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2 years ago

Write an inequality comparing 3/4 and 2/4.

Mathematics

1 answer:

Furkat [3]2 years ago

7 0

Answer:

3/4 > 2/4

Step-by-step explanation:

3/4 = 0.75

2/4 = 0.5

Therefore, 3/4 > 2/4

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The ratio of the lengths of the two legs of a right triangle is 3:4

Snowcat [4.5K]

Greetings from Brasil...

Check Attachment!!!

According to the statement of the question, we have:

a/b = 3/4

Note that according to the attached figure, b > a, then the correct proportion will be a to 3, as well as b to 4, because b > a and 4 > 3

Isolating a and b:

a = 3b/4

b = 4a/3

From Pythagoras:

h² = a² + b² - as a = 3b/4 and b = 4a/3, so

For Area:

A = b.a/2

as b = 4h/5 and a = 6h/5, so

4 0

1 year ago

How to solve 3sin^2x= cos^2x

DochEvi [55]

I'll try it.
I just went through this twice on scratch paper. The first time was to
see if I could do it, and the second time was because the first result
I got was ridiculous. But I think I got it.

You said 3sin²(x) = cos²(x)

Use this trig identity: sin²(x) = 1 - cos²(x)

 Plug it into the original equation for (x).

 3(1 - cos²(x) ) = cos²(x)

Remove parentheses on the left: 3 - 3cos²(x) = cos²(x)

Add 3cos²(x) to each side: 3 = 4cos²(x)

Divide each side by 4 : 3/4 = cos²(x)

Take the square root of each side: cos(x) = (√3) / 2 .

There it is ... the cosine of the unknown angle.
Now you just go look it up in a book with a table cosines,
or else pinch it through your computer or your calculator,
or else just remember that you've learned that

 cos( 30° ) = (√3) / 2 .

7 0

2 years ago

How you does this you how to fine what equal one

miskamm [114]

7/16 + 3/8 + Blank = 1
7/16 + 6/16 + 3/16 = 1
convert 3/8 to 6/16 then add 7+6 which = 13
that would be 13/16 then figure out that 13+3 =16 so 13/16+3/16= 16/16 or 1

6 0

2 years ago

The length of time a particular smartphone's battery lasts follows an exponential distribution with a mean of ten months. A samp

aev [14]

Answer:

Probability between 7 and 11 is 0.7799

8 0

2 years ago

If two points known on the line AB in the coordinate plane is (7,15) and (18,42), calculate the following..

Ksju [112]

Answer:

Slope = 27/11
AB = 29.15 u

Step-by-step explanation:

Given :-

Two points are given to us .
The points are A(7,15) and B(18,42)

To Find :-

The slope of the line .
The length of line AB .

We can find the slope of the line passing through the points $( x_1,y_1)$ and $( x_2,y_2)$ as ,

$\implies m = \dfrac{ y_2-y_1}{x_2-x_{1}}$

Plug in the respective values ,

$\implies m = \dfrac{ 42-15}{18-7} \\\\\implies \boxed{ m = \dfrac{ 27}{11 }}$

Hence the slope of the line is 27/11 .

$\rule{200}2$

Finding the length of AB :-

We can find the distance between them by using the Distance Formula .

$\implies Distance =\sqrt{ (x_2-x_1)^2+(y_2-y_1)^2} \\\\\implies Distance =\sqrt{ (18-7)^2+(42-15)^2 } \\\\\implies Distance =\sqrt{ 11^2 + 27^2 } \\\\\implies Distance =\sqrt{ 121 + 729 } \\\\\implies Distance = \sqrt{ 850} \\\\\implies \boxed{ Distance = 29.15 \ units }$

Hence the length of AB is 29.15 units .

5 0

2 years ago