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iragen [17]
3 years ago
12

Use the quadratic equation x2+8x−4=0 to answer the questions.

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
3 0

Answer:

A: 80 B: The discriminant is positive, which means that the equation has two distinct real number solutions.

Step-by-step explanation:

The discriminant is the part under the square root in the quadratic formula, b^2-4ac. [(8)^2]-[4(1)(-4)] = 64-(-16) = 80.

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There are 25 boxes of paper. each box has 789 pieces of paper. how many pieces of paper are in all?
nika2105 [10]

This is a pretty basic multiplication problem.

If one box has 789 pieces of paper in it and there are 25 boxes, you will simply multiply 789 x 25

789 x 25 = 19,725.

This shows that there are 19,725 pieces of paper in the 25 boxes of paper.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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Can someone please teach me how to add, subtract, multiply and divide negative numbers?
dedylja [7]
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3 0
3 years ago
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Which inequality can be used to represent this problem? (HELP ASAP, IM TIMED)
Nadya [2.5K]

Propane costs $3.50 per hundred pounds,

and there is a $6 monthly delivery fee.  

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So the cost for Propane  = $ 3.5x

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8 0
3 years ago
If a = 3 and b = 2, what is the value of the expression 11 + a - b ?
Vadim26 [7]
Substitute the values of a and b into the expression:
11 + 3 - 2
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Subtract (same justification as above just with subtraction instead):
12
Hope this helps!
4 0
3 years ago
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