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4 years ago

Justin's planning to purchase 1 book for $20 each month for 1 year .How much money will he spend on books in that year?

Mathematics

2 answers:

andre [41]4 years ago

4 0

12 months in a year.
$20 a month.

20*12=240

He'd spend 240 dollars.

Usimov [2.4K]4 years ago

3 0

There is 12 months in a year, so you need to multiply 12*20. 12*20=240

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A rectangle’s base is 6 cm longer than its height. The rectangle’s area is 135 cm2. Find this rectangle’s dimensions. You must i

il63 [147K]

Area of a rectangle = length x height

Area = 135

Height = X

Lenght = x +6

135 = x * x+6

Simplify:

135 = x^2 +6x

Subtract 135 from both sides:

x^2 + 6x - 135 = 0

Solve:

2 numbers when added need to equal 6 and when multiplied equal -135

x = 9 and x = -15

The height can't be a negative number so the height is 9

Length = 9 +6 = 15

Height = 9cm, Length = 15 cm

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Travka [436]

Answer:

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Step-by-step explanation:

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Can someone help me for 20 points please? Thanks, make sure it is correct!

zzz [600]

Yes what do you need help with

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3 years ago

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san4es73 [151]

Step-by-step explanation:

Given: $f'(x) = x^2e^{2x^3}$ and $f(0) = 0$

We can solve for f(x) by writing

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Then

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$\displaystyle \:\:\:\:\:\:\:=\frac{1}{6}e^{2x^3} + k$

We know that f(0) = 0 so we can find the value for k:

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3 years ago

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dedylja [7]

Hopefully this helps you out

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4 years ago