Myra said the number 15 is a prime number because it has two odd facrors 3 and 5. do you agree or disagree with myra

Mathematics

1 answer:

Tema [17]3 years ago

5 0

yes I agree because if u did ur time tables right 3&5 would of been ur odd facrors

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an item that was selling for $72 is reduced to $60 find the percent decrease in price round your answer to the nearest tenth of

lyudmila [28]

The amount of decrease is $12.00 :$72.00 - $60.00 = $12.00

you then divide the amount of decrease by the original price to find the percent decrease:

$12.00 ÷ $72.00 = .166666... = 16.7%

4 0

3 years ago

A square has an area of 196 square centimeters. What is the length of each side?

kozerog [31]

Answer:

The answer is simply 49.

Step-by-step explanation:

196 ÷ 4 is why because their are 4 sides on a square if you divide it by 4 you get the answer 49. You're probably in like 3rd grade or smth this is so easy.

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2 years ago

The height of a tree in feet over x years is modeled by the function f(x). f(x)=301+29e−0.5x which statements are true about the

Karo-lina-s [1.5K]

Given this equation:

$f(x)=301+29^{-0.5x}$

That represents the height of a tree in feet over (x) years. Let's analyze each statement according to figure 1 that shows the graph of this equation.

The tree's maximum height is limited to 30 ft.

As shown in figure below, the tree is not limited, so this statement is false.

The tree is initially 2 ft tall

The tree was planted in x = 0, so evaluating the function for this value, we have:

 $f(0)=301+29^{-0.5(0)}=301+1=302ft$

So, the tree is initially $\boxed{302ft}$ tall.

Therefore this statement is false.

Between the 5th and 7th years, the tree grows approximately 7 ft.

if x = 5 then:

 $f(5)=301+29^{-0.5(5)}=301ft$ 

if x = 7 then:

$f(7)=301+29e^{0.5(7)}=301ft$

So, between the 5th and 7th years the height of the tree remains constant
:
$\Delta=f(7)-f(5)=301-301=0ft$

This is also a false statement.

After growing 15 ft, the tree's rate of growth decreases.

It is reasonable to think that the height of this tree finally will be 301ft. Why? well, if x grows without bound, then the term $29^{-\infty}$ approaches zero.

Therefore this statement is also false.

Conclusion: After being planted this tree won't grow.