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3 years ago

Bernie’s estimated that 69% of 242 is 168 is her estimate reasonable

Mathematics

1 answer:

asambeis [7]3 years ago

7 0

Answer:

Yes it is.

Step-by-step explanation:

Best way is to use percentages you know when estimating.

We know 50% is half.

50% of 242 is 121.

So it has to be more than 121.

10% of 242 is 24.2 so add that to 121 and you get 145.2

You are 60% so far. You just need 9% more.

Add another 10% which is 24.2 and you get 169.4, which is over but we used 10% instead of 9% so the estimate is reasonable and close.

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You are an assistant director of the alumni association at a local university. You attend a presentation given by the university

NNADVOKAT [17]

Answer:

(0.102, -0.062)

Step-by-step explanation:

sample size in 2018 = n1 = 216

sample size in 2017 = n2 = 200

number of people who went for another degree in 2018 = x1 = 54

number of people who went for another degree in 2017 = x2 = 46

p1 = x1/n1 = 0.25

p2 = x2/n2 = 0.23

At 95% confidence level, z critical = 1.96

now we have to solve for the confidence interval =

$0.25 -0.23 ± 1.96*\sqrt{((1 - 0.25) * 0.25)/216 + ((1 - 0.23) *0.23/200}$

= 0.02 ± 1.96 * 0.042

= 0.02 + 0.082 = 0.102

= 0.02 - 0.082 = -0.062

There is 95% confidence that there is a difference that lies between - 0.062 and 0.102 on the proportion of students who continued their education in the years, 2017 and 2018.

There is no significant difference between the two.

5 0

3 years ago

The difference between the length and the width of a rectangle is 5 centimeters. What id the length (the longer side) of the rec

Georgia [21]

Answer:

Step-by-step explanation:

106=2(x+x+5)

53=2x+5

48=2x

24=x

24+5=29

3 0

3 years ago

Find the length of AX. Please!!

valentinak56 [21]

Answer:

hope this helps.. look at it this way it should help!!

Step-by-step explanation:

Considered as an ideal camping axe, the Boy’s Axe (also called the ¾ Axe) usually has a length of 28 inches, ¾ of 36 inches being 27 inches or roughly 700 millimeters. Finally, the Scout Axe has an average handle length of 18-20 inches or 450-500 millimeters.

6 0

3 years ago

Question above. (BRAINLY WANTS ME TO MAKE THE QUESTION 20 CHARACTERS LONG)

stepladder [879]

Answer:

10. 32 & 37

11. 3 & 4

(っ◔◡◔)っ ♥ Hope It Helps, Please Consider giving Brainliest ♥

(P.S. if you need an explanation just ask in comments)

7 0

2 years ago

The width of a rectangle is 2 less than twice the length, x. If the perimeter is 44, what is the width?

Butoxors [25]

Take the length as 'x'

Width = 2x - 2

Perimeter = 44 [ Formula = 2(l + w) ]

2 (l + w) = 44

2 (x + 2x - 2) = 44

2 (3x - 2) = 44

6x - 4 = 44

6x = 44 + 4

6x = 48

x = 48/6

x = 8 => length

Width = 2x - 2 = 2(8) - 2 = 14 units.

Hope it helps!

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂

#Jennie (◍•ᴗ•◍)

3 0

2 years ago