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aivan3 [116]
3 years ago
9

Help me with this it’s due today

Mathematics
1 answer:
maw [93]3 years ago
6 0

Answer:

the fifth answer is the right one

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2sin^2x - sinx - 3 = 0
e-lub [12.9K]
We have that
2sin²<span>x - sinx - 3 = 0
</span>
Let
A------> sin x
so
2A²-A-3=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solutions are
A=-1
A=1.5------> is not solution because sin x <span>can not be 1.5

the solution is
A=-1
therefore
sin x=-1
x=arc sin(-1)=-90</span>°

the answer is
sin x=-1
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8 0
3 years ago
I just need help with b and c
My name is Ann [436]

Answer:

B. Carl yearns more per hour

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Step-by-step explanation:

Louis earns 12$ per hr (y=12x)

Carl yearns 15$ per hr (y=15x)

to find what carl yearns hourly you divide 45 by 3 which is 15.

(Explaination of answer for question b)

C isnt hard once you find y=15x.

8 0
4 years ago
there are 9 students in a class: 7 boys and 2 girls. if the teacher picks a group of 3. at random, what is the probability. that
timurjin [86]
There is a 1 out of 3 chance of a full boy group

6 0
4 years ago
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