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3 years ago

On a final exam, Alex answered 21 out of 25 questions correctly. He

Mathematics

1 answer:

morpeh [17]3 years ago

4 0

Answer:

He needs to answer at least 20 questions correctly.

Step-by-step explanation:

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If a person were to walk around the base of a

alexira [117]

Answer:

They walked about 125.6 meters

Step-by-step explanation:

40 is the diameter and just multiply it by 3.14

8 0

2 years ago

An architect draws a blueprint of a house. He draws the living room on the blueprint as 4.5 in. long by 6 in. wide with a scale

s2008m [1.1K]

Answer:

the answer is 8.5

Step-by-step explanation:

yeet

8 0

3 years ago

Read 2 more answers

Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 m wide by 15.0 m lon

Paladinen [302]

<h3>Answer: Choice A) 212 square meters</h3>

========================================================

Explanation:

14.10 has four sig figs. The 0 at the end is significant. This measurement is accurate to the hundredths place. If the author wrote 14.1, then it would be accurate to the tenths place with three sig figs.

15.0 has three sig figs. The 0 is significant. If they wrote 15 or 15. then we'd be dealing with 2 sig figs instead; however they placed the 0 there to tell the reader "this measurement is accurate to the tenths place"

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Multiply the values given

14.10*15.0 = 211.5

Round that to three sig figs. We pick the smaller sig fig count to round to since we cannot be certain it is accurate to four sig figs. In a sense, we pick the weakest link and use that to determine rounding when it comes to multiplication and division.

This means 211.5 rounds to 212

6 0

3 years ago

Round 0.006772 to 1 significant figure

Monica [59]

Answer:

0.007

Step-by-step explanation:

0's before other numbers are non-significant. Then you just round your number.

Hope that helps

8 0

2 years ago

Read 2 more answers

A group of 5 families at Baileys Middle School sold magazine subscriptions to raise money for the school. $6.00, $7.00, $4.00,

mash [69]

Answer:

The median amount of money raised is $5.00

Step-by-step explanation:

To find the median amount of money raised, we will follow the steps below:

First, arrange the data giving in ascending order. That is

$6.00, $7.00, $4.00, $5.00, $3.00

We will arrange it in ascending order, hence

$3.00, $4.00, $5.00, $6.00, $7.00

The median is the middle number, we will now proceed to take the middle number.

The middle number is $5.00

Therefore, the median amount of money raised is $5.00

6 0

3 years ago