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2 years ago

4 divided by 3678 pls help

Mathematics

2 answers:

Monica [59]2 years ago

5 0

Answer:

0.00108754758 If 4/3678 and 919.5 if 3678/4

Step-by-step explanation:

Molodets [167]2 years ago

3 0

Answer:

Answer: 2/1839

Step-by-step explanation:

4 ÷ 3678 = 0.00108754758 or 2/1839

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2 years ago

A train travels 540 miles in 4.5 hours. What is the train's rate in miles per hour?

mezya [45]

Answer:

The train travels at 120 miles per hour.

Step-by-step explanation:

All we have to do is divide 540 by 4.5

540 ÷ 4.5 = 120

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2 years ago

What is a 100 x 1 milion plz help me need it for math

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3 years ago

If 9 : x = x:4, then x = _____. 36 18 24 6

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Solution: 9:x = x:4

⇛9/x = x/4

By doing cross multiplication, we get

⇛9(4) = x(x)

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⇛x = √(36)

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∴ x = 6 Ans.

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2 years ago

Upper AA 66-ft-tall fence runs parallel to a wall of a house at a distance of 3030 ft. Find the length of the shortest ladder t

Mkey [24]

Answer:

0.33 ft

Step-by-step explanation:

From the diagram, triangle ACE is similar to triangle BCD.

Therefore,

$\frac{b}{30+b} = \frac{6}{a}$

$a=\frac{6(30+b)}{b}$

Let the Length of the Ladder, L

Using Pythagoras theorem

$L^{2}=(30+b)^{2}+(\frac{6(30+b)}{b})^{2}$

$L^{2}=\frac{(30+b)^{2}(36+b^{2})}{b^{2}}$

$L=\sqrt{\frac{(30+b)^{2}(36+b^{2})}{b^{2}} }$

$L=\frac{30+b}{b}\sqrt{b^2+36}$

To find the least value, we have to equate the derivative of L to 0.

$L^{1}=\frac{b^{3}-1080}{b^{2}\sqrt{b^2+36}}$

Therefore:

b³-1080=0

b³=1080

b=10.26

The minimum length of the ladder is:

$L=\frac{30+10.26}{10.26}\sqrt{10.26^2+36}$

=0.33 ft

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3 years ago