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3 years ago

13

a 1 liter jar is filled with watr to the top. a rock is then dropped in the jar and 400 ml of water is displaced. what is the vo

lume of thre rock

1 answer:

Bezzdna [24]3 years ago

4 0

It is a 600ml if its wrong remeber i tried my best

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In February of 2014, gas was about $3.37 per gallon. In February 2015, gas was about 2.25 per gallon. What is the percent decrea

Sveta_85 [38]

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2 years ago

The sum of 8x2 -x+4 and x-5 is

Leokris [45]

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3 years ago

Msty and yesenia have a group of base ten blocks. misty had six more block than yesenia. yesenias blocks represent 17. together

Inessa05 [86]

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4 0

3 years ago

Simplify cos^2 A/1+sin A

Stels [109]

Answer:

$\displaystyle \frac{\cos^2(A)}{1+\sin(A)}=1-\sin(A)$

Step-by-step explanation:

We want to simplify:

$\displaystyle \frac{\cos^2(A)}{1+\sin(A)}$

Recall the Pythagorean Identity:

$\sin^2(A)+\cos^2(A)=1$

So:

$\cos^2(A)=1-\sin^2(A)$

Substitute:

$\displaystyle =\frac{1-\sin^2(A)}{1+\sin(A)}$

Factor. We can use the difference of two squares pattern:

$\displaystyle =\frac{\left(1-\sin(A))(1+\sin(A))}{1+\sin(A)}$

Cancel. Hence:

$\displaystyle \frac{\cos^2(A)}{1+\sin(A)}=1-\sin(A)$

7 0

2 years ago

Which expression is equivalent to 4(x-3) ?

Lunna [17]

Answer:

To find the answer you just have to solve 4(x-3)

Step-by-step explanation:

4(x-3)=4x-12

So B or 4x-12 is correct.

5 0

3 years ago