2 years ago

Solving right triangles

Mathematics

1 answer:

ratelena [41]2 years ago

3 0

All you need is use sin cos tan for doing this
sin (angle)= O/H
cos (angle)= A/H
tan (angle)= O/A

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If 9 (x) = – 5x2 – 4x + 19 find f (–3)

Sliva [168]

Answer:

- 14

Step-by-step explanation:

$f(x) = - 5 {x}^{2} - 4x + 19 \\ plug \: x = - 3 \\ f( - 3) = - 5 {( - 3)}^{2} - 4( - 3) + 19 \\ f( - 3) = - 5 \times 9 + 12 + 19 \\ f( - 3) = - 45 + 31 \\ f( - 3) = -14$

7 0

2 years ago

One interior angle of a triangle is 60⁰. The other angle measures are 25⁰ and x⁰. Which of the following could be the values of

BabaBlast [244]

Answer:

picture?

Step-by-step explanation:

3 0

2 years ago

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22/5 in simplest form

seraphim [82]

22/5 in simplest form is 4 2/5 because 22/5 is 4 with a remainder of 2, which is the numerator.

8 0

2 years ago

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Latanya was asked to determine if (375,4) lies on the circle with radius 7 centered at (0.-2). what is her error?

Vilka [71]

The point (3/5,4) would lie on the circle if it makes the equation of the circle to be true

Latansha's equation of the circle is wrong

<h3>How to determine her error?</h3>

The given parameters are:

Center = (a,b) = (0,-2)

Radius, r = 7

The equation of a circle is:

$(x - a)^2 + (y - b)^2 = 0$

This gives

$(x - 0)^2 + (y + 2)^2 = 0$

Rewrite as:

$x^2 + (y + 2)^2 = 0$

In Latanya's first step, we have:

$x^2 + (y - 2)^2 = 0$

By comparing her first step with x^2 + (y + 2)^2 = 0, we can see that her equation is wrong

Hence, Latansha's error is that she determine the equation of the circle, wrongly.

Read more about circle equations at:

brainly.com/question/1559324

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1 year ago

How do you solve 5y+4=4y+5

igor_vitrenko [27]

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7 0

2 years ago

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