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zysi [14]
3 years ago
7

The lengths of the diagonals of a rhombus are 4x and 8x. What algebraic expression gives the perimeter of the rhombus?

Mathematics
1 answer:
Marizza181 [45]3 years ago
4 0

Answer:

Approximately 17.88x or 8x\sqrt{5}

Step-by-step explanation:

Use pythagorean formula. In a rhombus the diagonals bisect each other and they are perpendicular, so you could have a right triangle with legs of 2x and 4x, the hypoteneuse would then be \sqrt{(2x)^{2} +(4x)^{2} }= \sqrt{4x^{2} +16x^{2}} which is approximately 4.47x. In a rhombus all 4 sides are the same, so multiply that by 4 and you get the perimeter. 4(4.47x) = 17.88x  or if you simplify the radical instead it's 8x\sqrt{5}

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hjlf

Answer:

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4 0
2 years ago
How much simple interest would 1000 earn in 275 days at an interest rate of 4.21%
nikitadnepr [17]
Now, there are 365 (excluding leap years) in a year, so, 275 days is not even a year, but is  275/365 of a year, or 55/73 of a year.

\bf \qquad \textit{Simple Interest Earned}\\\\
I = Prt\qquad 
\begin{cases}
I=\textit{interest earned}\\
P=\textit{original amount deposited}\to& \$1000\\
r=rate\to 4.21\%\to \frac{4.21}{100}\to &0.0421\\
t=years\to \frac{275}{365}\to &\frac{55}{73}
\end{cases}
\\\\\\
I=1000\cdot 0.0421\cdot \cfrac{55}{73}
3 0
2 years ago
21 cans of tomato paste of the same size have weight of 7300 grams. What is the weight of 5 cans.
vesna_86 [32]

Answer:

answer is 347.6

Step-by-step explanation:

21/7300= 347.6

7 0
2 years ago
What fraction of 2 1/2 is 48 minutes <br>​
SIZIF [17.4K]

Answer:

19.2

Step-by-step explanation:

Let x be the missing number

2 1/2x =48

5/2x =48

x=48(2/5)

x=19.2

5 0
2 years ago
Time = 8 years
Sedaia [141]
B)1,131.20 would be the answer. 1010x0.14=141.4x8=B                                                                        
 
7 0
3 years ago
Read 2 more answers
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