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2 years ago

12

You want to put $4,000 in a simple interest account. It has a 2.5% annual interest rate. How long will it take you to earn $500

in interest?

1 answer:

SVEN [57.7K]2 years ago

8 0

Answer:

5 years

Step-by-step explanation:

use the I = Prt simple interest formula

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Mai wants to make an open top box by cutting out corners of a square piece of cardboard and folding up the sides. The cardboard

Bumek [7]

Answer:

$V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

The domain for x is all real numbers greater than zero and less than 5 com

Step-by-step explanation:

<em><u>The question is</u></em>

What is the volume of the open top box as a function of the side length x in cm of the square cutouts?

see the attached figure to better understand the problem

Let

x -----> the side length in cm of the square cutouts

we know that

The volume of the open top box is

$V=LWH$

we have

$L=(10-2x)\ cm$

$W=(10-2x)\ cm$

$H=x)\ cm$

substitute

$V(x)=(10-2x)(10-2x)x\\\\V(x)=(100-40x+4x^{2})x\\\\V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

Find the domain for x

we know that

$(10-2x) > 0\\10> 2x\\ 5 > x\\x < 5\ cm$

so

The domain is the interval (0,5)

The domain is all real numbers greater than zero and less than 5 cm

therefore

The volume of the open top box as a function of the side length x in cm of the square cutouts is

$V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

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2 years ago

The slang height of a right circular cone is 9 meters and the radius of the base is 5 meters. What is the surface area of the co

juin [17]

Answer:

So i say C

Step-by-step explanation:

240 = area

7 0

2 years ago

You have a truck with two gas tanks. The volume of the larger tank is "8x2 + 2x − 1" in3 and the volume of the smaller tank is "

DaniilM [7]

Tank1+tank2=8x^2+2x-1+7x^2-2x+1

Total=15x^2

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3 years ago

Factor each expression.<br> 8.) 8 + 16=

sveta [45]

Answer:

24

Step-by-step explanation:

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2 years ago

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A store sells almonds for $7 per pound, cashews for $10 per pound, and walnuts for $12 per pound. A customer buys 12 pounds of m

shepuryov [24]

Answer:

b

Step-by-step explanation:

I did it on edge 2021

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1 year ago