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3 years ago

Which Expression is Equal to 7/√5

Mathematics

1 answer:

otez555 [7]3 years ago

7 0

Answer: $\frac{7\sqrt{5} }{5}$

Step-by-step explanation:

All you need do is to rationalize , that is :

$\frac{7}{\sqrt{5} }$ X $\frac{\sqrt{5} }{\sqrt{5} }$

= $\frac{7\sqrt{5} }{\sqrt{5} . \sqrt{5} }$

= $\frac{7\sqrt{5} }{5}$

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What is 9 times -11 + 17 times 11 in factored form

Rama09 [41]

Answer:

Step-by-step explanation:

(17 * 11 = 187) + (9 * -11 = -99)

187 - 99 = 88

7 0

3 years ago

8, 2, 0, 2, 8, 18<br> What are the next three numbers in the sequence?<br> What is the pattern?

Tom [10]

Answer:

22,40,62

Step-by-step explanation:

0+2=2 2+6=8 8+10=18

2 6 10 14 18 22 four in between

so you will add these numbers each time

18+14=22 22+18=40 40+22=62

4 0

3 years ago

Find an<br> equivalent ratio in simplest terms:<br> 24 : 40

satela [25.4K]

Answer:

An equivalent ratio in simplest term is: 3 : 5

8 0

2 years ago

Read 2 more answers

The weights of newborn baby boys born at a local hospital are believed to have a normal distribution with an average weight of 5

Lisa [10]

Answer: 0.4987

Step-by-step explanation:

Given : The weights of newborn baby boys born at a local hospital are believed to have a normal distribution with

Mean : $\mu=5\text { lbs}$

Standard deviation : $\sigma= 2\text{ lbs}$

Let X be the random variable that represents the weight of randomly selected student .

Z score : $z=\dfrac{x-\mu}{\sigma}$

For x = 5 lbs

$z=\dfrac{5-5}{2}=0$

For x = 11 lbs

$z=\dfrac{11-5}{2}=3$

By using the standard normal distribution table , the probability that the weight of the newborn baby boy will be between 5 lbs and 11 lbs :-

$P(5$

Hence, the probability that the weight of the newborn baby boy will be between 5 lbs and 11 lbs =0.4987

5 0

3 years ago

a rectangle has a length of 8 feet and a width of 6 feet. if its length and width increase bye 50%, what is the new area of the

Alik [6]

Answer:

108ft squared

Step-by-step explanation:

Length increased by 50%: 12ft

Width increased by 50%: 9ft

12x9=108ft squared

I think this is right please confirm before using this answer. Please favorite if right.

7 0

2 years ago