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Nostrana [21]
3 years ago
14

4x2 + 4x =- 4 Find the solutions to the Quadratic equation.

Mathematics
1 answer:
VashaNatasha [74]3 years ago
7 0

Answer:

x=-3

Step-by-step explanation:

(4)(2) + 4x = -4

                   multiply the 4 and 2

8 + 4x = -4

                   subtract 8 from both sides

4x = -12

                   divide both sides by 4

x = -3

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Answer:

I believe that the owner of the dice is actually not lucky. There are people who practice throwing dice in a controlled way in order to get a specific side of the dice. If he practices his dice throwing a lot, then he would have a much higher chance of winning at a game of dice.

Step-by-step explanation:

Since you said he was lucky, I decided to make an answer saying that he wasn't lucky so you can choose between both of them. Your answer was good as well.

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2 years ago
A laundry basket contains socks in several different colors. black 70 white 26 red 4 What is the probability that a randomly sel
Gnom [1K]

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70/100

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
a baker wants to make 10 batches of cookie. each batch uses 2/3 cup.of sugar. how many cups of sugar will the baker need to make
Alchen [17]

Answer:

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3 0
3 years ago
Rabies is an often-fatal disease typically transmitted through the bite of an infected animal. The state of Florida has been rec
slega [8]

Answer:

a) 3.6

b) 1.897

c)0.0273

d) 0.9727

Step-by-step explanation:

Rabies has a rare occurrence and we can assume that events are independent. So, X the count of rabies cases reported in a given week is a Poisson random variable with μ=3.6.

a)

The mean of a Poisson random variable X is μ.

mean=E(X)=μ=3.6.

b)

The  standard deviation of a Poisson random variable X is √μ.

standard deviation=S.D(X)=√μ=√3.6=1.897.

c)

The probability for Poisson random variable X can be calculated as

P(X=x)=(e^-μ)(μ^x)/x!

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P(no case of rabies)=P(X=0)=0.0273.

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P(at least one case of rabies)=P(X≥1)=1-P(X<1)=1-P(X=0)

P(at least one case of rabies)=1-0.0273=0.9727

8 0
3 years ago
Write the rate as a unit rate:<br> 400 miles in 8 hours
nikdorinn [45]

Answer:

50miles/hour

Step-by-step explanation:

400/8 is 50.

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3 years ago
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