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3 years ago

If the "discriminant" of a quadratic equation is -25, then the equation has _________________ solution(s).

Mathematics

1 answer:

slava [35]3 years ago

7 0

no real solutions

The conditions for the discriminant are

• If b² - 4ac > 0 then 2 real and distinct roots

• If b² - 4ac = 0 then 2 real and equal roots

• If b² - 4ac < 0 then no real solutions

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The sum of Jim's weight and Bob's weight is 180 pounds. If you subtract Jim's weight from Bob's weight, you get half of Bob's we

Furkat [3]

Answer:

120 pounds

Step-by-step explanation:

We can use systems of equations to solve this problem. Assuming j is Jim's weight and b is Bob's weight, the equations are:

j + b = 180

b - j = 1/2b

Let's get b - j = 1/2b into standard form (b, then j, then the equal sign, then the constant.)

$b - j = \frac{b}{2}\\\frac{b}{2} - j = 0$

Now we can solve using the process of elimination.

$b + j = 180\\\\\frac{b}{2} - j = 0\\\\b + \frac{b}{2} = 180\\\\b + b \cdot 2 = 180\cdot 2\\3b = 360\\b = 120$

Now we know how much Bob weighs, for fun, let's find Jim's weight by substituting into the equation.

$120 + j = 180\\j = 180-120\\j = 60$

So Bob weighs 120 pounds and Jim weight 60 pounds.

Hope this helped!

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3 years ago

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oee [108]

Answer:

A)3

Step-by-step explanation:

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<h2>★<u>Answer</u></h2>

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3 years ago

A water pitcher holds 3.5 quarts of water. How many liters of water does it hold? A 2.2 liters B) 3.3 liters C)3.7 liters D) 5.6

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C is your answer

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