Answer:
If you're asking what cosine 3 is it's 0.9999986292247
Step-by-step explanation:
I don't really understand the question
Answer:
false, false
Step-by-step explanation:
C' is (5, 4)
A' is (5, -4)
Each side of the triangle is larger in the image, and the area is larger.
Answer: false, false
The freight train speed = 22 mph
The passenger train speed = 28 mph
Step-by-step explanation:
Assign the speed of the freight train as; <em>x </em>mph
Since the passenger train travels 6 mph faster than the freight train, its speed will be; (<em>x + 6</em>) mph
In 2 hours, the freight and passenger trains will have traveled (distance = speed * time);
2<em>x</em> and 2(<em>x + 6</em>) miles respectively
Both add up to 100 miles. Therefore;
2x + 2(x +6) = 100
4x + 12 = 100
4x = 88
x = 22
x + 6 = 28
The freight train speed = 22 mph
The passenger train speed = 28 mph
4 hours = 304 miles.
1 hour = 304 ÷ 4
1 hour = 76 miles
7 1/2 hours = 76 x 7 1/2
7 1/2 hours = 570 miles.
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Answer: It will travel 570 miles in 7 1/2 hours.
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Answer:
Step-by-step explanation:
What is 2 units up and 0 to the right from (-4,2).