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2 years ago

9

My best subject is math, but my favorite subject is science. what type of sentence is this?

1 answer:

Liono4ka [1.6K]2 years ago

3 0

A)Declarative because your telling them your favorite subject :)

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Selling Price = $70 Rate of Sales Tax = 6% What is the sales tax? What is the total price?

Hatshy [7]

Answer:

Tax = $4.2, Total price = $74.2

Step-by-step explanation:

Multiply 70 by 0.06 to get the price of the tax

4.2

Add 70 and 4.2 to get the total price

74.2

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2 years ago

Two northern towns are at record low temperatures. One is at -13 degrees and the

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Answer:

9 degrees is the answer you are looking for

Step-by-step explanation:

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What is the recursive rule for the following sequence: -5, -3, -1, 1…

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$a_{n}$ = $a_{n-1}$ + 2

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3 years ago

7.Find the lengths of the missing sides in the triangle. If your answer is not an integer, leave it in simplest radical form. Th

Fed [463]

Here a right angled triangle given. one angle with measure $45^o$ given. The three sides of the triangle given 4, x, y.

We have to find, the sides which is opposite, adjacent and hypotenuse here.

We know that the side opposite to right angle is always hypotenuse. So, hypotenuyse = y.

The side adjacent to the given angle $45^o$ is x. So, here adjacent = x.

The opposite side is opposite to the given angle. So, opposite = 4.

Now we will use SOHCAHTOA that is $sin(x) =\frac{Opposite}{Hypotenuse} , cos(x) =\frac{Adjacent}{Hypotenuse} , tan(x) =\frac{Opposite}{Adjacent}$ , where x is the angle given.

To get x, we will use tan. So we will get,

$tan(45^o) = \frac{4}{x}$

We know the value of $tan(45^o) = 1$ . By substituting the value we will get,

$1 =\frac{4}{x}$

To find x, we have to move x here to the left side by multiplying it to both sides. We will get,

$(1)(x) = (\frac{4}{x}) (x)$

$x = 4$

So we have got the value of x here.

Now to find y, we will use the trigonometric function sine.

$sin(45^o) =\frac{4}{y}$

we know the value of $sin(45^o) =\frac{\sqrt{2}}{2}$

By substituting the value we will get,

$\frac{\sqrt{2}}{2} = \frac{4}{y}$

By cross multiplying we will get,

$(\sqrt{2}) (y) = (4)(2)$

$\sqrt{2}y = 8$

We will get y by dividing both sides by $\sqrt{2}$ , we will get,

$\frac{\sqrt{2}y}{\sqrt{2}} =\frac{8}{\sqrt{2} }$

$y =\frac{8}{\sqrt{2} }$

Now we will rationalize the denominator by multiplying $\sqrt{2}$ to the top and bottom.

$y =\frac{8\sqrt{2}}{(\sqrt{2})(\sqrt{2})}$

$y =\frac{8\sqrt{2}}{2}$

$y = 4\sqrt{2}$

So we have got the required values of x and y.

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3 years ago

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What is equivalent to 40/64

Nadya [2.5K]

Answer: 5/8

Step-by-step explanation:

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2 years ago