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3 years ago

Please I need help with this quiz really need your help

Mathematics

1 answer:

Doss [256]3 years ago

3 0

Answer:

1.) 216 km³

2.) 71.3 m³ would be my best guess

3.) 324 km³

4.) 128 mi³

5.) 165 in³

6.) 60.9 ft³ would be my best guest

Sorry if any of these aren't correct, but have a good day and hope this helped u!

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Isabelle invested $25,000 into an account that earns 3% annual interest compounded quarterly. If she makes no other deposits int

8_murik_8 [283]

Answer: $45451

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1+r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

P = 25000

r = 3% = 3/100 = 0.03

n = 4 because it was compounded 4 times in a year.

t = 20 years

Therefore,

A = 25000(1+0.03/4)^4 × 20

A = 25000(1+0.0075)^80

A = 25000(1.0075)^80

A = $45451

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3 years ago

Find the domain and range

skad [1K]

domain is -3,4

Step-by-step explanation:

5 0

3 years ago

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I need help please, I'm a little confused

Jet001 [13]

They are absolutely right

4 0

3 years ago

How would the function f(x)=|x^2-x-2|

AleksandrR [38]

Answer:

hello :

Step-by-step explanation:

f(x)=|x²-x-2|

f(x) = x²-x-2 if : x²-x-2 ≥ 0

f(x) = - (x²-x-2) if : x²-x-2 ≤ 0

x²-x-2 = ( x+1)(x-2)

sign of : x²-x-2 is :

x²-x-2 ≥ 0 : x≤ -1 or x ≥ 2

x²-x-2 ≤ 0 : -1 ≤ x ≤ 2

4 0

4 years ago

answer fast I will reward 50 points [] are the exponents Use the given information to complete parts I and II. In your final ans

EleoNora [17]

Answer:

see below

Step-by-step explanation:

given;

Planet Earth has an approximate diameter of 1.2742 x 10¹⁰ millimeters.

The sun has a diameter of 1.391 x 10⁶ kilometers.

find:

Part I:

Given that for every one kilometer there are 1,000,000 millimeters, which unit of measurement should be used to best represent the lengths of the sun and Earth's diameters?

Part II:

Approximate how many times greater the sun's diameter is than planet Earth's.

-------------------------------------------------------------------------------------------------------

part I:

the best measurement to represent the lengths of the sun and Earth's diameters is kilometers.

= planet dia. = 1.2742 x 10¹⁰ mm x <u> 1 km </u> = 12,742 km

1,000,000 mm

= sun dia. = 1.391 x 10⁶ km = 1,391 x 10³ km = 1,391,000 km

part II:

the approximate scale dia ratio of earth to sun is = sun dia. over earth's dia.

= <u>1,391,000 km</u>

12,742 km

= 109.17 times

therefore,

109.17 times greater the sun's diameter is than planet Earth's.

8 0

3 years ago

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