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grandymaker [24]

2 years ago

8

JUST HELP PLS I POSTED THIS SO MANY TIMES AND NO HELPP AND NO LINKS I WILL REPORT!! PLSS HELPPP MEE I NEED TO GRADUATE!!! Which

of the following equations describes the line shown below? Check all that apply.

1 answer:

Nikitich [7]2 years ago

8 0

Answer:

d hope it helps make brainlliest ty

Step-by-step explanation:

someone report my question in here

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Find the missing lengths: LK=15 and KH=9, find KI and HI.

Luda [366]

Answer:

KI=11.25 and HI=6.75

Step-by-step explanation:

Consider the below figure attached with this question.

According to Pythagoras Theorem:

$base^2+perpendicular^2=hypotenuse^2$

Use Pythagoras in triangle HKL

$LH^2+KH^2=LK^2$

$(LH)^2+9^2=15^2$

$(LH)^2+81=225$

$(LH)^2=144$

Taking square root on both sides.

$LH=12$

Let length of HI be x.

LI = 12+x

Use Pythagoras theorem in ΔKLI,

$(KI)^2+15^2=(12+x)^2$

$(KI)^2+225=x^2+24x+144$

$(KI)^2=x^2+24x+144-225$

$(KI)^2=x^2+24x-81...(1)$

Use Pythagoras theorem in ΔHKI,

$(KI)^2=x^2+9^2$

$(KI)^2=x^2+81...(2)$

From (1) and (2) we get

$x^2+81=x^2+24x-81$

$24x=162$

$x=\dfrac{162}{24}=6.75$

Hence, the measure of HI is 6.75 units.

Substitute x=6.75 in equation (2).

$(KI)^2=(6.75)^2+81$

$(KI)^2=126.5625$

Taking square root on both sides.

$KI=\sqrt{126.5625}$

$KI=11.25$

Hence, the measure of KI is 11.25 units.

3 0

3 years ago

Please help need 1 more to passss guys !!!!!!!!!!!!!

Drupady [299]

A) 40
b) 3
c) 5

Hope this helps

7 0

3 years ago

What is the difference between experimental and nonexperimental methods of study? Nonexperimental methods involve operational de

Anon25 [30]

Experimental methods involve the manipulation and control of variables, whereas non experimental methods require simple observation of the variables.

Answer: Option D.

<u>Explanation:</u>

Non-experimental research about doesn't mean nonscientific. Non-experimental investigate implies there is an indicator variable or gathering of subjects that can't be controlled by the experimenter. Test plan, then again, takes into consideration specialists to control the indicator variable and subjects.

Non experimental research falls into three broad categories: single-variable research, correlational and quasi-experimental research, and qualitative research.

3 0

3 years ago

25. Find the sum of (8p2-2p + 15) and (11 – 2p2 – 1).

Vlad [161]

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>:</em><em>)</em>

6 0

2 years ago

Read 2 more answers

6) BRAINLIEST AND 15 + POINTS :)

aniked [119]

Answer:

C

Step-by-step explanation:

y》0.5x + 1.8

x = 4, y = 4.5

4.5》0.5(4) + 1.8

4.5》3.8 (true)

7 0

2 years ago