Answer:
Sinx = 21/40
x = inverse of sin (21/40)
x= 31.6682
hope u got it
Answer:
Width is 72 cm and the length is 108 cm
Step-by-step explanation:
Since the scale is 4 cm:30 ft
Divide both the width and length of the rectangle playground to match the dimensions of Martina's scale model.
540÷30=18 ft 810÷30=27 ft
To match the Martina's scale model of 4 cm:30 ft, multiply 18 ft and 27 ft by 4
Answer:
144.
Step-by-step explanation:
Sum of n terms = (n/2)[a1 + l] where a1 = first and l = last term.
There are ( 1 + 23) / 2 = 12 terms in this series.
So the sum = (12/2) [ 1 + 23]
= 6 * 24
= 144.
1 length is 4.75 feet
42 lengths = x feet Cross multiply
1 * x = 42 * 4.75 Multiply on the right
x = 199.5
amount left = amount started with - amount amount used
Amount left = ???
Amount started with = 240 feet.
Amount used = 199.5 Substitute
Amount left = 240 - 199.5 Subtract
Amount left = 40.5 Answer
