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3 years ago

11

Sammy has 2 water tanks filled with water.Tank A contains 12 liters.Tank B contains 19 liters more than tank A.find the volume o

f water in Tank B

1 answer:

almond37 [142]3 years ago

5 0

Tank B contains 31 liters of water. The volume of Tank B is 31 liters.

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X^2=4x-15 solve with Quadratic formula

bulgar [2K]

Answer:

$x=2+i\sqrt{11}$

$x=2-i\sqrt{11}$

Step-by-step explanation:

we have

$x^{2} =4x-15$ -------> $x^{2}-4x+15=0$

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-4x+15=0$

so

$a=1\\b=-4\\c=15$

substitute in the formula

$x=\frac{-(-4)(+/-)\sqrt{-4^{2}-4(1)(15)}} {2(1)}$

$x=\frac{4(+/-)\sqrt{16-60}} {2}$

Remember that

$i=\sqrt{-1}$

$x=\frac{4(+/-)\sqrt{-44}} {2}$

$x=\frac{4(+/-)2i\sqrt{11}} {2}$

$x=\frac{4(+)2i\sqrt{11}}{2}=2+i\sqrt{11}$

$x=\frac{4(-)2i\sqrt{11}}{2}=2-i\sqrt{11}$

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3 years ago

Which gauge indicates the total number of miles your car has been driven

olasank [31]

I believe it is the Odometer

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3 years ago

A 5 year lease for a office space states that the annual rent is 62,000 for the first year and will increase by 7% each addition

Jet001 [13]

First year- 62,000
Second year- 7% increased in rent= 66,340
Third year- 7% increased in rent (66,340)= 70,984
Fourth year- 7% increased in rent (70,984)= 75,953
Fifth year- 7% increased in rent (75,953)= 81,270.

Total 5 years lease- 356,547.

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2 years ago

I need help .... can y’all help me

san4es73 [151]

6. C.

7. B.

8. B.

9. B.

10. C

3 0

3 years ago

A square has a perimeter of 76 inches. Complete parts (a)-(c) (a) what is the length of each side? Each side has length of?

RideAnS [48]

a - side of the square

4a - the perimeter of a square

76 in - the perimeter of a square

The equation:

4a = 76 <em>divide both sides by 4</em>

a = 19 in.

<h3>Answer: Each side has length 19 inches.</h3>

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3 years ago