Lightwaves travel from the air into a lens made of glass. Their velocity decreases as they enter the glass. How does this affect the frequency and wavelength of the lightwaves

1) What is the area of a sector with a central angle of 5π/7 radians and a diameter of 5.6 in.? Use 3.14 for π and round your final answer to the nearest hundredth. Enter your answer as a decimal in the box.

How many pairs of parallel sides does a trapezoid have? A) none B) one C) three D) two

A magician shoed a magic trick where he picked one card from a stacked deck. Determine what probability is that the card will be a queen card

Simplify the polynomial: 2[4x-5 (2x-1) ]

Victors wants to buy fertilizer for his yard. The yard mesures 50 feet by 60 feet. The directions on the bag of fertilizer say that one bag will cover 1,220 sq feet.

28,062 divided by 3

Using measures of central tendency: 5. Write and solve an equation to find the value of "x". 3.8, 4.2, 5.3, x; mean 112 7. Write and solve an equation to find the value of "x". 100, 121, 105, 113, 108, x; mean 112 9. Find the range.

Add. Question 4 3/8x^3 + 7/2x

Mina picks 63 flowers from her garden. She can put 10 flowers in each vase how many vases can she fill. how many extra flowers will she have?

Find the ratio a:b, if it is given that ... 5a+3b=6b