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likoan [24]
3 years ago
12

Please Help!

Mathematics
1 answer:
bekas [8.4K]3 years ago
3 0
Well, usually dominos does 10 slices per box. so, 15 dollars for a whole pizza.
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What situation does –6 most likely represent?
olya-2409 [2.1K]

Answer: Losing 6 yards in a football game

Step-by-step explanation: -6 means to take away 6

and the only word problem to take away 6 is D

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The time spent by a physician with a patient

Step-by-step explanation:

Option C is the answer

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2 years ago
What is -3y(y-8)(2y+1)=0
Marta_Voda [28]

Step-by-step explanation:

(-3y^2+24y)(-6y^2-3y)

open the bracket and collect the like terms

-3y^2-6y^2+24y-3y

-9y^2+21y

7 0
3 years ago
Please help. I don't understand.
tamaranim1 [39]
1st answer - he'd pay $751
2nd answer -
7 0
3 years ago
Consider the equation x2+4x+9=0 in standard form. Which equation shows the coefficients a, b, and c correctly substituted into t
Afina-wow [57]

Answer:

<h2>x = -2+i√5 and  -2i-√5</h2>

Step-by-step explanation:

The general form of a quadratic equation is ax²+bx+c = 0

Given the quadratic equation x²+4x+9=0 in its standard form, on comparing with the general equation we can get the value of the constant a, b and c as shown;

ax² = x²

a = 1

bx = 4x

b = 4

c = 9

The quadratic formula is given as x = -b±√(b²-4ac)/2a

Substituting the constant;

x = -4±√(4²-4(1)(9))/2(1)

x = -4 ±√(16-36)/2

x = -4±√-20/2

x = -4±(√-1*√20)/2

Note that √-1 = i

x = -4±(i√4*5)/2

x = (-4±i2√5)/2

x = -4/2±i2√5/2

x = -2±i√5

The solution to the quadratic equation are  -2+i√5 and  -2i-√5

5 0
3 years ago
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