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2 years ago

What is the discriminant of this equation? 3x2 + 8x = 0

1 answer:

6 0

If the 2 is an exponent, it should be marked as such.
“3x2” means 3x⋅2
“3x^2” means 3x²

3x²+8x = 0
Discriminant = 8²-4(3)(0) = 64

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Yes it does matter which way you subtract

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2 years ago

How many solutions does the linear system below have? -8x+2y=6 and -4x+y=3

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Answer:

Step-by-step explanation:

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2 years ago

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2 years ago

A team is excavating an archeological site. The original plan was to excavate a rectangular area 35 ft long

nikitadnepr [17]

Answer:

Part 1) The length of the new rectangle is $87.5\ ft$

Part 2) The area of the new rectangle is $4,375\ ft^{2}$

Step-by-step explanation:

we know that

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step 1

Find the length of the new rectangle

Let

L-----> the length of the new rectangle

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step 2

Find the area of the new rectangle

we know that

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$A=LW$

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2 years ago

A craft store sells boxes of two different varieties of colored pencils. The table shows the number of boxes sold last month. Wh

vlada-n [284]

Answer:

So the answer is 108.75

Step-by-step explanation:

15 * $4.25 = 63.75

12* $3.75 = 45

63.75 + 45 = 108.75.

Answer:108.75

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2 years ago