3 years ago

in rectangle PQRS, shown below, the diagonal PR is 15 meters. if the sine of angle SPR is 7/10, what is the value of RS?

Mathematics

1 answer:

lora16 [44]3 years ago

5 0

Answer:sin =perpendicular/hypotenuse

Step-by-step explanation:

Sin angle is given use tan theta or cos theta to find the RS

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lubasha [3.4K]

Answer:

see attachment

Step-by-step explanation:

The given equation is

$- \frac{1}{2} {x}^{2} + 2 = 2 {x}^{2} - 8$

The graph of the left hand side of this equation is

$y = - \frac{1}{2}{x}^{2} + 2$

This quadratic graph has its vertex at (0,2) and turns upside down.

The right hand side of the equation is

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This quadratic graph opens upwards and has its vertex at (0,-8).

The two graphs intersects at two points , which are (-2,0) and (2,0).

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3 years ago

Without building the graph, find the coordinates of the points of intersection of the graph of the equation (x+2)(y+3)=0 with th

Vladimir79 [104]

We have that
(x+2)(y+3)=0

we know that

Part A)
the x-intercept is when y=0
for y=0
(x+2)(0+3)=0--------> (x+2)*3=0------> 3x+6=0----> 3x=-6----> x=-2
the point is (-2,0)

Part B)
the y-intercep is when x=0
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Vesna [10]

Answer:

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−

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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