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3 years ago

Which completely describes the polygon?

Mathematics

1 answer:

bogdanovich [222]3 years ago

4 0

option D none of the above

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-1\dfrac{60}{100} + 0.1 + \dfrac{1}{4} =−1 100 60 +0.1+ 4 1

Jlenok [28]

Answer: Your question doesn't make any sense

Step-by-step explanation:

8 0

3 years ago

Sarai is mixing a solution. She pours all the liquid from a full small beaker into a larger beaker. The liquid fills the large b

n200080 [17]

Answer:

2000 ml

Step-by-step explanation:

Given: Sarai pours all the liquid from a full small beaker into a larger beaker.

The liquid fills the large beaker to 15% of its capacity.

The small beaker holds 300 ml.

Lets assume capacity of large beaker to hold be "x".

As given, Sarai pours all the liquid from a full small beaker into a larger beaker

∴ $15\% \times x= 300\ ml$

⇒ $0.15x= 300$

Dividing both side by 0.15

⇒ $x= \frac{300}{0.15}$

∴ $x= 2000\ ml$

Hence, the large beaker can hold 2000 ml of liquid.

3 0

3 years ago

(1+cos2x)/(1-cos2x) = cot^2x

sesenic [268]

We will turn the left side into the right side.

$\dfrac{1 + \cos 2x}{1 - \cos2x} = \cot^2 x$

Use the identity:

$\cos 2x = \cos^2 x - \sin^2 x$

$\dfrac{1 + \cos^2 x - \sin^2 x}{1 - ( \cos^2 x - \sin^2 x)} = \cot^2 x$

$\dfrac{1 - \sin^2 x + \cos^2 x }{1 - \cos^2 x + \sin^2 x} = \cot^2 x$

Now use the identity

$\sin^2 x + \cos^2 x = 1$ solved for sin^2 x and for cos^2 x.

$\dfrac{\cos^2 x + \cos^2 x }{\sin^2 x + \sin^2 x} = \cot^2 x$

$\dfrac{2\cos^2 x}{2\sin^2 x} = \cot^2 x$

$\dfrac{\cos^2 x}{\sin^2 x} = \cot^2 x$

$\cot^2 x = \cot^2 x$

8 0

3 years ago

Use FOIL to explain how to find the product of (a + b)(a − b). Then describe a shortcut that you could use to get this product w

xenn [34]

Answer:

The product of (a+b)(a-b) is $a^2 - b^2$

Step-by-step explanation:

Use FOIL to explain how to find the product of (a + b)(a − b)

FOIL is

Multiply First terms : a*a = a^2

Multiply Outside terms : a* -b = -ab

Multiply Inner terms : b * a= ab

Multiply last terms : b * -b = -b^2

now we combine all the terms

$a^2 -ab+ab - b^2$

combine like terms

$a^2 - b^2$

The product of (a+b)(a-b) is $a^2 - b^2$

Shortcut is we apply an identity

$a^2 - b^2 = (a+b)(a-b)$

8 0

3 years ago

Read 2 more answers

Ron is saving 2/13 of his monthly income of 3978 for a new car. how much money is he setting aside each month for that car?

ArbitrLikvidat [17]

Answer:

$612

Step-by-step explanation:

2/13 of 3978 is 612

4 0

3 years ago