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Olenka [21]
3 years ago
12

NEED THE ANSWER ASAP PLEASE

Mathematics
1 answer:
maks197457 [2]3 years ago
3 0

Answer:

x=8V5

Step-by-step explanation:

x^2=20*16

x=V16*V20=4V20=4V4*5=4*V4*V5=8V5

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Which measure is of an angle that is conterminal with a 95 degree angle
timofeeve [1]

Answer: Choice B

95 - 1080n for any integer n

=================================================

Explanation:

Notice how 1080 is a multiple of 360 since 360*3 = 1080. The other values 1450, 780 and 340 are not multiples of 360. For example 1450/360 = 4.02777 approximately. We need a whole number result to show it is a multiple.

Therefore, choice B shows subtracting off a multiple of 360 from the original angle 95. In my opinion, it would be better to write 95+360n or 95-360n to make it more clear we are adding or subtracting multiples of 360.

Choice B will find coterminal angles, but there will be missing gaps. One missing coterminal angle is 95-360 = -265 degrees. So again, 95-360n is a more complete picture. I can see what your teacher is going for though.

8 0
4 years ago
Given that y = (e^x)/x, x > 0, find the range of values of x where y is a decreasing
vodka [1.7K]

Answer:

The interval for which <em>y</em> is a decreasing function of <em>x</em> is:

(0, 1)

Or as an inequality:

0

Step-by-step explanation:

We are given the equation:

\displaystyle y=\frac{e^x}{x}\, ,x>0

And we want to find the range of values <em>x</em> for which <em>y</em> is a decreasing function of <em>x</em>.

<em>y</em> is decreasing whenever <em>y'</em> is negative. Find <em>y'</em> using the Quotient Rule:

\displaystyle y'=\frac{(e^x)'(x)-e^x(x)'}{(x)^2}

Differentiate:

\displaystyle y'=\frac{xe^x-e^x}{x^2}

<em>y</em> is decreasing whenever <em>y'</em> is negative. Thus:

\displaystyle 0>\frac{xe^x-e^x}{x^2}

Multiply both sides by <em>x²</em>. This is always positive so we do not need to change the sign:

xe^x-e^x

Factor:

e^x(x-1)

e<em>ˣ</em> is always positive. So:

x-1

Adding one to both sides produces:

x

Therefore, <em>y</em> is a decreasing function of <em>x</em> when <em>x</em> is less than one (and greater than 0).

In interval notation:

(0, 1)

Or as an inequality:

0

8 0
3 years ago
I need help on #5 on my summer packet my teacher never taught me this and I need help.
Drupady [299]

Answer:

c

Step-by-step explanation:

it can only be 0-9 that is in standard form- one digit then a decimal point

can u pls mark as brainliest?

5 0
3 years ago
Read 2 more answers
Factor the following expression. x² - 10x +9 2 Factor the following expression . x² - 10x +9 2​
deff fn [24]

Answer:

x² - 10x + 9 = (x-9)(x-1)

the factored expression would be (x-9)(x-1)

6 0
2 years ago
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Which inequality represents the graph below
scoray [572]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
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