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2 years ago

Someone help pleasee!

Mathematics

1 answer:

Fofino [41]2 years ago

8 0

-2.2/-2 3/4/2.8/3 1/8

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The area of the square is 27 cm.<br> What is the perimeter of the triangle?

Ede4ka [16]

Answer:24

Step-by-step explanation:3x9=27

3+3=6

9+9=18

18+6=24

7 0

2 years ago

Read 2 more answers

A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to be $28.75 , with a standard

bulgar [2K]

Answer:

Following are the solution to the given choices:

Step-by-step explanation:

Using chebyshev's theorem :

$\to P(|(x-\mu)|\leq k \sigma)\geq 1- \frac{1}{k^2}\\\\here \\ \to \mu=28.75\\\\ \to \sigma=4.44$

In point a)

$\to |(x-\mu)|= |20.17-28.75|=8.58 and \sigma=4.44 \\\\so, \\k= \frac{ |(x-\mu)| }{\sigma}$

$= \frac{8.58}{4.44} \\\\ =1.9 \\\\ =2$

$value= (1- \frac{1}{k^2}) \times 100 \% =75\%$

In point b)

$\to (1- \frac{1}{k^2}) \times 100 \% =84\% \\\\\to (1- \frac{1}{k^2})=0.84 \\\\\to \frac{1}{k^2} =0.16 \\\\\to \frac{1}{k}=0.4\\\\ \to k=2.5 \\\\\to |(x-\mu)| \leq k \sigma \\\\= |(x-\mu)|\leq 2.5 \times 4.44 \\\\ = |(x-\mu)|\leq 1.11 \\\\ = (28.75\pm 11.1) \\\\\to \text{fares lies between}(17.65,39.85)$

In point c)

$\to 99.7 \% \\ lie \ between=28.75 \pm z(.03)\times \sigma \\\\ =28.75\pm 2.97 \times 4.44\\\\=(28.75\pm 13.1)\\\\=(15.65,41.85)\\$

In point d)

using standard normal variate

$x=20.17\\\\ z=-2 \\\\x=37.13\\\\ z=2\\\\\to P(20.17$

8 0

2 years ago

The triangle shown in the graph is transformed by matrix R. Plot the resulting triangle.

DerKrebs [107]

Answer:

I cant Im sorry

Step-by-step explanation:

5 0

2 years ago

-3(-5x+2)+x-3=39 solve for x

Misha Larkins [42]

Answer:

the value of x = 3

Step-by-step explanation:

-3 (-5x+2)+x-3=39

open the bracket by multiply each by -3

15x-6+x-3=39

collect the like terms

16x-9=39

16x=39+9

16x=48

divide both sides by 16

x=3

mark me as brainliest pllyyyyzzz

4 0

2 years ago

Grogg says that if you square a number then square eoot it, he will always end up with the same number he started with. Is this

bekas [8.4K]

Answer:

Yes

Step-by-step explanation:

Given a number, a

Square of number = a²

Square root of number = √a² = a

Assume a = 4

The square of 4 = 4² = 16

The square root of 16 = √16 = 4

Hence, Grogg is correct

3 0

2 years ago