say) and took the opportunity to calculate what percent of the total pizza surface area was covered by pepperoni. The pepperoni was cut into slices1/4of an inch thick. Each pizza has the same number of whole pepperoni slices (he ate any extra pepperoni!). What percent of the total pizza surface area was covered by the pepperoni? Round your answer to the nearest hundredth.

Completa.
 40 A hard rubber disk is1.3inches thick and3inches in diameter. It must be between5.4e6.4ounces in weight. What is the allowable density range (in ounces per cubic inch) of such a disk? Round your answer to the nearest hundredth.
 41 Captain Snorkel is supervising the construction of his new tourist submarine. The sub design calls for the installation of18round view ports with each view port being20inches in diameter. How many square feet of transparent material will be included in the view ports? ______ ft2

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Iscritti a edHelper - Crea un nuovo stampabile
La soluzione include anche le domande
La soluzione fornisce solo le risposte
Nessuna soluzione