Answer:
5.7 meters
Step-by-step explanation:
Image a rectangle being cut diagonally in half, that would lead to two triangles. We can use the pythagorean theorem to find the missing side.
7 is the hypotenuse and 4 is the side length
4^2+x^2=7^2
16+x^2=49
sqrx=sqr(49-16)
x=sqr33
x=5.74
Rounded to the nearest tenth is 5.7
Original price of the video game = $42
Percentage of discount = 25%
Amount of discount = 42 * (25/100) dollar
= 42 * (1/4) dollar
= (42/4) dollar
= (21/2) dollar
= $ 10.5
Actual sale price of the video game = (42 - 10.5) dollar
= 31.5 dollar
So we come to know that the amount of discount given is $10.5 and the sale price of the video game is $31.5
Answer:
Step-by-step explanation:
a₁₂ = a₅ + (12-5)d
72 = 23 + 7d
d = 7
a₃ = a₅ + (3-5)d = 23 - 2⋅7 = 9
a₂ = a₃ - d = 9-7 = 2
a₁ = a₂ - d = 2 -7 = -5