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3 years ago

Help on this please will give brainiest

Mathematics

2 answers:

KIM [24]3 years ago

8 0

Answer:

Function = Linear

Domain = (3,infinite)

Range = (1,infinite)

bazaltina [42]3 years ago

3 0

Function = Linear
Domain = (3,infinite)
Range = (1,infinite)

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PLEASE HELP MEEE!!! Pete is trying to get a loan. He has a credit score of 480. How is Pete’s lender likely to view this credit

KiRa [710]

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3 years ago

Given right triangle ABC, with altitude CD intersecting AB at point D. If AD = 5 and DB = 8, find the length of CD, in simplest

galben [10]

First we dra a triangle:

To prove that the triangles are similar we have to do the following:

Considet triangles ABC and ACD, in this case we notice that angles ACB and ADC are equal to 90°, hence they are congruent. Furthermore angles CAD and CAB are also congruent, this means that the remaining angle in both triangles will also be congruent, therefore by the AA postulate for similarity we conclude that:

$\Delta ABC\approx\Delta ACD$

Now consider triangles ABC and BCD, in this case we notice that angles ACB and BDC are congruent since they are both equal to 90°. Furthermore angles ABC and DBC are also congruent, this means that the remaining angle in both triangles will, once again, be congruent. Hence by the AA postulate we conclude that:

$\Delta ABC\approx\Delta BCD$

With this we conclude that traingles BCD and ACD are both similar to triangle ABC, and by the transitivity property of similarity we conclude that:

$\Delta ACD\approx BCD$

Now that we know that both triangles are similar we can use the following proportion:

$\frac{h}{x}=\frac{y}{h}$

this comes from the fact that the ratios should be the same in similar triangles.

From this equation we can find h:

$\begin{gathered} \frac{h}{x}=\frac{y}{h} \\ h^2=xy \\ h=\sqrt[]{xy} \end{gathered}$

Plugging the values we have for x and y we have that h (that is the segment CD) has length:

$\begin{gathered} h=\sqrt[]{8\cdot5} \\ =\sqrt[]{40} \\ =\sqrt[]{4\cdot10} \\ =2\sqrt[]{10} \end{gathered}$

Therefore, the length of segment CD is:

$CD=2\sqrt[]{10}$

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2 years ago

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Oliga [24]

Answer:

2n+2*3-6n

(-2*-3)+4n-(4n*2)

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3 years ago

HURRY I NEED IT DONE FAST, LOTS OF POINTS, GIVING BRAINLIEST!!!

Ilia_Sergeevich [38]

Answer:

x = 2

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the slope-intercept equation of the line below?

tino4ka555 [31]

Answer:

The slope-intercept form:

$y = -3x +4$

Step-by-step explanation:

-To get the slope-intercept equation, you first need to find the slope by using this equation $m = \frac{rise}{run}$ (starting counting from the first point, to the second point) in order to get the slope. After you have the slope, you need to find the y-intercept ( y-intercept is where the line crosses the y axis of the graph, basically). So, to find that, you need look for the point that only crosses the y axis to get the y-intercept. After you have both the slope and y-intercept, you put it in slope-intercept form:

The two points I found from the following graph are:

$( 1, 1)$ and $(2, -2)$

Trick: Since the line of the graph shows that it is down (not up), Start counting down from point $( 1, 1)$ to point $(2, -2)$ . Then, find the y-intercept:

$m = \frac{-3}{1} = -3$