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kvv77 [185]
3 years ago
7

The Pyraminx is a Rubik's cube-type toy in the shape of a tetrahedron. The Pyraminx shown below has edges 15\,\text{cm}15cm long

and vertical height h=12.2\,\text{cm}h=12.2cm. The triangle drawn with dashed lines is a right triangle. What is the distance rr? Round your answer to the nearest tenth.
Mathematics
1 answer:
Alex787 [66]3 years ago
3 0

Answer:

8.7

Step-by-step explanation:

15 squared is 225 then you subtract the square of 12.2: 148.84, then after you find that out, you find the square root of 76.16 since that's what the answer of 15 squared minus 12.2 squared, and the answer is 8.7

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Write an improper fraction whose value is between 5 and 10, and whose denominator is 4. Use the / key to type your fraction.
expeople1 [14]
And improper fractions with a denominator of 4 could be..

\frac{32}{4}

This is because 34 over 4 simplifies to 8 

I know it simplifies to 8 because 32 ÷ 4 is 8 

8 is in between 5 and 10 as well 
5∠ 8 ∠10
5 0
3 years ago
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(rx+6x)/y=4 <br> solve for x
Alisiya [41]

The solution for x is equal to x = (4 · y) / (r + 6).

<h3>How to find an explicit solution of an algebraic equation</h3>

In this problem we have an equation formed by three variables (r, x, y) and a constant and we are asked to clear x as a function of r and y. Now we present the entire procedure:

(r · x + 6 · x) / y = 4             Given

(r · x + 6 · x) = 4 · y             Defintion of division / Associative property / Compatibility with multiplication / Existence of multiplicative inverse / Modulative property

x · (r + 6) = 4 · y                  Distributive property

x = (4 · y) / (r + 6)                Compatibility with multiplication / Associative property / Existence of multiplicative inverse / Modulative property / Definition of division / Result

The solution for x is equal to x = (4 · y) / (r + 6).

To learn more on equations: brainly.com/question/10413253

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3 0
1 year ago
Susan's checkbook had a balance of $422.05 on April 1. On April 5, she wrote a check for $106.30 to the auto repair shop. On Apr
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The answer should be $100.75
8 0
2 years ago
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What is the velocity of an object that has a mass of 92 kilograms a momentum of 184 kg*m/s
lisabon 2012 [21]
Momentum =mass x velocity 
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6 0
4 years ago
Arrange the equations in the correct sequence to rewrite the formula for displacement, , to find a. In the formula, d is displac
OverLord2011 [107]

Answer:

2(d-vt)=-at^2

a=2(d-vt)/t^2

at^2=2(d-vt)

Step-by-step explanation:

Arrange the equations in the correct sequence to rewrite the formula for displacement, d = vt—1/2at^2 to find a. In the formula, d is

displacement, v is final velocity, a is acceleration, and t is time.

Given the formula for calculating the displacement of a body as shown below;

d=vt - 1/2at^2

Where,

d = displacement

v = final velocity

a = acceleration

t = time

To make acceleration(a), the subject of the formula

Subtract vt from both sides of the equation

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d - vt= -1/2at^2

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Divide both sides by t^2

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2(d - vt) / t^2 = -a

a= -2(d - vt) / t^2

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2(vt-d)=at^2

4 0
3 years ago
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