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KatRina [158]
3 years ago
11

If the length of the rectangle is twice the width and the perimeter of the rectangle is 30 cm what is length and width of the re

ctangle
Mathematics
1 answer:
BARSIC [14]3 years ago
7 0
The length of the rectangle is 10 cm and the width of the rectangle is 5 cm because 2(10)+2(5)=30
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PLEASE ANSWER!!!!!! REALLY IMPORTANT
faust18 [17]

<u>Answer-</u>

<em>The height of the prism is</em><em> 6 units</em>

<u>Solution-</u>

As the base of the prism is a hexagon consisting of 2 congruent isosceles trapezoids.

So,

V_{Prism}=Area_{Base}\times Height

And,

Area_{Base}=2\times \text{Area of the trapezoid}

Also,

\text{Area of the trapezoid}=\dfrac{1}{2}\times \text{Height}\times (\text{Sum of two parallel lines})

=\dfrac{1}{2}\times 3\times (5+8)\\\\=\dfrac{39}{2}

Putting all the values,

V_{Prism}=2\times \dfrac{39}{2}\times Height=39\times Height

As the volume is given, so

\Rightarrow 39\times Height=234

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3 years ago
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Paul [167]

Looking up what kinds of coat will help me best for the winter and what is fashionable.

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4 0
3 years ago
F(x)=2x^2-x+1 find the vertex
Galina-37 [17]

The Answer fam is (1/4,7/8)

5 0
3 years ago
Pleassdee need help I'll brainlist ​
NikAS [45]

Answer:

A^2 means a*a

Step-by-step explanation:

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5 0
2 years ago
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What is the sum of a geometric sequence 1, 3, 9, ... if there are 12 terms?
attashe74 [19]
We know that
a1=1
a2=3
a3=9
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a3/a2=9/3----> 3
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number of terms n  is 12

The </span><span>Sum of geometric series is given by the formula
</span>Sum=a1*[1-r<span>^n]/[1-r]
</span>Sum=1*[1-3^12]/[1-3]-----> Sum=[1-3^12]/[1-3]----> [3^12-1]/[3-1]
<span>Sum=531440/2-----> 265720

the answer is
265720



</span>
4 0
3 years ago
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