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Ivenika [448]
2 years ago
10

Simplify √ 105 A. 2√ 7 B. √ 42 C. 2√ 3 D. √ 105

Mathematics
1 answer:
IrinaVladis [17]2 years ago
7 0

√105 is written in simplest form already.

The answer would be D. √105

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Convert 330 litres per hour into millilitres per minute (ml/min).
VMariaS [17]
1 litre = 1000 milliliters
1he= 60 min
330 x 1000/60
5500 milliliters/ second
6 0
2 years ago
3. Graph y=-4x² – 2 and its inverse. (1 point)
madam [21]

Function and its inverse was graphed.

<u>Step-by-step explanation:</u>

y = -4x²- 2

To find the inverse function of   y = -4x²- 2 we have to transform the formula to calculate  x in terms of y.

y = -4x²- 2

-4x² = y - 2

x = √(y-2) / -4

Now we can change the letters to follow the convention that  x is the independent variable and  y is the function's value:

y = √(x-2) / -4

Now we have to draw the graph as,

It was side by side that is LHS is the function and the RHS is its inverse.

6 0
3 years ago
I need 5 divisions with decimals
inessss [21]
5\4 4\7 what u mean that u need more
5 0
2 years ago
Read 2 more answers
( 1,-2), gradient = -3​
igor_vitrenko [27]

Answer:

if you are required to find the equation of a straight line use the formula y-y1= m (x-x1)

y+2=-3(x-1)

y+2=-3x+3

y= -3x+3-2

y -3x+1

hope this helps

6 0
3 years ago
Read 2 more answers
2 factors that add to 6 but multiply to 60
hodyreva [135]

Answer:

The short answer is there isn’t.

Start by writing each of these as an expression:

x * y = 60

x + y = 7

Next, solve each for the same variable; in this case, y:

(x * y) / x = 60 / x

.: y = 60 / x

(x + y) - x = 7 - x

.: y = 7 - x

Next, replace y of the second expression to the first

y = 60 / x & y = 7 - x

.: 7 - x = 60 / x

Now, solve for x:

(7 - x) * x = (60 / x) * x

.: x * 7 - x^2 = 60

This is quadratic, so write it in the form of ax2 + bx + x = 0

(-1)x^2 + (7)x + (-60) = 0

.: a = -1, b = 7, c = -60

Finally solve for b:

x = (-b +- sqrt(b^2 - 4*a*c)) / 2a

.: x = (-7 +- sqrt(7^2 - 4*-1*-60)) / (2 * -1)

.: x = (-7 +- sqrt(49 - 240)) / -2

.: x = (-7 +- sqrt(-191)) / -2

The square root of a negative value is imaginary and thus there’s no real answer to this problem.

8 0
2 years ago
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