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Ulleksa [173]
3 years ago
11

A rectangular field has an area of 1764 m^2 the width of the field is 13 m more than the length what is the perimeter of the fie

ld

Mathematics
1 answer:
ruslelena [56]3 years ago
6 0

Answer:

hello : here is a solution



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Square root of 5625​
devlian [24]

Answer:

75

Step-by-step explanation:

75 × 75 = 5625

75² = 5625

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3 years ago
Read 2 more answers
Assume that 200 babies are born to 200 couples treated with the XSORT method of gender selection that is claimed to make girls m
JulsSmile [24]

Answer:

a) test statistic = 2.12

b) p-value = 0.017

c) we reject the Null hypothesis

Step-by-step explanation:

Given data :

N = 200

girls (x) = 115 , Boys = 85

p = x / n = 115 / 200 = 0.575

significance level ( ∝ ) = 0.1

<em>aim : test whether the proportion of girls births after the treatment is greater than 50% that occurs without any treatment </em>.

<u>A) Determine the test statistic </u>

H0 : p = 0.5

Ha : p > 0.5

to determine the test statistic we will apply the z distribution at ( ∝ ) = 0.1

Z - test statistic = ( 0.575 - 0.5)  / \sqrt{0.5*0.5 / 200}  = 2.12

<u>b) determine the p-value</u>

The P-value can be determined using the normal standard table

P-value = 1 - p(Z< 2.12 )  =  1 - 0.9830 = 0.017

c) Given that the p value ( 0.017 ) < significance level ( 0.1 )

we will reject the H0 because there is evidence showing that proportion of girls birth is > 50%

3 0
3 years ago
Factor the expression using the GCF 21+15
Svet_ta [14]

Answer:

3(7+5)

Step-by-step explanation:

21+15

Each term is divisible by 3

3*7 +3*5

3(7+5)

6 0
3 years ago
Find the missing side of each triangle. leave your answers in simplest radical form
dedylja [7]
X^2 = 4^2 - (2√3)^2
x^2 = 16 - 12
x^2 = 4
x = 2

answer
x = 2 cm
7 0
3 years ago
Nothing I find in my notes or online doesn't show me how to solve this. I know how to set it up, but brainly ain't letting me su
Anon25 [30]

Answer:

x=8

Step-by-step explanation:

Draw it out.... 11x-4=3x+60

(add 4 to both sides)(subtract 3x from both sides)

8x=64

(divide 8 from 64)

x=8

8 0
2 years ago
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