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3 years ago

Cos(x) = 2.3 how do I find x?

1 answer:

mote1985 [20]3 years ago

7 0

I don't think you can find x in this case. Cosine can only go as low as -1 and as high as 1. Since 2.3 is more than 1, the answer does not exist

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I need to know instantaneous rate of change at t=2

pashok25 [27]

$g(t)=4-t^2\implies g'(t)=-2t\implies g'(2)=-2\times2=-4$

3 0

3 years ago

If a line has slope a, what is the slope of its reflection across the line y=x?

aleksandrvk [35]

Check the picture below.

notice the reflected gray line on the red one over the y=x line, the slope of either line across the y=x line is simply the other's upside-down.

$\stackrel{\textit{slope of line "a"}}{a\implies \cfrac{a}{1}}\hspace{5em}\stackrel{\textit{slope of its reflection}}{\cfrac{1}{a}}$

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2 years ago

My dad heard this story on the radio. At Duke University, two students had received A’s in chemistry all semester. But on the ni

patriot [66]

Answer:

1/4

Step-by-step explanation:

Possible outcomes

For example let's name the tyre ABCD so the possible answer given by the students are

AA,AB,AC,AD,BA,BB,BC,BD,CA,CB,CC,CD,DA,DB,DC,DD.. Giving16 possible result

probability of giving same answer is

possible same answer is AA,BB,CC,DD. giving 4 possible result

Therefore 4/16 = 1/4

6 0

3 years ago

Please help due today

n200080 [17]

Answer:

3 & 1

6 & 2

9 & 3

12 & 4

Step-by-step explanation:

Hope that helps!

6 0

3 years ago

Read 2 more answers

118.380 round to the nearest hundred

anygoal [31]

118.380 to the nearest hundred is 100
The 1 that I underlined represents the hundreds place of a number, and since the number in the tens place ex.) 212.31 is also a 1, then you round down to just 100.
ex.) round to the nearest hundred: 492.341 The answer to this would be 500, since the number in the tens place is a 9 so you round up to the next hundred.

8 0

3 years ago

Read 2 more answers