3 years ago

The system of linear equations 5 x + 3 y = 3 and x + y = negative 1 is graphed below.

Mathematics

2 answers:

Thepotemich [5.8K]3 years ago

7 0

Answer:

I think the answer is (4,-3)

Makovka662 [10]3 years ago

5 0

The answer to this question will be (4,-3)

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Question 16 (Essay Worth 7 points)<br><br> Verify the identity.<br><br> tan (x + π/2) = -cot x

Rus_ich [418]

Step-by-step explanation:

We know that tan=sin/cos, so tan(x+π/2)=

$\frac{sin(x+pi/2)}{cos(x+pi/2)}$

Then, we know that sin(u+v)=sin(u)cos(v)+cos(u)sin(v),

so our equation is then

$\frac{sin(x)cos(\pi/2)+cos(x)sin(\pi/2)}{cos(x+\pi/2)} = \frac{cos(x)}{cos(x+\pi/2) }$

Then, cos(u+v)=cos(u)cos(v)-sin(u)sin(v), so our expression is then

$\frac{cos(x)}{cos(x)cos(\pi/2)-sin(x)sin(\pi/2)} = \frac{cos(x)}{-sin(x)} = -cot(x)$

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3 years ago

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Alexxandr [17]

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4 0

3 years ago

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F(x) = 8x - 10

otez555 [7]

Fx=8(20) -10
fx= 160-10
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3 years ago

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You have a 45-gallon jug and a 124-gallon jug. neither of the jugs has any markings (although you do know their capacities). des

Alja [10]

Pour 4 times of 124-gallon into a big jug.
Amount of water = 124 x 4 = 496 gallons

Then use the 45-gallon jug to scoop out the water 11 times.
Amount of water scooped out = 11 x 45 = 455 gallons

Water remaining = 496 - 450 = 1 gallon.

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3 years ago

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8_murik_8 [283]

Check the picture below.

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3 years ago