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3 years ago

the surface area of a square pyramid is 84 square inches. the side length of the base is 6 inches. what is the value of x?

Mathematics

1 answer:

Sladkaya [172]3 years ago

8 0

The formula is(V=B•h)(84•6)

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Write the ratio in the simplest form 3 cups of sugar to 27 cups of milk

Verizon [17]

Answer: 3:27

you would divide both by 3

3/3 =1

27/3= 9

so your ratio in simplest form is 1 cup of sugar: 9 cups of milk

4 0

3 years ago

Write the equation in standard form 3x + 1 = 2y

yulyashka [42]

The standard form of an equation is
$ax + by = c$

In the question, we have the following formula
$3x + 1 = 2y$

To get the formula in standard form, we first have to subtract 2y from both sides (since we need to get 2y on the left side)
$3x - 2y + 1 = 0$

Finally we subtract 1 from both sides (since we need the number on the right side)
$3x - 2y = - 1$

Hence, 4. is the correct answer.

8 0

3 years ago

Math:

Dahasolnce [82]

Answer:

a) $x_{1} = \frac{\pi}{3}\pm 2\pi \cdot i$ , $\forall i \in \mathbb{N}_{O}$ , $x_{2} = \frac{5\pi}{6}\pm 2\pi\cdot i$ , $\forall i \in \mathbb{N}_{O}$ , b) $x_{1} = \frac{\pi}{3}\pm 2\pi \cdot i$ , $\forall i \in \mathbb{N}_{O}$ , $x_{2} = \frac{5\pi}{3}\pm 2\pi\cdot i$ , $\forall i \in \mathbb{N}_{O}$

Step-by-step explanation:

a) The equation must be rearranged into a form with one fundamental trigonometric function first:

$\sqrt{3}\cdot \csc x - 2 = 0$

$\sqrt{3} \cdot \left(\frac{1}{\sin x} \right) - 2 = 0$

$\sqrt{3} - 2\cdot \sin x = 0$

$\sin x = \frac{\sqrt{3}}{2}$

$x = \sin^{-1} \frac{\sqrt{3}}{2}$

Value of x is contained in the following sets of solutions:

$x_{1} = \frac{\pi}{3}\pm 2\pi \cdot i$ , $\forall i \in \mathbb{N}_{O}$

$x_{2} = \frac{5\pi}{6}\pm 2\pi\cdot i$ , $\forall i \in \mathbb{N}_{O}$

b) The equation must be simplified first:

$\cos x + 1 = - \cos x$

$2\cdot \cos x = -1$

$\cos x = -\frac{1}{2}$

$x = \cos^{-1} \left(-\frac{1}{2} \right)$

Value of x is contained in the following sets of solutions:

$x_{1} = \frac{\pi}{3}\pm 2\pi \cdot i$ , $\forall i \in \mathbb{N}_{O}$

$x_{2} = \frac{5\pi}{3}\pm 2\pi\cdot i$ , $\forall i \in \mathbb{N}_{O}$

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3 years ago

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Ratling [72]

Answer: 8.51

Step-by-step explanation:

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3 years ago

Give an example of a time when finding the percentage of a number would be useful. Explain.

kupik [55]

When you're out shopping and something you want to buy is on sale. You can take the original price and give it's percentage to find out how much it really is.

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3 years ago