do males spend more time playing online games than females? a random sample of 100 male and females was selected. let muf be the population mean number of hours spent playing online games for females and let mum be the population mean number of hours spent playing online games for males. how should we write the alternative hypothesis?

Step-by-step explanation:

first find the derivative and then substitute x=1

d/dx((x^2 -2)/(x^2 + 1)) = (2*x)/(1+x^2)+(4*x)/(1+(2*x^2)+x^4)+(-2*x^3)/(1+(2*x^2)+x^4)

substitute x=1

check the image above

slope = 1.5

The slope of the line tangent when x = 1 is 1.5.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4  = 9 is an equation.

We have,

y = (x² - 2)/(x² + 1)

y' = [(x² + 1)(2x) - (x² - 2)(2x)] / (x² + 1)²

Put x = 1

dy/dx = [(1² + 1)(2) - (1² - 2)(2)] / (1² + 1)²

dy/dx = (4 + 2)/4

dy/dx = 6/4 = 3/2 = 1.5

Thus,

The slope is 1.5.

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[tex]\\ \tt\hookrightarrow y^2=11.6^2-7.5^2[/tex]

[tex]\\ \tt\hookrightarrow y^2=134.56-56.25[/tex]

[tex]\\ \tt\hookrightarrow y^2=78.3[/tex]

[tex]\\ \boxed{\tt\hookrightarrow y\approx 8.3}[/tex]

[tex]\\ \tt\hookrightarrow w^2=8.3^2+15^2=78.3+225=303.3\implies \boxed{\bf w=17.3}[/tex]

And

[tex]\\ \tt\hookrightarrow z^2=14^2-2.7^2=196-7.29=188.71\implies \boxed{\bf z=13.4}[/tex]

Now

[tex]\\ \tt\hookrightarrow u^2=5.8^2-2.7^2=33.64-7.29=26.35\implies \boxed{\bf u=5.1}[/tex]

but its gotta be wierd

Step-by-step explanation:

... thx for this tho

Answer: 89xy29

Step-by-step explanation:

.-. Dk

Answer:

2

Step-by-step explanation:

I think you cross over 7 to the side of 10 then subtract ,

⅔ ÷3 =2

After you Divide 16 and 2 you're answer will be x=8

and the picture above shows the steps to show your work hope this helps

Answer:

I don't understand what it is asking

Answer:

its 4

Step-by-step explanation:

3/1= 12/x

then we should cross multiply

=3x =12 x 1

x= 12/3

= 4  

Answer:

y=3x+4

Step-by-step explanation:

Answer:

See below for the answer.

Step-by-step explanation:

By the graph and finding the equation of the line y = 218x

All the students read at the same rate 288 words per minute.

Answer:

sure

Step-by-step explanation:

what is the question

Step-by-step explanation:

a. the volume of the larger barrel =

π.r².h = 3.14 × 2² × 5

= 3.14 × 20

= 62.8 cu. ft

b. the volume of the smaller barrel =

3.14 × 2² × 3

= 3.14 × 12

= 37.68 cu. ft

or it can find the volume by using

the subsraction :

100.48 - 62.8 = 37.68 cu. ft

Step-by-step explanation:

two angles that equal 90 degrees are complemterary

two complementerary angles equal 90 degrees

Answer:

It IS a rational number

Step-by-step explanation:

Answer:

Sd:382)(#(23667**8862/(=()-#738+#:$($?

The addition of the first seven terms of the geometric series is 16383.

First term = 3

Second term = 3 × 4 = 12

Third term = 12 × 4 = 48

Fourth term = 48 × 4 = 192

Fifth term = 192 × 4 = 768

Sixth term = 768 × 4 = 3072

Seventh term = 12288

Addition of the terms = 16383

In conclusion, the correct option is 16383.

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Answer:

C

Step-by-step explanation:

Answer:

I believethe answer is 1/2 cup of water.

Step-by-step explanation:

I don't know how to explain it

Answer:

find the value of the inequality on the number line

Step-by-step explanation:

do open circle for greater or less than

do closed circle for equal to

draw line left or right based on greater or less than

Answer:

Step-by-step explanation:find the value of the inequality on the number line

Answer:

The expression that represents the total money Brent will earn is the second option or 15y + 10x because y is the number of lawns he mows and he earns $15 for every lawn he mows and x is the number of cars he washes and he earns $10 for that.

Step-by-step explanation:

Hope this helps. . .<3

Answer:

Step-by-step explanation:

That’s hard it’s looks

Answer:

3. Square ABCD has an area of 144 square units, so its side length is 12. Length DL is 5, so triangle ADL is a 5-12-13 triangle as the Pythagorean Theorem.

Answer:

3d+15

Step-by-step explanation:

You would have to do distributive property. 3*d+3*5=3d+15

5.00Answer:

Step-by-step explanation:

Answer:

One denominator you could use to add the two fractions 3/1 and 8/12 is 12.

Step-by-step explanation:

When adding the fractions 3/1 and 8/12, the first step is to multiply both the numerator and denominator by the same number until you end up with common denominators. Here, the best thing to do is multiply both 3 and 1 by 12 which ends in 36/12; from that point on, you just do the simple math of 36/12 + 8/12.

Answer:

x>−8

Step-by-step explanation:

Step 1: Subtract 7 from both sides.

1/2 x 7+7-7>3-7

1/2 x>-4

Step 2: Multiply both sides by 2.

2*(1/2 x)>(2)*(−4)

x>−8

tell me if im wrong! be safe and hope it helps! :D

Answer:

78

Step-by-step explanation:

I just answered that question and I got a 100 on the test

Answer:

Yes it is linear.

Standard form: x = -8

Step-by-step explanation:

Answer:

hope it helps and u understand

check the steps in picture attached

Two supplementary angles equal 180 degrees:

Subtract the difference:

180-44 = 136

Divide that by 2:

136/2 = 68

One angle is 68 degrees

The other angle is 68 + 44 = 112 degrees

Answer:

You multiply the whole number by the denominator, and add the numerator.

Step-by-step explanation:

1 4/5

1 x 4 = 4

4 + 5 = 9, over 5

We still keep the denominator the same

Answer. 1 4/5 = 9/5