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3 years ago

Find three points that solve , then plot on the graph. -2x-3y=-7

Mathematics

1 answer:

Fittoniya [83]3 years ago

4 0

Hello,
The points are:
(2,1); (1,5/3); (5,-1)

Bye:-)

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What graph shows the system of linear equations for which (-3/2,0) is a solution

Tamiku [17]

Answer:

See description.

Step-by-step explanation:

Any graph where the two lines intersect at (-3/2, 0) will be the correct graph.

Here is an attached example.

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3 years ago

Prove the following identity true. Show work.

yulyashka [42]

Answer:

The Pythagorean identity states that

$\sin^2 t + \cos^2 t = 1$

Using that we can rewrite the left denominator as:

$1 - \sin^2 t$

Which can be factored as

$(1 - \sin t)(1+ \sin t)$

The numerator we can expand as:

$(1 - \sin t)(1 - \sin t)$

On the right hand side, let's multply numerator and denominator with (1 - sin t):

The total formula then becomes:

$\dfrac{(1-\sin t)(1-\sin t)}{(1 - \sin t)(1 + \sin t)} = \dfrac{(1-\sin t)(1 - \sin t)}{(1+\sin t)(1 - \sin t)}$

There you go... left and right are equal.

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3 years ago

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Steven has a bag of 20 pieces of candy. Four are bubble gum, 4 are chocolates, 4 are fruit chews, and the rest are peppermints.

Delicious77 [7]

There are 20 pieces in the bag all together. Four are chocolate.
The probability of picking a chocolate with his eyes closed is 4/20.

In simplest form, that's 1/5 or 20% .

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3 years ago

Find the second derivative y=1/5x^2+1/11x

Amiraneli [1.4K]

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$\frac{dy}{dx}=\frac{2}{5}.x+\frac{1}{11}$

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3 years ago

3x/7 in verbal expression

FrozenT [24]

The answer to this equation in verbal expression would be 'the product of 3 and a number divided by 7'. I hope I helped!

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