3 years ago

10 and 11 pleaseeee extra points will be added

Mathematics

2 answers:

irakobra [83]3 years ago

7 0

19 pounds and 1 ounces Question 10

1 Dollar for the candy Bar Question 11

kodGreya [7K]3 years ago

3 0

10. Yes because the witch weighs 3,200 ounces and she can hold 4,000 ounces

11. The price of a candy bar is $1

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Zoey found that box of dog food was left in the pantry. She shared this food equally among her 4 dogs. What fraction of the full

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4 dogs, one box. each dog gets one fourth of the box

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3 years ago

Read 2 more answers

Find the solution of y = -x - 3 for x = -2.

Neko [114]

Answer:

(-2,-1)

Step-by-step explanation:

y = -x - 3

you replace the x with the -2

y = -(-2) - 3

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y=-1

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2 years ago

3. What are the roots of the polynomial y = x³ - 8?

zzz [600]

Step-by-step explanation:

x^3 is a perfect cube, 8 is a perfect cube, so we use difference of cubes.

${a}^{3} - {b}^{3} = (a - b)( {a}^{2} + ab + {b}^{2} )$

Cube root of x^3 is x.

Cube root of 8 is 2

a=x

b= 2.

$(x - 2)( {x}^{2} - 2x + 4)$

Set these equations equal to zero

$x - 2 = 0$

$x = 2$

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

If we do the discriminant, we get a negative answer so we would have two imaginary solutions,

Thus the only real root is 2.

If you want imaginary solutions, apply the quadratic formula.

$1 + i \sqrt{ 3 }$

and

$1 - i \sqrt{3}$

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1 year ago

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ddd [48]

Answer:

Step-by-step explanation:

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3 years ago

Mark got 54 out of 66 in his maths test how many did he get wrong. Give your answer in its simplest form

alex41 [277]

Answer:

9/11 I think!

Step-by-step explanation:

54/66= 9/11

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2 years ago