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3 years ago

Please help!! I have trouble in math and will give points and thanks for this!!

Mathematics

2 answers:

pshichka [43]3 years ago

3 0

Answer:

-5

Step-by-step explanation:

You can count backwards from -1.

-1, -2, -3, -4, and then -5 is the blue dot.

The left side of 0 is the negative side. The right side is the positive side.

Hope this helps!

Gelneren [198K]3 years ago

3 0

Answer:

-5

Step-by-step explanation:

If you're going backward on the number line then you are in the negative zone because of -1

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Find the missing side lengths. Leave your answer as radicals in simplest form.

Ronch [10]

Answer:

Hence x = y = 2

Step-by-step explanation:

Using the SOH CAH TOA identity

Hypotenuse = 2√2

Opposite = x

theta = 45

Sin theta = opp/hyp

Sin 45 =x/2√2

1/√2 = x/2√2

x = 2√2 * 1/√2

x = 2

To get y we will use the pythagoras theorem;

(2√2)² = x² +y²

(2√2)² = 2²+y²

8 = 4 + y²

y² = 8-4

y² = 4

y = √4

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Hence x = y = 2

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3 years ago

Please help! thanks so much

Stels [109]

Answer:

See below.

Step-by-step explanation:

First, we can see that $\lim_{x \to 2} (f(x))= -1$ .

Thus, for the question, we can just plug -1 in:

$\lim_{x \to 2} (\frac{x}{f(x)+1})=\frac{(2)}{-1+1} =und.$

Saying undefined (or unbounded) will be correct.

However, note that as x approaches 2, the values of y decrease in order to get to -1. In other words, $f(x)$ will always be greater or equal to -1 (you can also see this from the graph). This means that as x approaches 2, f(x) will approach -.99 then -.999 then -.9999 until it reaches -1 and then go back up. What is important is that because of this, we can determine that:

$\lim_{x \to 2} (\frac{x}{f(x)+1})=\frac{(2)}{-1+1} = +\infty$

This is because for the denominator, the +1 will always be greater than the f(x). This makes this increase towards positive infinity. Note that limits want the values of the function as it approaches it, not at it.

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Answer:

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3 years ago

A semi-circular garden has an area of 18pie m2 what is the perimeter of the garden

nataly862011 [7]

Answer:

6 $\pi$

Step-by-step explanation:

We know that the area of a circle is equal to $\pi$ $r^{2}$ .

A semi-circle is a half-circle, meaning that it will have half of the area of a full circle.

Therefore, a semi-circle's area is equivalent to $\frac{\pi r^{2} }{2}$ .

Set this equation equal to 18 $\pi$ .

Solve for r.

We then find that r = 6.

Now, we need to find the circumference. We know that the equation for the circumference of a circle is 2 $\pi$ r. Since we only need the perimeter of half of a circle, our circumference equation will equal $\pi$ r.

Plug 6 in for r.

The perimeter of the garden is equal to 6 $\pi$ .

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2 years ago