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2 years ago

If a number is divided in half and the answer is multiplied by 6, how does the final answer compare to the original number?

Mathematics

1 answer:

andrew11 [14]2 years ago

4 0

Answer:

the answer would be 0.

Step-by-step explanation:

this is because if you start with 0 multiply in half you get 0 then times it by 6 you still get 0. so the number sould stay the same. nothing would changed because you cant divide 0 by half. and anything multipled by 0 is still 0.

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Verify: sec^2x+tan^2x=2sec^2x-1

Jlenok [28]

Answer:

see explanation

Step-by-step explanation:

Using the identity

tan²x = sec²x - 1

Consider left side

sec²x + tan²x

= sec²x + sec²x - 1

= 2sec²x - 1

= right side , thus verified

8 0

2 years ago

How to graph 2y-10x=20

aksik [14]

First, put it into slope/intercept form so you can see what you've got.

"Slope/intercept form" is  y = everything else .

So that means you have to take the equation you have and "solve it for 'y' ".

2y - 10x = 20

Add 10x to each side: 2y = 10x + 20

Divide each side by 2 :  y = 5x + 10

There it is.
Now that you have it in that form, you can just look at it and see that the
slope of the line on the graph is 5, and the line crosses the y-axis at 10.

And that's exactly the information you need to graph it. On your graph,
mark a little dot on the y-axis at 10, and draw a line through that dot
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5 0

2 years ago

The highway fuel economy of a 2016 Lexus RX 350 FWD 6-cylinder 3.5-L automatic 5-speed using premium fuel is a normally distribu

Elodia [21]

Answer:

a) Standard error = 0.5

b) 99% Confidence interval: (19.2125,21.7875)

Step-by-step explanation:

We are given the following in the question:

Population mean = 20.50 mpg

Sample standard deviation = 3.00 mpg

Sample size , n = 36

Standard Error =

$=\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{3}{\sqrt{36}} = 0.5$

99% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.01} = \pm 2.575$

$20.50 \pm 2.575(\displaystyle\frac{3}{\sqrt{36}})= 20.50 \pm 1.2875 = (19.2125,21.7875)$

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2 years ago

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victus00 [196]

Answer:

1 $ left over

Step-by-step explanation:

10$

wood wood wood

3$ 3$ 3$

she wood only buy 3 and have 1$ left

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2 years ago

Which role had the lowest median change TIMED TEST

svlad2 [7]

Answer:

22 years old

Step-by-step explanation:

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2 years ago