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Novay_Z [31]
3 years ago
7

7sin^2x+sinx-6=0 Does any one know the answer to this and how to solve???

Mathematics
1 answer:
sweet [91]3 years ago
7 0

Answer:

7Sin^2x+(7-6)sinx-6=0

7sin^2x+7sinx-6sinx-6=0

7sin(sinx+1)-6(sinx+1)=0

(sinx+1)(7sin-6)=0

either, or,

sinx+1=0 7sin-6=0

sinx=-1 sin=6/7

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andreev551 [17]
1200/200 in a simplified form is
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3 years ago
In front of a store, there is a row of parking spaces. Cars park parallel to one another, with the front of each car facing the
Gelneren [198K]

The width used for the car spaces are taken as a multiples of the width of

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Correct response:

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<h3 /><h3>Methods used to obtain the above response</h3>

Let <em>x</em><em> </em>represent the width of the cars parked compact, and let a·x represent the width of cars parked in full size spaces.

We have;

Initial space occupied = 10·x + 12·(a·x) = x·(10 + 12·a)

New space design = 16·x + 9×(a·x) = x·(16 + 9·a)

When the dimensions of the initial and new arrangement are equal, we have;

10 + 12·a = 16 + 9·a

12·a - 9·a = 16 - 10 = 6

3·a = 6

a = 6 ÷ 3 = 2

a = 2

Whereby the factor <em>a</em> < 2, such that the width of the full size space is less than twice the width of the compact spaces, by testing, we have;

10 + 12·a < 16 + 9·a

Which gives;

x·(10 + 12·a) < x·(16 + 9·a)

Therefore;

The initial total car park space is less than the space required for 16

compact spaces and 9 full size spaces, therefore; the store owners are

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Learn more about writing expressions here:

brainly.com/question/551090

5 0
2 years ago
A businessman is required to collect a 5% sales tax. One day he collected $281 in taxes. Find the total amount of sales he made
malfutka [58]
I don't fully understand the question but I hope this helps...

I believe this would mean he made $1405 that day.
3 0
3 years ago
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fiasKO [112]
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6 0
3 years ago
Read 2 more answers
Pls Help ASAP if you. Can
n200080 [17]
I think it’s b because it would make the most sense I believe but I’m really sorry if I’m wrong
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