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3 years ago

What is the easiest to understand formula for solving 45 45 90 special right triangles?

Mathematics

1 answer:

alexgriva [62]3 years ago

4 0

Step-by-step explanation:

45°, 45°, 90° triangle theorem states that:

Lengths of the sides opposite to the 45° angle are equal to one upon root two times of the length of hypotenuse.

Mathematically it can be expressed as:

$length \: of \: sides \: opposite \: to \: 45 \degree \: \\ angle \\ = \frac{1}{ \sqrt{2} } \times length \: of \: hypotenuse.$

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Write the first five terms of the sequence defined by the explicit formula

denis-greek [22]

Answer:

The correct answer option is: 19, 13, 3, -11, -29.

Step-by-step explanation:

We are given the following explicit formula for an arithmetic sequence:

$a_n=21-2n^2$

So to find the first five terms of this sequence, we will substitute the values of $n$ (num here in the given formula:

$a_1=21-2(1)^2\\\\a_1=19$

$a_2=21-2(2)^2\\\\a_2=13$

$a_3=21-2(3)^2\\\\a_3=3$

$a_4=21-2(4)^2\\\\a_4=-11$

$a_5=21-2(5)^2\\\\a_5=-29$

Therefore, the first five terms of the sequence defined by the explicit formula $a_n=21-2n^2$ are 19, 13, 3, -11, -29.

5 0

3 years ago

Read 2 more answers

An acute angle θ is in a right triangle with sin θ = five sixths. What is the value of cot θ?

Molodets [167]

The value of cot is √13/6

6 0

3 years ago

A/n _______ is a quadrilateral that has two pairs of congruent sides and two pairs of parallel sides.

gogolik [260]

I’m guessing a parallelogram

4 0

3 years ago

Summit Plummet's big drop starts at point A(0, 120) and ends at point B (56, 0). What's the slope from point A to point B?

Makovka662 [10]

Answer:

15/-7

Step-by-step explanation:

slope is y(2) - y(1) / x(2) - x(1)

120-0/0-56

120/-56

simplified

7 0

3 years ago

How do you do this ?

Sedaia [141]

This is the answer
first you must eliminate the denominator and that you do with multiplication
then eliminate the number that is on the same side of the letter and that you do it by placing the same number but with a different sign and so you have the answer.

also there is the check.

6 0

3 years ago