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3 years ago

What is the speed of a train that travels 52 kilometers in 3 hours?

Mathematics

2 answers:

Over [174]3 years ago

5 0

Answer:

17 km/hr

Step-by-step explanation:

Speed=

$\frac{distance}{time}$

so, since the units are the same, kilometer per hour and hour, we simply divide

that's

$\frac{52}{3}$

and that's 17.333 approximately 17km/hr

qaws [65]3 years ago

4 0

Answer:

17 km/h

Step-by-step explanation:

52:3=17.3≈17 km/hour

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.. pls help me....!!!!! Determine whether the point (-2,4) satisfy y<3x+5,y=3x+5 or y >3x+5..

nasty-shy [4]

Answer:

$y > 3\cdot x + 5$

Step-by-step explanation:

Let $A(x,y) = (-2,4)$ and $y = 3\cdot x + 5$ . Now we evaluate the given function at $x = -2$ :

$y = 3\cdot x + 5$ (1)

$y = 3\cdot (-2)+5$

$y = -6 +5$

$y = -1$

Which means that $y$ is less than the y-component of A. Therefore, the right answer is $y > 3\cdot x + 5$ .

7 0

3 years ago

Ir J() = E and 9(1) = 2+3- -s find f0-8

Ivan

Answer:

2456.8

Step-by-step explanation:

J=×

9×1=2+3'5

f=2456.8

7 0

3 years ago

Help!!!!!! Quick Evaluate (x + y)° for x = -3 and y = 5. - 1/2 2 1 O

MrMuchimi

Answer:

it is 1

Step-by-step explanation:

The power of 0 causes all numbers to negate to 1.
Anything to the power of 0 is 1

For example:

(10)^0 = 1

7 0

2 years ago

Use the definition of continuity and the properties of limits to show that the function

Zepler [3.9K]

Answer:

Applied the definition and the limit.

They had the same result, so the function is continuous.

Step-by-step explanation:

At function f(x) is continuous at x = a if:

$\lim_{x \to a} f(x) = f(a)$

In this question:

$f(x) = x^{2} + 5(x-2)^{7}$

At x = 3.

$\lim_{x \to 3} x^{2} + 5(x-2)^{7} = 3^{2} + 5(3-2)^{7} = 14$

$f(3) = 3^{2} + 5(3-2)^{7} = 14$

Since $\lim_{x \to 3} f(x) = f(3)$ , f(x) is continuous at x = 3.

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3 years ago

What is 50% of 50? Use a diagram to show your work. Draw a diagram to help you.?

topjm [15]

Answer:

25.

Step-by-step explanation:

50% = 1/2 and 1/2 of 50 is 25. so 50% is 25.

8 0

3 years ago

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