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Nitella [24]
3 years ago
11

Use the quadratic formula to find the solutions to the quadratic equation below. 2x^2-5x+5=0

Mathematics
2 answers:
Alik [6]3 years ago
8 0

Answer:

5±i√15  /4

5 plus or minus i radical 15 over 4

Step-by-step explanation:

apex

Harrizon [31]3 years ago
3 0

Answer:

Step-by-step explanation:

So just plug in your numbers!

x = \frac{5±\sqrt{5^{2}-4*2*5 } }{2*2}

Ignore the A -- artifact of typesetting

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Write the equation for the line that passes through (-6, 1) and is perpendicular to
Dahasolnce [82]

Answer

(3,-2)

Explanation step by step

<em>y</em><em>=</em><em> </em><em> </em><em>-</em><em>2</em><em>x</em><em>-</em><em>9</em>

<em> </em><em> </em><em> </em><em>=</em><em> </em><em>-</em><em>2</em><em>(</em><em>-</em><em>6</em><em>,</em><em>1</em><em>)</em><em>-</em><em>9</em>

<em>=</em><em> </em><em>(</em><em>1</em><em>2</em><em>,</em><em>-</em><em>2</em><em>)</em><em>-</em><em>9</em>

<em>=</em><em>(</em><em>3</em><em>,</em><em>-</em><em>2</em><em>)</em>

8 0
3 years ago
A girl standing on a bridge throws a stone vertically downward with an initial velocity of 15.0 m/s into the river below. If the
Arturiano [62]

you do 15.0 x 4.0 and that would give you the answer of 60.

the bridge is 60m above the water.

8 0
3 years ago
Find the area of the parallelogram.
ArbitrLikvidat [17]

Answer:

160 {ft}^{2}

Step-by-step explanation:

Area of parallelogram =base x height

Area=20 x 8=160

Units=

ft {}^{2}

6 0
3 years ago
Read 2 more answers
Doug, a student in this class, knows how to write programs in JAVA. Everyone who knows how to write programs in JAVA can get a h
In-s [12.5K]

Missing Part of Question

Explain which rules of inference are used in the above

Answer:

Universal instantiation, Modus ponens and Existential generalization

Step-by-step explanation:

Splitting the Statement into two, we have

"Doug knows how to write program is Java"

and

"Doug can get a high paying job"

Represent Doug with x. Then the statements is rewritten as

P(x) = "x knows how to write program is Java"

and

Q(x) = "x can get a high paying job"

In logic, A premise is a statement in an argument that provides reason or support for the conclusion.

So, Statement 1 can be written as

1. P(x) ---- Premise

Then, we have

2. Vx(P(x) --> Q(x)) -- Premise. This mean that P(x) for all values in the domain.

The universal instantiation of (2) leads to

3. P(Doug) --> Q(Doug)

The modus ponens of the above gives

4. Q(Doug)

The existential generalisation from above gives

5. ƎxQ(x)

Which means someone in this class can get a high paying job.

PS:

Universal Instantiation is a valid rule of inference from a truth about each member of a class of individuals to the truth about a particular individual of that class; it is represented by VxP(x).

Existential Generalisation is a valid rule of inference that allows one to move from a specific statement, or one instance, to a quantified generalized statement, or existential proposition.

It is represented as ƎxP(x)

4 0
3 years ago
The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code read
stira [4]
The mean of the answer is 20.5 because you add all of the number together and divide by 6 because there's 6 numbers. 
I'm sorry, but I don't know how to do the standard deviation... 
Hope this helped!
4 0
3 years ago
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