2 years ago

Any one know how to find the roots of an equation?

1 answer:

4 0

Solutions or Roots of Quadratic Equations. A real number x will be called a solution or a root if it satisfies the equation, meaning . It is easy to see that the roots are exactly the x-intercepts of the quadratic function , that is the intersection between the graph of the quadratic function with the x-axis.

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a young hockey player on frictionless ice shoots a 1 kg hockey puck 150 m/s toward the goal. of the hockey player slides backwar

Dafna11 [192]

By conservation of linear amount of movement we have:
m1v1i + m2v2i = m1v1f + m2v2f
Where,
v1i = v2i = 0 (assuming initial rest)
m1v1f + m2v2f = 0
Substituting the values:
m1 (-3) + (1) (150) = 0
Clearing m1:
m1 = (- (1) * (150)) / (- 3)
m1 = 50 Kg
answer:
his mass is 50 Kg

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3 years ago

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mojhsa [17]

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8 0

3 years ago

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Write each number in standard form. 4. 80,000,000 + 4,000,000 + 100 + 8 the answer

dimaraw [331]

Answer:

84,000,108

Step-by-step explanation:

8 0

3 years ago

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Divide. −1/9÷3/4 −4/27 −1/12 1/12 4/27 PLZZZZ HELP FAST!

ivanzaharov [21]

$\frac{ - 1}{9} \div \frac{3}{4} \\ \\ \frac{ - 1}{9} \times \frac{4}{3} \\ \\ \frac{( - 1) \times 4}{9 \times 3} \\ \\ \frac{ - 4}{27}$

7 0

3 years ago

Kevin is 333 years older than Daniel. Two years ago, Kevin was 444 times as old as Daniel.

tia_tia [17]

Answer: the equations are

k = d + 33

k - 2 = 4(d-2)

Step-by-step explanation:

Let the present age of Kevin be represented by k

Let the present age of Daniel be represented by d

Kevin is 33 years older than Daniel. This means that the expression for their current age is

k = d + 33

Two years ago, Kevin was 4 times as old as Daniel. This means that 2 will be subtracted from their present ages to depict two years ago. Therefore, Two years ago for Daniel will be d-2

Two years ago for Kevin will be k - 2

Remember that Kevin was 4 times as old as Daniel two years ago, it becomes

k - 2 = 4(d-2)

5 0

2 years ago

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