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3 years ago

Inverse cosine of square root of 3 over 2? cos-1(square root of 3/2)

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

8 0

Cos(x°) = (√3)/2
cos⁻¹[(√3)/2] = x°, that means x° = 30°

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What expression is equivalent 19/38

Alex

I am not going to tell you the answer but i can tell you how to find it out. First you have to put 19/38 on a paper. Then multipy the numarator and denomanator by the same number on the top and bottom which is called a whole number. 19/38 times 2/2 or 3/3 or 4/4 or anything. Your answer is equivalent to 19/38

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3 years ago

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Lines a and b are parallel and lines e and f are parallel.

ratelena [41]

Answer:

Step-by-step explanation:

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3 years ago

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The solid surface area is equal to the solid volume. Find the value of x? The measurements of the rectangular prism is 9 inches

Fudgin [204]

Answer:

$x=7.2$

Step-by-step explanation:

Let x represent height of the prism.

We know that volume of rectangular is equal to product of its height, width and length.

$\text{Surface area of rectangular prism}=2(wl+lh+hw)$ , where w, h and l represents width, length and height respectively.

We have been given that the surface area of rectangular prism is equal to the volume of the prism. So we can set an equation as:

$lwh=2(wl+lh+hw)$

We are also told that the measurements of the rectangular prism is 9 inches long and 4 inches wide. Upon substituting these values in above equation, we will get:

$9\cdot 4\cdot x=2(4\cdot 9+9\cdot x+x\cdot 4)$

Let us solve for x.

$36x=2(36+9x+4x)$

$36x=2(36+13x)$

$36x=72+26x$

$36x-26x=72+26x-26x$

$10x=72$

$x=\frac{72}{10}\\\\x=7.2$

Therefore, the value of x is 7.2 inches.

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3 years ago

Describe how the graph of y=x^2 can be transformed to the graph of the given equation y=x^2+13. A) shift the graph of y=x^2 righ

stiks02 [169]

Answer:

Step-by-step explanation:

when a number is added at the end it results in a vertical transformation

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3 years ago

Write a variable expression for each word phrase: <br><br> the product of c and 3

mash [69]

Variables are symbols that are used to represent a number in an expression or equation.

There's one word phrase here, and it's answer is: c*3

If you need help with another one, just let me know! :)

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3 years ago