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leonid [27]
2 years ago
5

HELP PLEASE ASAP I WILL GIVE BRAINLYIST PLEASE ASAP

Mathematics
1 answer:
larisa86 [58]2 years ago
6 0

Answer:

Its either b or c

Step-by-step explanation:


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Find the perimeter of the polygon with the given vertices. C(4, -1), D(4,−5), E(2,−3)
Aleksandr [31]

Answer:

8 units

Step-by-step explanation:

find the distance of the lines through coordinates given

distance formula: \sqrt{(x_{1}-x_{2})+(y_{1} -y_{2} )  }

i) CD=\sqrt{(4-4)^2 +(-1+5)^2}

  CD=\sqrt{0+4^2}

  CD=4 units

ii) DE=\sqrt{(4-2)^{2}+(-5+3)^2 }

 DE=\sqrt{(2)^2+(-2)^2}

 DE=\sqrt{8}

 DE= 2 units

iii) ED=\sqrt{(2-4)^2+(-3+1)^2}

   ED=\sqrt{(-2)^2+(-2)^2}

   ED=\sqrt{8}

   ED= 2 units

perimeter of polygon= 2 units+ 2 units+ 4 units

                                  =8 units

4 0
2 years ago
27bc/36cd<br><br> simplify.<br><br> i will mark brainliest
AlekseyPX
Both the numerator and denominator have a 9 and a "b" in common, so we can reduce the fraction to:

3c/4d
5 0
3 years ago
Find the area and perimeter of the triangle ​
LekaFEV [45]

Answer:

Step-by-step explanation:

3 0
3 years ago
Solve the equation 6n -5 + 5n = 15 + n -4 + 8n
timurjin [86]

Answer:

if your solving for n.....

Step-by-step explanation:

n=3

7 0
2 years ago
Read 2 more answers
Suppose the life span of a calculator has a normal distribution with a mean of 60 months and a standard deviation of 8 months. W
rusak2 [61]

Answer:

Probability that the calculator works properly for 74 months or more is 0.04 or 4%.

Step-by-step explanation:

We are given that the life span of a calculator has a normal distribution with a mean of 60 months and a standard deviation of 8 months.

Firstly, Let X = life span of a calculator

The z score probability distribution for is given by;

         Z = \frac{ X - \mu}{\sigma} ~ N(0,1)

where, \mu = population mean = 60 months

            \sigma = standard deviation = 8 months

Probability that the calculator works properly for 74 months or more is given by = P(X \geq 74 months)

     P(X \geq 74) = P( \frac{ X - \mu}{\sigma} \geq \frac{74-60}{8} ) = P(Z \geq 1.75) = 1 - P(Z < 1.75)

                                                   = 1 - 0.95994 = 0.04

Therefore, probability that the calculator works properly for 74 months or more is 0.04 or 4%.

7 0
3 years ago
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