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Ilia_Sergeevich [38]
3 years ago
8

Find the perimeter of a ruler that measures 12 inches by 7/8 inch.

Mathematics
2 answers:
Anna007 [38]3 years ago
7 0
I'm pretty sure that the answer is 10.5 I hope this helps
yan [13]3 years ago
7 0
12+12+7/8+7/8
24+7/8+7/8
24+1+6/8
25+3/4
25 3/4 inches
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Please help.
Charra [1.4K]

Answer:

Since we have a 30° - 60° - 90° triangle, we can calculate any side by knowing at least one out of three:

Since the length of the hypotenuse is twice as long as the shorter leg, we have:

The length of the short leg is: 25/2 = 12.5

Since the length of the longer leg is equal to the length of the shorter leg

multiply by square root of 3 we have:

The length of the longer leg is: 12.5 × √3 ≈21.65

=> The perimeter of the triangle is: 25 + 12.5 + 21.65 = 59.15

6 0
3 years ago
Read 2 more answers
Twice a number decreased by eight is sixteen.
Firlakuza [10]
The number is 12

16 plus 8 = 24/ 2= 12
7 0
3 years ago
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plz help whats the answer to this question !!! calculate the mass of a gold bar that is 18.00cm long, 9.21cm wide, and 4.45cm hi
erik [133]

We have to find the mass of the gold bar.

We have gold bar in the shape of a rectangular prism.

The length, width, and the height of the gold bar is 18.00 centimeters, 9.21 centimeters, and 4.45 centimeters respectively.

First of all we will find the volume of the gold bar which is given by the volume of rectangular prism:

Volume of the gold bar = length \times width\times height

Plugging the values in the equation we get,

Volume of the gold bar =18.00 \times 9.21 \times 4.45= 737.721cm^3

Now that we have the volume we can find the mass by using the formula,

Mass= density \times volume

The density of the gold is 19.32 grams per cubic centimeter. Plugging in the values of density and volume we get:

Mass = 19.32\times 737.721=14252.769 grams

So, the mass of the gold bar is 14252.769 grams

7 0
3 years ago
Ok guys my friend is telling me that i am doing this problem wrong 4^4+1/2=256.5 and he is tell me that it is 16.5 am i right or
Alexxx [7]

Simplify 4^4 to 256

256 + 1/2 = 256.5

Simplify 256 + 1/2 to 513/2

513/2 = 256.5

Since both sides equal, there are infinitely many solutions.

3 0
3 years ago
Read 2 more answers
True or false? The hypotenuse is the shortest side of a right angled triangle
kicyunya [14]

Answer:

false

Step-by-step explanation:

its the longest side opposite the 90 degree angle

5 0
3 years ago
Read 2 more answers
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