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2 years ago

What is the discriminant of the quadratic equation

Mathematics

1 answer:

kkurt [141]2 years ago

7 0

The discriminant is b^2 -4ac
a = 1
b = -2
c = 4

discriminant = 4 -4 * 1 * 4 =
4 -16 =
-12
I get MINUS 12 as the answer but that isn't one of the choices.

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2 years ago

Tamara says she used the GCF to factor the expression 21x + 56xy as 7(3x + 8xy). Is she correct? Explain.

coldgirl [10]

Answer:

Tamara incorrectly factored the whole expression.

Step-by-step explanation:

Note that

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Mark in bold all common factors, then GCF(21x,56xy)=7·x=7x.

Thus,

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2 years ago

What is 5/12 times 3 in multiply fractions

katrin [286]

Hey there

5/12 times 3 = 5/4
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The answer is 1 1/4

hope this helps you

4 0

3 years ago

Read 2 more answers

A 25 kg rock , is raised to the top of a hill 10 m high. What is the PE of the rock ?

nexus9112 [7]

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$Potential \: \: Energy =(mass) \times (gravity \: acceleration) \times (height) \\$

_________________________________

If gravity acceleration is 10 :

$PE = 25 \times 10 \times 10$

$PE = 2500$

_________________________________

If gravity acceleration is 9.8 :

$PE = 25 \times 9.8 \times 10$

$PE = 25 \times 98$

$PE = 2450$

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2 years ago

Help me assapppp!!! Pls

mafiozo [28]

Answer:

have you tries adding them together?

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3 years ago