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2 years ago

How to find the missing side of a triangle in trig for geometry

Mathematics

1 answer:

dsp732 years ago

8 0

Step-by-step explanation:

cosine is cos(angle)= adjacent/hypotenuse

sine is sin(angle) = opposite/hypotenuse

Tangent is tan(angle)= opposite/adjacent

for all of those

if the equation is something like tan(69)= x/69

multiply both sides by 69 so it will end up as x=69tan(69) and put that in the calculator

if it is something like tan(69)= 69/x

just swap x and tan(69)

it is much easier

it will then be 69/tan(69) and put that in the calculator

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8. What would be the area of a trapezoid whose bases are 6 m and 14 m with a height of 4 m? *

Korolek [52]

A=40m

A=a+b
2h=6+14
2·4=40m²

8 0

3 years ago

Find the x-intercepts of the parabola with vertex (1,-108) and y-intercept (0,-105). Write your answer in this form: (X1,y1), (x

Stolb23 [73]

Answer:

(7, 0) and (-5, 0)

Step-by-step explanation:

<u>Vertex form</u>

$y=a(x-h)^2+k$

(where (h, k) is the vertex)

Given:

vertex = (1, -108)

$\implies y=a(x-1)^2-108$

Given:

y-intercept = (0, -105)

$\implies a(0-1)^2-108=-105$

$\implies a(-1)^2=-105+108$

$\implies a=3$

Therefore:

$\implies y=3(x-1)^2-108$

The x-intercepts are when y = 0

$\implies 3(x-1)^2-108=0$

$\implies 3(x-1)^2=108$

$\implies (x-1)^2=36$

$\implies x-1=\pm \sqrt{36}$

$\implies x=1\pm 6$

$\implies x=7, x=-5$

Therefore, the x-intercepts are (7, 0) and (-5, 0)

7 0

2 years ago

PLEASE HELP I NEED HELP

bulgar [2K]

Yes because each x value differ by 2.5 and each y value also differs at aconstant rat of 1

3 0

3 years ago

Will do brainly for this

Tcecarenko [31]

Answer:

180 Degrees

Step-by-step explanation:

I had the same question and it worked/correct.

6 0

3 years ago

4) What is the unit rate? Explain what the unit rate means in this context.

hram777 [196]

Answer:

Unit rate in most contexts is how much a item cost if it is sold as a single serving(unit)

If you are trying to have a problem solved or it doesnt invovle price, please include the problem as well

8 0

3 years ago