The peregrine falcon is the fastest known bird with a maximum speed of 320 kilometers per hour which of the following equations where d is the distance in kilometer and t is the time in hours represents a speed that is less than the speed of the falcon choose all correct answers
a) d = 230t
b) d = 3.2t
c) d = 2300t
d) d = 23t

Equations in options A, B, and D gives the speed less than the speed of the Falcon.

Step-by-step explanation:

The peregrine Falcon is the fastest known bird with a maximum speed of 320 kilometers per hour.

Now, in option (A) the distance d, in Km and time t, in hours are related to each other by the equation d = 230t.

Therefore, the speed is 230 km/hour which is less than 320 km/hour.

Now, in option (B) the distance d, in Km and time t, in hours are related to each other by the equation d = 3.2t.

Therefore, the speed is 3.2 km/hour which is less than 320 km/hour.

Now, in option (C) the distance d, in Km and time t, in hours are related to each other by the equation d = 2300t.

Therefore, the speed is 2300 km/hour which is greater than 320 km/hour.

Now, in option (D) the distance d, in Km and time t, in hours are related to each other by the equation d = 23t.

Therefore, the speed is 23 km/hour which is less than 320 km/hour.

Hence, equations in options A, B, and D give the speed less than the speed of the Falcon. (Answer)

the answers c

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.