1 year ago

Alg 2 the problem is below please help !!!

Mathematics

1 answer:

KiRa [710]1 year ago

3 0

The answer is: -72.19634511

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The coordinates of the endpoint of QS are Q(-9,8) and S(9,-4). Point R is on cue as such that QR:RS Is in the ratio 1:2. What ar

marishachu [46]

R(–3, 4)

Step-by-step explanation:

Let Q(-9,8) and S(9,-4) be the given points and let R(x, y) divides QS in the ratio 1:2.

By section formula,

$R(x, y)=R\left(\frac{m x_{2}+n x_{1}}{m+n}, \frac{m y_{2}+n y_{1}}{m+n}\right)$

Here, $x_{1}=-9, y_{1}=8, \text { and } x_{2}=9, y_{2}=-4 \text { and } m=1, n=2$

Substituting this in the section formula

$R(x, y)=R\left(\frac{1(9)+2(-9)}{1+2}, \frac{1(-4)+2(8)}{1+2}\right)$

To simplifying the expression, we get

$\Rightarrow R(x, y)=R\left(\frac{9-18}{3}, \frac{-4+16}{3}\right)$

$\Rightarrow R(x, y)=R\left(\frac{-9}{3}, \frac{12}{3}\right)$

⇒ R(x,y) = R(–3,4)

Hence, the coordinates of point R is (–3, 4).

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2 years ago

the perez family has a rectangle fish tank. How much water will the tank hold if its length is 3 feet, its width is 2 feet, and

myrzilka [38]

V = 3 x 2 x 3 = 18

answer

B) 18 cubic feet

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2 years ago

Aaron runs a distance of 7.2km in the SE direction. How far east has Aaron run? Answer correct to one decimal point

timofeeve [1]

Step-by-step explanation:

cos 45° = distance to east / total distance=7,2

distance to east = cos 45° * 7,2 = 5,1 km

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1 year ago

-5(4+2x)-14x simplify the expression

siniylev [52]

Answer:

− 20 − 24 x

Step-by-step explanation:

simplify

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2 years ago

Read 2 more answers

I really need help at this. Pleas help!!

Alik [6]

Answer: x>-5

It is x is greater than or equal to -5

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2 years ago