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4 years ago

7

Suppose you are looking at a drawing of the net for a rectangular prism and a net for a rectangular pyramid. Explain how you can

match each net with its name.

1 answer:

Ber [7]4 years ago

5 0

The net for the prism will consist of all rectangles whereas the net for the pyramid will contain a number of triangles

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What is 7 29/80 in a decimal

Elina [12.6K]

<span>7 29/80 as a decimal is 7.3625. First, turn it into an improper fraction: to work out the numerator, add the current numerator (29) to the 7 whole 80ths represented by the integer of the mixed number. (7 x 80) + 29 = 589. 589/80 cannot be cancelled down. As a decimal it is 7.3625.</span>

4 0

4 years ago

Tony and Tiffany collect semi-precious stones. At the Rockhound Hut, Tiffany paid $32 for 7 pounds of snowflake obsidian. At The

ivann1987 [24]

Tony got the better deal

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3 years ago

Find the uncertainty in a calculated average speed from the measurements of distance and time. Average speed depends on distance

zzz [600]

Answer:

$\frac{\Delta v}{v}=0.426$

Step-by-step explanation:

you have that the average sped is given by the following formula:

$v(x,t)=\frac{x}{t}$

The uncertainty formula for a division is given by:

$\frac{\Delta v}{v}=\sqrt{(\frac{\Delta x}{x})^2+(\frac{\Delta t}{t})^2}$ (1)

Δv: uncertainty in speed

Δx: uncertainty in the distance = 0.9m

Δt: uncertainty in time = 0.7s

x: distance = 8.1m

t: time = 1.7s

You replace the values of all parameters in the equation (1):

$\frac{\Delta v}{v}=\sqrt{(\frac{0.9}{8.1})^2+(\frac{0.7}{1.7})^2}\\\\\frac{\Delta v}{v}=0.426$

Hence, the relation between the uncertainty in the average velocity is 0.426

4 0

3 years ago

Y varies inversely as x, and y = 50 when x = 10. What is the value ofy when x = 20?<br> 100

Mrrafil [7]

Answer:

25

Step-by-step explanation:

Since y varies inversely with x, the relation between y and x will be:

$y \propto \frac{1}{x}$

Introducing the proportionality constant, we can write:

$y = \frac{k}{x}$

Using the first set of given values of x and y, we get:

$50=\frac{k}{10}\\\\k = 500$

This means, the relation between y and x is:

$y = \frac{500}{x}$

We have to find y if x = 20. Using this value in above equation, we get:

$y=\frac{500}{20} \\\\ y = 25$

Thus y would be 25 if x is 20.

8 0

3 years ago

What is the distance between (-13,9) and (11,2) in a coordinate grid

zlopas [31]

Distance = Square Root ((X2 - X1)^2<span> + (Y2 - Y1)^</span>2<span>)
</span>Distance = Square Root [ (11 --13)^2 + (2 -9)^2 ]Distance = Square Root [ 24^2 + -7^2 ]Distance = Square Root [ 576 + 49 ]Distance = Square Root [ 625 ]Distance = 25
Source:http://www.1728.org/distance.htm

5 0

3 years ago