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3 years ago

PLEASE I NEED AN ANSWER ASAP! THANK YOU.

Mathematics

2 answers:

Brrunno [24]3 years ago

8 0

D....the empty weight is 160gr

Kisachek [45]3 years ago

4 0

Answer:

The y-intercept of the line means that the weight of the empty jar is about 160 grams.

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Nadya [2.5K]

Answer: A.

Step-by-step explanation:

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2 years ago

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Prove whether the following are identities 2tanh 1/2x / 1−tanh^2 1/2 x = sinh x

Tanzania [10]

Recall that

$\cosh^2(x) - \sinh^2(x) = 1$

Dividing both sides by cosh²(x) gives

$1 - \tanh^2(x) = \mathrm{sech}^2(x)$

Also, recall the identity

$\sinh(2x) = 2\sinh(x)\cosh(x)$

Then

$\dfrac{2\tanh\left(\frac x2\right)}{1 - \tanh^2\left(\frac x2\right)} = \dfrac{2\tanh\left(\frac x2\right)}{\mathrm{sech}^2\left(\frac x2\right)} \\\\ \dfrac{2\tanh\left(\frac x2\right)}{1 - \tanh^2\left(\frac x2\right)} = 2\tanh\left(\dfrac x2\right)\cosh^2\left(\dfrac x2\right) \\\\ \dfrac{2\tanh\left(\frac x2\right)}{1 - \tanh^2\left(\frac x2\right)} = 2\sinh\left(\dfrac x2\right)\cosh\left(\dfrac x2\right) \\\\\dfrac{2\tanh\left(\frac x2\right)}{1 - \tanh^2\left(\frac x2\right)} = \sinh(x)$

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2 years ago

Find the equation of the line.

grigory [225]

Answer:

y= 3/5x -3

Step-by-step explanation:

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2 years ago

A triangle has a side length of 4in in an area of 18 square inches and a larger similar triangle has a corresponding side length

Harman [31]

Answer:

s1 :s2 = A1 : A2^2

So the factor of the sides is 2. Now you multiply the area by 2 squared.

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2 years ago

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Nady [450]

Answer

the answer is -56

Step-by-step explanation:

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2 years ago