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Zanzabum
3 years ago
9

I got the answer 0.007853982 inches sq, but it says it’s not correct, what am I doing wrong?

Mathematics
1 answer:
sesenic [268]3 years ago
7 0

Answer:

Area of pupil = 0.007855 square inch.

Step-by-step explanation:

Given the following data;

Diameter = 0.1 inch

To find the area of the pupil (circle);

Area of circle = π(D/2)²

Area of pupil = 3.142*(0.1/2)²

Area of pupil = 3.142*(0.05)²

Area of pupil = 3.142*0.0025

Area of pupil = 0.007855 square inch.

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A box in the shape of a rectangular prism has a width that is 5 inches greater than the height and a length that is 2 inches gre
aliina [53]

The volume of the rectangular prism can be express in standard polynomial as follows:

x³ + 12x² + 35x

<h3>How to find the volume of a rectangular prism?</h3>

volume of a rectangular prism = lwh

where

  • l = length
  • w = width
  • h = height

Therefore,

let

height = x

width = x + 5

length = x + 5 + 2 = x + 7

Therefore,

volume = x(x + 5)(x + 7)

volume = x(x² + 7x + 5x + 35)

volume = x(x² + 12x + 35)

volume = x³ + 12x² + 35x

learn more on volume here: brainly.com/question/2005063

#SPJ1

7 0
2 years ago
Write the fraction 5 2/5 as a percent.
bixtya [17]

5 2/5 = 5.4 x 100 = 540%

Since 2/5 = .4

7 0
4 years ago
Write the phase "3 times the difference of 5 and y equals 4" as a variable expression:
worty [1.4K]

Answer:

3(5-7)=4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
There are 80 major sources of pollen in state A. These pollen sources are categorized as​ grasses, weeds, and trees. If the numb
Oxana [17]

Answer:

Grasses: 12

Weeds: 29

Trees: 39

Step-by-step explanation:

Let G, W and T represent number of grasses, weeds, and trees that are major pollen sources.

We have been given that there are 80 major sources of pollen in state A. We can represent this information in an equation as:

G+W+T=80...(1)

We are told that the number of weeds is 7 less than thrice the number of​ grasses. We can represent this information in an equation as:

W=3G-7...(2)

We are also told that the number of trees is 3 more than thrice the number of​ grasses. We can represent this information in an equation as:

T=3G+3...(3)

Upon substituting equation (2) and equation (3) in equation (1), we will get:

G+3G-7+3G+3=80

7G-4=80

7G-4+4=80+4

7G=84

\frac{7G}{7}=\frac{84}{7}

G=12

Therefore, there are 12 grasses that are major pollen sources.

Number of weeds that are major pollen sources:

W=3G-7\Rightarrow 3(12)-7=36-7=29

Therefore, there are 29 weeds that are major pollen sources.

Number of trees that are major pollen sources:

T=3G+3\Rightarrow 3(12)+3=36+3=39

Therefore, there are 39 trees that are major pollen sources.

6 0
3 years ago
Value of x is less than 14
nalin [4]

Hey there!

Value of x is less than 14 would look like this:

x < 14

Hope this helps you!

God bless ❤️

xXxGolferGirlxXx

4 0
3 years ago
Read 2 more answers
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