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VARVARA [1.3K]
3 years ago
13

What is the perimeter of this rectangle?

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
6 0
38 cm sum of all sides is equal to the perimeter 
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Which solid has six faces, four lateral faces, two bases, eight vertices, and 12 edges?
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Answer:

Rectangular prism

Step-by-step explanation:

The solid that has six faces, four lateral faces, two bases, eight vertices, and 12 edges is the <em>rectangular</em><em> </em><em>prism</em>

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3 years ago
Which graph of ordered pairs shows a proportional relationship?
Zanzabum

Answer:

honestly man im stuck on the same one on edg

Step-by-step explanation:

8 0
3 years ago
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Help me with this question please?
UNO [17]
\bf 3^{n+2}-3^n=8\cdot 3^n\implies \boxed{3^n\cdot 3^2}-3^n=8\cdot 3^n&#10;\\\\\\&#10;\stackrel{common~factor}{3^n}(3^2-1)=8\cdot 3^n\implies 3^2-1=\cfrac{8\cdot \underline{3^n}}{\underline{3^n}}\implies 3^2-1=8&#10;\\\\\\&#10;9-1=8\implies 8=8
6 0
3 years ago
2x+3/4(4x+16)=7 <br> I need help finding x.. I don’t know how to do these problems with fractions :(
KIM [24]

Answer:

x=-1

Step-by-step explanation:

2x+3/4(4x+16)=7

2x+(3x12)=7--->distributive property

2x+3x+12=7

5x+12=7--->addition property

5x=-5--->subtraction peroperty

x= -1---?division property

5 0
2 years ago
A right triangle has legs of lengths 9 cm and 12 cm. calculate the length of the hypotenuse?
just olya [345]
Let the legs of the triangle be a and b, and the hypotenuse c.

Your first instinct might tell you to use the Pythagorean theorem to go about solving this because c= \sqrt{a^{2}+b^{2}}. This works, but it is slow.

The fastest way to solve this is to recognize that the right triangle is a special triangle where the ratio of the sides are 3:4:5. This means that if the legs are 9 and 12, then the hypotenuse is 15 because 3*3 is 9, 3*4 is 12, and 3*5 is 15.
6 0
3 years ago
Read 2 more answers
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