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OleMash [197]
3 years ago
8

I need help on 13 and 15 that all

Mathematics
1 answer:
mihalych1998 [28]3 years ago
8 0
<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>
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A car weighs 4,000 pounds wich comparison is true
Stella [2.4K]

Answer:

D

Step-by-step explanation:

2000=1 ton so 4000=2tons

4 0
3 years ago
Read 2 more answers
Victor is measuring his bodily dimensions. his neck is 14.72 inches in circumference, and his forearm is 25.81 centimeters long.
Triss [41]

The length of his neck is longer than the length of his forearms by 44.86 %.

<h3>Calculations and Parameters:</h3>

Given:

Length of his neck = 14.72 inches

Length of his forearm = 25.81 cm

We know that:

1 inch = 2.54 cm

So, 14.72 inches = 14.72×2.54

=37.39 cm

So, the Length of his neck becomes 37.39 cm

So, the length of his neck is longer than the length of his forearms.

The difference between them is given by

37.39-25.81

=11.58 cm

so, the Percentage of change would be

11.58/25.81 * 100

=44.86%

Read more about percentages here:

brainly.com/question/7255460

#SPJ4

6 0
2 years ago
Read 2 more answers
Select the expression that has a value of 4
Harrizon [31]

Answer:

The answer is letter D.

Step-by-step explanation:

320/80

=4

4 0
3 years ago
What are some good hair dyes? that won’t damage my hair (comment too)
Mashutka [201]
Artic fox is pretty good!! It also smells really good :) I definitely recommend it
7 0
3 years ago
It took an hour to now a lawn using a mower with 14 inches blade. How long will it take using a mower with 12 inches wide
kozerog [31]

If the time taken by 14 inches wide is one hour then the blade of 12 inches wide will take 1 hour 17 minutes to mow a lawn.

What is width?

The width of something is the measurement of one side of a body. It is generally less than length of that body or shape.

How to calculate time?

We have been given time of 1 hour if blade is 14 inches wide and we have to calculate time taken by 12 inches wide blade:

It will be as 14/12* 1 hour

=14/12

=1.167

=1.17 hour

Hence the time taken by the blade of 12 inches wide will be 1 hour and 17 minutes.

7 0
2 years ago
Read 2 more answers
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