2 years ago

How long will it take the United States to travel 1 kilometer

Mathematics

1 answer:

Svetradugi [14.3K]2 years ago

3 0

It would take (100 km/hr)= 0.01 hr or 36 seconds.

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30 POINTS TO ANSWER!!!!!

Ede4ka [16]

Answer:

y = -4(-8) +3

y= 35

yea

that is the out put so 35

3 0

2 years ago

There are 9 more turtles in the water than on a log. 13 turtles are on the water. How many turtles are on a log? Please explain

Snezhnost [94]

Well the answer is 4 because 13 in the water
9 more than the ones on the log
so the log has 9 turtles less than the turtles in the water

4 0

2 years ago

Look at the comparison below3/10 is this comparison statement correct

bixtya [17]

What statement? 3/10

?

3 0

3 years ago

Read 2 more answers

The leg of a triangle is 7 cm and the hypotenuse is 13 cm. What is the length of the other leg of the triangle?

defon

Answer:

2√30

Step-by-step explanation:

Pythagorean Theorem: a^2 + b^2 = c^2

7^2 + b^2 = 13^2

b^2 = 120

b = 2√30

6 0

2 years ago

Exact value of cos45

Anit [1.1K]

It's a value you should probably memorize:

$\cos45^\circ=\dfrac{\sqrt2}2=\dfrac1{\sqrt2}$

You can derive it using some trigonometric identities, other known values of cosine, and properties of the cosine function. For example, using the double angle identity for cosine:

$\cos^2x=\dfrac{1+\cos2x}2$

If $x=45^\circ$ , then

$\cos^245^\circ=\dfrac{1+\cos90^\circ}2$

and you probably know that $\cos90^\circ=0$ , so

$\cos^245^\circ=\dfrac12$

When we take the square root, we should take the positive root because $\cos x>0$ whenever $0^\circ$ :

$\cos45^\circ=+\sqrt{\dfrac12}\implies\cos45^\circ=\dfrac1{\sqrt2}$

4 0

3 years ago