Answer:
The answer is 17.02, to the nearest tenth is 17.
Step-by-step explanation:
Under the radical, that us take the square root of the following sum:
(Jx - Cx )^2 + (Jy - Cy)^2
Substitute in the values:
(6 - (-7))^2 + (2 - (-9))^2 =
This becomes:
(6+7)^2 + (2 + 9)^2 =
13^2 + 11^2 =
169 + 121 =
Sqrt 290 =
17.029 = To the nearest 10th is 17
b. What are the speeds of the two cyclists? Put both values in the answerbox, separated with a comma, and select the appropriate units.
Answer:
Speed of a= 21 miles/hr
r = Speed of b= 7 miles/hr
Speed of a = 3r
Step-by-step explanation:
The cyclist are 112 miles apart
Time traveled by two = 4 hours
Speed of a = 3 * speed of b
If a cylcles 3 times More than b, then a will cover 3*distance of b
But speed = distance/time
Time = 4hours
Total distance=112
a = 3b
3b + b = 112
4b = 112
b = 112/4
b = 28 miles
a = 3b
a = 3*28
a = 84 Miles
They bought traveled 4 hours
Speed of a = 84miles/4 hours
Speed of a= 21 miles/hr
Speed of b = 28miles/4 hours
Speed of b = 7 miles/hr
The slower cyclist is traveling at a speed of 7 mph, while the faster cyclist is traveling at 21 mph.
We first need to recognize that the sum of the distances travelled by each cyclist is equal to the total 112 miles. We can let r represent the speed of the slower cyclist, and since the faster cyclist is traveling 3 times the speed of the slower, we can call his speed 3r.
As they each traveled for 4 hours, the slower cyclist traveled a distance of 4r miles, and the faster cyclist traveled a distance of 4 × 3r = 12r miles. Their combined distances should equal the total distance between them, 112 miles. This forms the equation 4r + 12r = 112.
To solve for r, we combine the like terms on the left side of the equation to get 16r = 112. Dividing both sides by 16, we find r = 7 miles per hour. Therefore, the slower cyclist is traveling at 7 mph, and the faster cyclist is traveling 3 times that speed, giving us 21 mph.
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Answer:
Yes students should be confident in addition before they proceed to mulplication.This is because addition is the base of multiplication and requires mastery before you start,so It would be much easier to solve
Answer: 7z + 17
Step-by-step explanation: add 15 and 2
Step-by-step explanation:
since x=4 is a vertical line,there is no y-intercerpt and the slope is undefined.