MATHEMATICS HIGH SCHOOL

Alina measured a distance to be 2.18 miles. What is the margin of error?

Answers

Answer 1

Answer:

The margin of error of 2.18 is 2.175 to 2.185.

Alina measured distance = 2.18 miles.

We need to find the margin of error of this measured distance.

What is the Margin of error?

The margin of error is the range of numbers where the original value is located in the middle of the range.

Half the smallestunit of the given number is used to find the marginoferror.

The given rounded number is 2.18.

The smallestunit of this number is 0.01.

0.01 / 2 = 0.005

We construct the margin of error as:

2.18 - 0.005 = 2.175

2.18 + 0.005 = 2.185

Thus, the margin of error of 2.18 is 2.175 to 2.185.

Learn more about the margin of error here:

brainly.com/question/10501147

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Answer 2

Answer:

$\star$ AnswEr :

Remember that, we usually take the error to be half of the smallest unit in a measurement

1. The error in this case = 1/2 x 0.01

=> 0.005

2. The minimum value = 2.18 - 0.005

=> 2.175

3. The maximum value = 2.18 + 0.005

=> 2.185

Therefore, the margin of error is 2.175 miles to 2.185 miles.

Hope it helps! ._.

~TheInsaneGirl

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(1 pt) A delivery truck made 8 stops in one neighborhood. By stop 5, there were 11 packages delivered. How many stops did it take to have 5 packages delivered? A. 12 B. 8 C. 3 D. 2

Answers

First, divide 11/5 because to deliver 11 packages, you go 5 stops. To deliver 5 packages, you go x number of stops. So, 11/5=5/x. Then find a common denominator. So, 11x/5x=25/5x. Then solve the numerators of 11x=25. So, divide 25/11 to isolate x. This gives you 2.27. This means the answer is C) 3 because, although the answer is closer to 2, and by stop 3, there will be more than 5, but at stop 2, it will be less than 5. Hope this helps! :D

PLZZZ HELP 30 POINTSSS!!! Select the correct answer.Which point of intersection is the solution to the system of equations and ?

Answers

Answer:

the answer is A

Step-by-step explanation:

Answer:A.

Step-by-step explanation:

9. Carson draws a scale drawing of a city park and a parking lot. The city 10 points park is in the shape of aright triangle with legs that are 3 inches and 4 inches. The parking lot is in a shape of a rectangle with dimensions of 1.5 inches and 2.5 inches. The scale for the drawing is 1 inch = 40 feet. What are the TWO actual areas for the shapes that are represented?

Answers

Answer:

The answer is below

Step-by-step explanation:

The scale for the drawing is 1 inch = 40 feet.

The right angled triangle has legs of 3 inches and 4 inches. Using the scale, the length of the legs is:

3 inches = 3 inch * 40 feet / inch = 120 feet and 40 inches = 4 inch * 40 feet / inch = 160 feet.

The area of a right angled triangle is half the product of the two legs. Hence:

Area of right angled triangle = 1/2 * 120 feet * 160 feet = 9600 ft²

The rectangle with dimensions of 1.5 inches and 2.5 inches. Using the scale, the length of the sides is:

1.5 inches = 1.5 inch * 40 feet / inch = 60 feet and 2.5 inches = 2.5 inch * 40 feet / inch = 90 feet.

The area of a rectangle is the product of the two sides. Hence:

Area of rectangle = 60 feet * 90 feet = 5400 ft²

The height , H , in feet of an object above the ground is given by h(t)=-16t^2+64t+190 , where t is the time in seconds . What is the height of the object after 2 seconds