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Ray Of Light [21]
3 years ago
9

If ΔΡQR

Mathematics
1 answer:
frozen [14]3 years ago
6 0

Answer:

If y varies directly as x^3 and y=36 when x=7, find y if x=4? (Round answer to the nearest hundredth) , find y if x=4 x = 4 . (Round off your answer to the nearest hundredth.)

Step-by-step explanation:

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Find the total surface area of cube whose volume is 27000cm^2
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5400 is ur answer .

ans: 5400 is the surface area
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Factor completely: 3x2 + 2x - 1
Alex777 [14]
3x^{2}+2x-1=3x^{2}+3x-x-1= \\  \\ 3x(x+1)-(x+1)=(3x-1)(x+1)

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<em>"Associate with people who are likely to improve you."</em>
4 0
3 years ago
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Evaluate the expression below at x = 5. x/35 + 5x^2
kramer

Answer:

876/7

Step-by-step explanation:

Just plug the number 5 into the equation and solve. Remember your Order of Operations (PEMDAS).

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2 years ago
pls help, i need to write an essay explaining what the difference is between finding the volume and total surface of a shape
Vinil7 [7]

Answer:

The surface area applies to how much space a SOLID objects occupies while volume is  the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains, so volume can be anything.

Step-by-step explanation:

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8 0
3 years ago
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You have a credit card with a balance of $754.43 at a 13.6% APR. You have $300.00 available each month to save or pay down your
pochemuha
 <span>B(n) = A(1 + i)^n - (P/i)[(1 + i)^n - 1] 

where B is the balance after n payments are made, i is the monthly interest rate, P is the monthly payment and A is the initial amount of loan. 

We require B(n) = 0...i.e. balance of 0 after n months. 

so, 0 = A(1 + i)^n - (P/i)[(1 + i)^n - 1] 

Then, with some algebraic juggling we get: 

n = -[log(1 - (Ai/P)]/log(1 + i) 

Now, payment is at the beginning of the month, so A = $754.43 - $150 => $604.43 

Also, i = (13.6/100)/12 => 0.136/12 per month 

i.e. n = -[log(1 - (604.43)(0.136/12)/150)]/log(1 + 0.136/12) 

so, n = 4.15 months...i.e. 4 payments + remainder 

b) Now we have A = $754.43 - $300 = $454.43 so, 

n = -[log(1 - (454.43)(0.136/12)/300)]/log(1 + 0.136/12) 

so, n = 1.54 months...i.e. 1 payment + remainder 
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8 0
3 years ago
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