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4 years ago

What is the cube root of pi

Mathematics

1 answer:

nalin [4]4 years ago

3 0

Answer: Approximately 1.465

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What is the volume of one cylinder?

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What is 4, 4.9, 4 3/4, 4.329 in order from greatest to least

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4, 4.329, 4 3/4, 4.9

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9. The length of a rectangle is 3 cm longer than twice the width. If the area of the rectangle is 65 cm2,

makvit [3.9K]

Answer:

length: 13 cm

width: 5 cm

Step-by-step explanation:

You may be aware that 65 = 5×13. We note that 13 is 3 more than twice 5, so these are the dimensions of the rectangle:

5 cm wide; 13 cm long

If you want so solve this algebraically, you can let w represent the width. Then the length is 2w+3 and the area is ...

A = LW

65 = (2w+3)(w)

In standard form, this equation is ...

2w^2 +3w -65 = 0

To factor this, you look for factors of 2×(-65) = -130 that have a sum of 3. Those would be ...

-130 = (-10)(13)

Then the factored equation is ...

2w^2 +13w -10w -65 = 0

w(2w+13) -5(2w+13) = 0

(w -5)(2w +13) = 0 ⇒ w = 5, -13/2

The positive solution makes sense in this problem, so ...

width = 5 cm

length = 2(5) +3 = 13 cm

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3 years ago

Lynn is trying to determine how far away Student B is from the balloon. He decides to use the

kaheart [24]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete as the image that illustrates the scenario is not given.

However, I can deduce that the question is about a right-angled triangle.

So, I will give a general explanation on how to find each of the side of the triangle, given a side and an angle.

For triangle A (solve for b)

Using cosine formula.

$\cos \theta = \frac{Adjacent}{Hypotenuse}$

$\cos 60= \frac{5}{b}$

Make b the subject

$b= \frac{5}{\cos 60}$

For triangle B (solve for b)

Using cosine formula.

$\sin \theta = \frac{Opposite}{Hypotenuse}$

$\sin 60= \frac{b}{5}$

Make b the subject

$b = 5\sin 60$

For triangle C (solve for b)

Using cosine formula.

$\tan \theta = \frac{Opposite}{Adjacent}$

$\tan 60= \frac{b}{5}$

Make b the subject

$b = 5\tan 60$

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3 years ago

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Kyle buys 3 bags of Takis at the store. He pays $4.50 to the cashier. How much does each bag of Takis cost?

trapecia [35]

Answer:

1.50$

Step-by-step explanation:

4.50/3= 1.50

Hope this helps.

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3 years ago

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