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3 years ago

Find the hcf of 18 and 24

Mathematics

2 answers:

saveliy_v [14]3 years ago

8 0

Answer:

Step-by-step explanation:

The HCF may be found by listing the factors of 18 and 24

factors of 18 : 1, 2, 3, 6, 9, 18

factors of 24 : 1, 2, 3, 4, 6, 8, 12, 24

The common factors are 1, 2, 3, 6

The highest common factor is 6

irinina [24]3 years ago

5 0

Answer:

Step-by-step explanation:

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Points J and K are midpoints of the sides of triangle FGH.

Hitman42 [59]

Answer: 7

Step-by-step explanation:

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3 years ago

A researcher wishes to estimate, with 9090% confidence, the proportion of adults who have high-speed Internet access. Her es

Sunny_sXe [5.5K]

Answer: a) Required minimum sample size= 219

b) Required minimum sample size= 271

Step-by-step explanation:

As per given , we have

Margin of error : E= 5% =0.05

Critical z-value for 90% confidence interval : $z_{\alpha/2}=1.645$

a) Prior estimate of true proportion: p=28%=0.28

Formula to find the sample size :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.28(1-0.28)(\dfrac{1.645}{0.05})^2\\\\=218.213856\approx219$

Required minimum sample size= 219

b) If no estimate of true proportion is given , then we assume p= 0.5

Formula to find the sample size :-

$n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.645}{0.05})^2\\\\=270.6025\approx271$

Required minimum sample size= 271

8 0

3 years ago

PLEASEEEE

Jobisdone [24]

<h3>Answer: 9.4 feet</h3>

Work Shown:

sin(angle) = opposite/hypotenuse

sin(22) = x/25

x = 25*sin(22)

x = 9.3651648353978

x = 9.4

Your calculator needs to be in degree mode. One way to check is to compute sin(30) and you should get 0.5 or 1/2.

3 0

2 years ago

How do i find the value of x on this problem?

zaharov [31]

Answer:

x = 7

Step-by-step explanation:

The proportion is

14/6 = 21/(3x - 12) Cross Multiply

14*(3x - 12) = 6*21 Remove the brackets and combine

42x - 168 = 126 Add 168 to both sides

42x = 126 + 168

42x = 294 Divide by 42

x = 294/42

x = 7

8 0

3 years ago

Find the hcf of 18 and 24​

Find the hcf of 18 and 24