2 years ago

True or false? Postulates are statements that are accepted without question or justification

Mathematics

2 answers:

ale4655 [162]2 years ago

6 0

True, as a postulate is the assumption of existence.

umka2103 [35]2 years ago

3 0

Yes, I believe that's true.

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2 × (2,230 + 829) Which of the following is true about the expression above? A. The given expression is 2 more than (2,230 + 829

goblinko [34]

Answer:

B - the expression given is 2 timex as large at (2,230 + 829)

Step-by-step explanation:

Multiply 2 by each set of numbers then add.

2X 2230 = 4460

2x829 = 1658

Add them together

4460+1658 = 6118

3 0

2 years ago

If f(x)=ln(sin(2x)), f''(π/4) is equal to

Licemer1 [7]

Use the chain rule to compute the second derivative:

$f(x)=\ln(\sin(2x))$

The first derivative is

$f'(x)=(\ln(\sin(2x)))'=\dfrac{(\sin(2x))'}{\sin(2x)}=\dfrac{\cos(2x)(2x)'}{\sin(2x)}=\dfrac{2\cos(2x)}{\sin(2x)}$

$f'(x)=2\cot(2x)$

Then the second derivative is

$f''(x)=(2\cot(2x))'=-2\csc^2(2x)(2x)'$

$f''(x)=-4\csc^2(2x)$

Then plug in π/4 for x :

$f''\left(\dfrac\pi4\right)=-4\csc^2\left(\dfrac{2\pi}4\right)=-4$

4 0

2 years ago

Help me please !! I need this ASAP please helpppp

Kobotan [32]

Answer:

Step-by-step explanation:

$y=(2x-3)/5$

$5y=2x-3$

$(5y+3)/2=x$

$(5x+3)/2=y$

$f^{-1}(x)=(5x+3)/2$

8 0

2 years ago

What’s the answer plzzzzzzzz?

maks197457 [2]

Step-by-step explanation:

please forgive me if I have done something wrong there I am in a hurry I have to go ccooking. if there's something wrong there you can tell me I check it out when I come back good luck.

7 0

1 year ago

Read 2 more answers

1. How do I find the slope of (2,4) (4,7)

Goshia [24]

Answer: 3/2

Step-by-step explanation:

Rise over run!!!

Subtract y values, divide that by the subtracted x values.

7-4/4-2= 3/2

4 0

2 years ago