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3 years ago

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David plants a tree that is 3 feet tall. at the end of the 4 years it has grown to be 6 feet tall, and then stops growing. after

7 years, david cuts down the tree to put in a pool. what is the domain, in years, of the function that represents the height of the tree?

1 answer:

Andrews [41]3 years ago

5 0

I honestly have no clue but h(x)=g(x+2)-1

I just need points sry

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Plz plz plzzzz help plz !!!

bixtya [17]

I think the last two are correct.
Hope it helps

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2 years ago

What is the inequality represented by this graph? (pls help its worth 30 points and ill give brainliest if ur correct :D)

Yakvenalex [24]

Step-by-step explanation:

We find the equation of the solid blue line:

The line decreases by 1 unit for every 3 units across.

=> Slope of line = -1/3.

Also the y-intercept is 1.

=> Line equation: y = -1/3 x + 1.

We see that the graph below this line is shaded.

Therefore all y-values below or on the line are represented by the graph.

=> y <= -1/3 x + 1.

The answer is y <= -1/3 x + 1.

4 0

2 years ago

Solve the equation for a.

nataly862011 [7]

Answer:

a=-7.68

Step-by-step explanation:

3a+13.61=-9.43

-13.61

_____________

-23.04

3a=-23.04

-23.04/3= -7.68

7 0

2 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%7B%7D%5E%7B2%7D%20-%204%20%7D%7B%20%5Csqrt%7Bx%20%7B%7D%5E%7B2%7D%20-%206x%2

Nimfa-mama [501]

First of all, we can observe that

$x^2-6x+9 = (x-3)^2$

So the expression becomes

$\dfrac{x^2-4}{\sqrt{(x-3)^2}} = \dfrac{x^2-4}{|x-3|}$

This means that the expression is defined for every $x\neq 3$

Now, since the denominator is always positive (when it exists), the fraction can only be positive if the denominator is also positive: we must ask

$x^2-4 \geq 0 \iff x\leq -2 \lor x\geq 2$

Since we can't accept 3 as an answer, the actual solution set is

$(-\infty,-2] \cup [2,3) \cup (3,\infty)$

7 0

2 years ago

Find the value of x, question and choices attached above

Levart [38]

Answer:

<h2>E. 22</h2>

Step-by-step explanation:

<em>Look at the picture</em>.

The lines <em>l</em> and <em>m</em> are parallel, therefore alternate interior angles are congruent.

Therefore $\beta=50^o$

Supplementary angles add up to 180°.

Therefore

$(5x-16)+\theta=180$ <em>add 16 to both sides</em>

$5x+\theta=196$ <em>subtract 5x from both sides</em>

$\theta=196-5x$

We know: the sum of the triangle angle measures is 180°.

Therefore we have the equation:

$50+2x+196-5x=180\\\\-3x+246=180\qquad\text{subtract 246 from both sides}\\\\-3x=-66\qquad\text{divide both sides by (-3)}\\\\x=22$

8 0

3 years ago