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3 years ago

All of the triangles are 45-45-90 triangles. Find x Please show how you did it.

Mathematics

1 answer:

Finger [1]3 years ago

5 0

Answer:

3/√2

Step-by-step explanation:

find the details in the attachment (this is not the shortest way).

The shortest way is: to prove ED=AB, then to calculate x=AB/√2=3/√2.

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Blababa [14]

Answer:

chapter name and then I explained your questions

3 0

3 years ago

Find the missing side of the triangle. Round your answer to the nearest tenth if necessary.

Soloha48 [4]

Answer:

Step-by-step explanation:

pythagoras theorem

a^2+b^2=c^2

8^2+x^2=10^2

64+x^2=100

x^2=100-64

x= $\sqrt{36$

x=6 km

5 0

3 years ago

Read 2 more answers

The width of a rectangular field is 20 feet less than its length. The area of the field is 12,000 ft? What is the length of the

Scilla [17]

Answer:

The answer is 120 feet.

Step-by-step explanation:

The area of the field (A) is:

A = w · l (w - width, l - length)

It is known:

A = 12,000 ft²

l = w - 20

So, let's replace this in the formula for the area of the field:

12,000 = w · (w - 20)

12,000 = w² - 20

⇒ w² - 20w - 12,000 = 0

This is quadratic equation. Based on the quadratic formula:

ax² + bx + c = 0 ⇒

In the equation w² - 20w - 12,000 = 0, a = 1, b = -20, c = -12000

Thus:

So, width w can be either

Since, the width cannot be a negative number, the width of the field is 120 feet.

6 0

2 years ago

Read 2 more answers

And a wildlife preserve 46 ducks are captured tagged and then released. Later to her ducks are examined in four of the 200 ducks

docker41 [41]

Answer:

2300

Step-by-step explanation:

We are given that

Out of 200 , four ducks are tagged.

We have to find the number of ducks in the preserve if 46 ducks are tagged.

Let x be the number of ducks in the preserve.

If number of tagged ducks increases then number of preserved ducks also increases.It is in direct proportion.

According to question

$\frac{x}{46}=\frac{200}{4}$

$x=\frac{200\times 46}{4}$

$x=50\times 46$

x=2300

4 0

3 years ago

1 question 60 points need help now

kkurt [141]

Answer:

The answer to your question is x = 0 and x = 1

Step-by-step explanation:

Equation

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

$\frac{x(x + 1) + (x - 2)(x - 1)}{(x - 2)(x + 1)} = - 1$

Expand

2) x² + x + x² - x - 2x + 2 = -1(x - 2)(x + 1)

Simplify

3) 2x² -2x + 2 = -1(x² + x - 2x - 2)

4) 2x² - 2x + 2 = -x² + x + 2

Equal to zero

5) 2x² - 2x + 2 + x² - x - 2 = 0

6) 3x² - 3x = 0

Factor

7) 3x(x - 1) = 0

8) 3x₁ = 0 x₂ - 1 = 0

9) x₁ = 0/3 x₂ = 1

10) x₁ = 0 x₂ = 1

4 0

3 years ago