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3 years ago

What is the perimeter of a polygon abcd

Mathematics

2 answers:

Lelu [443]3 years ago

7 0

You need to elaborate more. what is each side marked with? What are the answers to pick from. ECT.

Montano1993 [528]3 years ago

4 0

Answer: 36 on Plato

Step-by-step explanation:

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A treatment is administered to a sample of n = 9 individuals selected from a population with a mean of LaTeX: \muμ = 80 and a st

myrzilka [38]

Answer:

none of the above

Step-by-step explanation:

cohen's d= (Mean of population - mean of sample)/ standard deviation of population

0.5 = (80-mean of sample)/12

Mean of sample= 74

5 0

3 years ago

A scientist has two solution which she labelled, solution A and solution B, each continue salt,she knows that solution A is 65%

Lorico [155]

A = oz of the solution A

b = oz of the solution B

The scientist knows that solution A is 45% salt and solution B is 95% salt. She wants to obtain 80 ounces of a mixture that is 65% salt.

a + b = 80

0.45a + 0.95b = 0.65*80

by solving the above system of equations you'll find····

a = 48 oz

b = 32 oz

~I hope this helped~

If it doesn't make since, I can try to switch up the wording ^^

7 0

3 years ago

Add and simplify: 9/16 + 1/2=?

kozerog [31]

9/16+ 1/2
= 9/16+ (1*8) / (2*8)
= 9/16+ 8/16 (common denominator is 16)
= (9+8)/16
= 17/16
= (16+1)/16
= 16/16+ 1/16
= 1+ 1/16
= 1 1/16

The final answer is 1 1/16~

8 0

3 years ago

Read 2 more answers

2/3 x -9/8 x -4/5 x -1

jolli1 [7]

-151/120x -1 or 1\120 × (-151x -120)

7 0

2 years ago

The weights of adult male birds of a certain species are normally distributed with a mean of 27.5 grams and a standard deviation

Korvikt [17]

Answer:

The z-score of a male bird of this species with a weight of 29.37 grams is 1.7.

Step-by-step explanation:

We are given that the weights of adult male birds of a certain species are normally distributed with a mean of 27.5 grams and a standard deviation of 1.1 grams.

Let X = weights of adult male birds of a certain species

So, X ~ Normal( $\mu=27.5,\sigma^{2} =1.1^{2}$ )

The z score probability distribution for normal distribution is given by;

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

where, $\mu$ = population mean weight = 27.5 grams

$\sigma$ = standard deviation = 1.1 grams

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

SO, the z-score of a male bird of this species with a weight of 29.37 grams is given by;

Z score = $\frac{ X-\mu}{\sigma } }$ = $\frac{ 29.37-27.5}{1.1 } }$

= 1.7

4 0

2 years ago