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3 years ago

A stack of 60 identical books at the book store was 135 inches tall.

Mathematics

2 answers:

koban [17]3 years ago

3 0

6.75 inches....................

galben [10]3 years ago

3 0

The answer is A I used a calculator to figure this out.

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PLEASE HELP

katovenus [111]

Answer:

$593.26

Step-by-step explanation:

We know that the price of the laptop is $2500 and each year its resale value decreases by 25%. It means that 100 - 25 = 75% of the value is retained every year for the resale.

So, the resale value for 1st year = $\frac{75}{100} *2500 =$ $1875

for 2nd year = $\frac{75}{100} *1875 =$ $1406.25

for 3rd year = $\frac{75}{100} *1406.25 =$ $1054.7

for 4th year = $\frac{75}{100} *1054.7 =$ $791.01

for 5th year = $\frac{75}{100} *791.01 =$ $593.25

Or we can use the following formula to find its resale value after 5 years:

$2500*(0.75)^5 =$ $593.26

4 0

3 years ago

Really need this todayyyyyy

Bond [772]

Answer:

Q3: x1=2+i, x2=2-i Q4: x1=-3/2+i, x2=-3/2-i

Step-by-step explanation:

$x^{2} - 4x + 5 =0$

( $4$ ± $\sqrt{16 - 4*1*5}$ ) / $2$ = (

x1= 2+i

x2= 2-i

$2x^{2} +6x + 5 =0$

( $-6$ ± $\sqrt{36 - 4*2*5}$ ) / $4$ = (-6 ± $\sqrt{-4}$ )/4= (-3 ± i)/2

x1 = -3/2 +i

x2 = -3/2 -i

7 0

3 years ago

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What is the slope-intercept from equation of the line that passes through (5,7)and(8,22)?

elena55 [62]

y=5X+32

I hope this helps!

6 0

3 years ago

A persons resting heart rate is typically between 60 and 100 beats per minute. Noah looks at his watch, and counts 8 heartbeats

gulaghasi [49]

Its typical because 60 between 100. 8 times 10 seconds equals 80 which is in between so Noah's heart rate is typical.

4 0

3 years ago

Pls help

astra-53 [7]

Answer:

2+i times the square root of 7

4 0

3 years ago

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