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Bess [88]
3 years ago
14

bicycle, A company that makes dice (cube), is looking to change The size of the days they produce. The current days have edge le

ngth of 5mm, in the company wants to increase them to 15mm. how will the volume of the day to be affected if this changes made?
Mathematics
1 answer:
stich3 [128]3 years ago
3 0

Answer: If that change is made, the new volume will be 3,375\ mm^3

Step-by-step explanation:

For this exercise it is important to remember that the formula used to calculate the volume of a cube is the following:

V=s^3

Where "s" is the lenght of any edge of the cube.

You know that the current days have edge length of 5 mm.

Then, knowing the formula for calculate the volume of a cube, you get that the current volume of any of those cubes made by the company is:

V_1=(5\ mm)^3\\\\V_1=125\ mm^3

Since they want to increase the length to 15 mm, you can identify that:

s=15\ mm

Therefore, knowing this new edge you can calculate the new volume.

You get that this is:

V_2=(15\ mm)^3\\\\V_2=3,375\ mm^3

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Step-by-step explanation:

Only one

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The new club sticker is in the shape of a triangle. It has a height of 8 inches and a base of 10 inches. The area of the club st
MariettaO [177]

Answer:

Height (h)=8 in

Base(b)=10in

Area (A) of a triangle = 1/2*b*h

A=8in*10in=80in sqr

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The sticker is in triangular form so one has to Area of triangle formula: 1/2x base x height

5 0
3 years ago
The exact same experiment was conducted 14 times. How many times should the results have been similar for them to be valid?A.8
NeTakaya

Answer:

I would have to say C.14

Step-by-step explanation:

Because if you are running the same exact emperiment with the same exact materials everytime then you should get the same outcome.

Hope this helps! : D

4 0
3 years ago
If the expression x-3 has a value of -5,then which of the following represents the value of 3x-9
Angelina_Jolie [31]

Answer:

-15

Step-by-step explanation:

<em>Italics</em> by itself are comments, <em>italics</em> and <u>underlines</u> are helpful rules, bold highlights little facts.

x-3=-5 : since the expression 'x-3' is being assigned the value '-5'

We then isolate or leave the variable 'x' on one side, usually the left-hand side and move all constants (numbers without letters attached such as 3, 4, 5..etc.) and variables (letters such as x, y, a, b..etc.) that do not have 'x', to the right-hand side of the equality symbol (=). This also includes terms such as 5x, -2y, 50z..etc.

<em><u>(Remember that the opposite of multiplication is division and vice versa and the opposite of addition is subtraction and vice versa)</u>.</em>

To do that, we add 3 to both sides of the equation, because the opposite of subtraction is addition <em>(in this case 3 is being subtracted by x, therefore in order to cancel 3 on the left, we do the opposite of the operation).</em> By doing this, we effectively cancel 3 on the left and bring it to the right-hand side. After all, 3 cannot be in two places at once <em>(well not in this equation).</em>

x=-5+3 which is equal to -2.

Hence, x=-2

Now that we know what 'x' is we can work on the other expression: 3x-9

Substitute the value for 'x' (-2 is what we got) into the 'x' in the expression.

3(-2)-9=?

<em><u>(Remember that a positive number multiplied by a negative number will ALWAYS be a negative number. In other words, (+) × (-) = (-). Yes, this also includes a negative number multiplied by a positive number)</u>.</em>

Therefore, 3×(-2) will equal -6.

-6-9=-15

Hence, 3x-9=-15.

To make sure your answer is correct, do the equation backwards. Add 9 to -15 which would then give you -6.

Here's how that looks: 3x-9 (+9)= -15 (+9).

You would then be left with 3x=-6.

If you remembered the rule typed previously, I said in order to isolate 'x' we do the opposite of the operation. 3x means '3' multiplied by 'x', therefore the opposite of multiplication is division:

3x(÷3)=-6(÷3) ----> 3 divided by 3 equals 1. Anything multiplied by 1 will be equal to itself (x*1= x)

<em><u>(An asterisk can also symbolise multiplication).</u></em>

Therefore when 3x is divided by 3, the constants would cancel each other out, 1 would be left looking like this: 1x=... and 1x is the same as x by itself.

-6 divided by 3 is equal to -2 <em><u>(a positive divided by a negative will always be negative and vice versa)</u></em>.

Hence, x=-2.

8 0
3 years ago
PLEASE HEEEEEEEEEEEEEEEEEELP
inna [77]
I’m pretty sure it’s 3 and a 2
8 0
3 years ago
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