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3 years ago

Find the perimeter of the isosceles triangle in simplest radical form.

Mathematics

1 answer:

neonofarm [45]3 years ago

4 0

9514 1404 393

Answer:

6 +8√5

Step-by-step explanation:

The leg length can be reduced to simpler form:

3 +√45 = 3 +√(3²·5) = 3 +3√5

The perimeter is the sum of the side lengths, so is ...

(3 +3√5) +(3 +3√5) +(2√5) = 6 +8√5 . . . perimeter

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Ciana wants to buy a shirt that regularly cost 30$.It is on sale for 40$ off. How much is Ciana saving on the shirt?Please help

DerKrebs [107]

Answer:

I think you meant 40% off. If so...

Step-by-step explanation:

First, you have to turn 40 into a decimal - .40.

Then you multiply 30*.40 and get 12.

Subtract 12 from 30 since you are saving 12 dollars.

This means you spend $18 and saved $12.

So, your final answer would be $12.

Hope this helps :)

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3 years ago

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Log (x+2) base 5- log (x) = log (2x-1) base 5 - log (3x-12) base 5

Vlad [161]

Answer:

x ≅ 5.44864209

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

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3 years ago

Suppose that the weights of 5400 registered female Labrador retrievers in the United States are distributed normally with a mean

Maurinko [17]

Answer:

$N= 4543$ Labrador retrievers

Step-by-step explanation:

We know that the mean $\mu$ is:

$\mu = 62.5$

and the standard deviation $\sigma$ is:

$\sigma=2.5$

The probability that a randomly selected Labrador retriever weighs less than 65 pounds is:

$P(X$

We calculate the Z-score for X =65

$Z = \frac{X-\mu}{\sigma}\\\\Z =\frac{65-62.5}{65}=1$

$P(X$

Looking in the table for the standard normal distribution we have to:

$P(Z$ .

Finally the amount N of Labrador retrievers that weigh less than 65 pounds is:

$N = P(X$

$N = 0.8413*5400$

$N= 4543$ Labrador retrievers

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3 years ago

A right rectangular prism is 5 inches long 12 inches wide and 8 inches tall

kolbaska11 [484]

The volume is 480. Hope this helped

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3 years ago

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Can anybody help me with this

Vanyuwa [196]

It's not c so it mite be eather b or a I would say its b

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3 years ago