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Nuetrik [128]
3 years ago
8

BRAINLIEST PLEASE ANSWER PRE CALC

Mathematics
1 answer:
ahrayia [7]3 years ago
8 0

We know that sin (2x) = 2 sinxcosx.

So, sin (2x) + sin (x) - 2 becomes

2sin xcosx + sinx- 2.

Factor out sinx.

sinx(2cosx + 1 - 2)

sinx(2cosx - 1)

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Using the GCF factor the given expression: 21xy + 14y
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Answer:

7y(3x+2)

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3 years ago
Find missing side and find perimeter <br> Brainiest to first to answer
vekshin1

Answer:

Missing side = 6.7cm

Perimeter = 42.438cm

Step-by-step explanation:

The missing side will be the diameter of the semicircle

Missing side = 9.2cm - 2.5cm

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8 0
3 years ago
1) Each student has 2 shoes. How many shoes are there for 8 students?
Murrr4er [49]
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2 years ago
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Which term best describes the point where the three altitudes of a triangle intersect
kolezko [41]
Hi!

The point where the three altitudes of a triangle intersect is called the orthocenter.

Altitudes are lines which pass through the the vertex of a triangle, and bisect the other side.

There are three other points like an orthocenter; an incenter, a circumcenter, and a centroid. They're where the angle bisectors, the perpendicular bisectors, and the medians of a circle intersect, respectively.

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7 0
4 years ago
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