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2 years ago

There are values of t so that sin t=.3 and cos t=-.6 True or false

Mathematics

2 answers:

antiseptic1488 [7]2 years ago

8 0

Answer:

false

Step-by-step explanation:

ape x

nignag [31]2 years ago

5 0

Using the identity sin^2(t)+cos^2(t)=1
and
given sin(t)=0.3,
we can find cos(t) by substituting
sin^2(t)+cos^2(t)=1
0.3^2+cos^2(t) = 1
cos^2(t)=1-0.3^2=1-0.09=0.91
cos(t)=sqrt(0.91)= 0.954 ≠ 0.6
So the given proposition is false.

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1 year ago

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I you're looking for the equation, it is

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3 years ago

Seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight; seed mixture Y is 25 percent ryegrass and 75.percent f

irinina [24]

Answer:

33%

Step-by-step explanation:

Assuming the weight of the mixture to be 100g**, then the weight of ryegrass in the mixture would be 30g.

Also, assume the weight mixture X used in the mixture is Xg, then the weight of mixture Y used in the mixture would be (100-X)g.

So we can now equate the parts of the ryegrass in the mixture as:

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So the weight of mixture X as a percentage of the weight of the mixture

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3 years ago

An equilateral triangle has one length of 3 meters. What are the lengths of the other two sides?

topjm [15]

Answer:

the other sides are 3 meters as well

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