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2 years ago

3

Find the solutions to the equation below check all that apply x^2-4=0

2 answers:

madreJ [45]2 years ago

7 0

Answer:

x = 2 and -2

Step-by-step explanation:

Alinara [238K]2 years ago

6 0

Answer:

x=2

Step-by-step explanation:

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A ball is rolling at 4.80m/s over level ground when it encounters a ramp, which gives it an acceleration of -0.875m/s^2. If the

Yuri [45]

Given that the ball was rolling with an initial velocity of 4.80 m/s, when it encountered the ramp.

Given that the accerelation with which it rolled over the ramp was $-0.875 m/s^2$ and that the ranp is 0.750 m long.

The final velocity of an object with an initial velocity, u, with an accerelation, a, moving through a distance, s is given by

$v^2=u^2+2as$

Thus, the <span>final velocity of the ball when it reaches the top of the ramp is given by

$v^2=(4.80)^2+2(-0.875)(0.750) \\ \\ =23.04-1.3125=21.7275 \\ \\ \Rightarrow v=\sqrt{21.7275}=\bold{4.66 \ m/s}$ </span>

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2 years ago

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Your cell phone plan costs $39.99 per month plus $0.13 for each text message you send or receive. You have at most $44 yo spend

nata0808 [166]

39.99 + 0.13m < = 44
0.13m < = 44 - 39.99
0.13m < = 4.01
m < = 4.01 / 0.13
m < = 30.84......so the most that he can send or receive is 30

6 0

2 years ago

One student from a high school will be selected at random. Let A be the event that the selected student is a student athlete, an

kakasveta [241]

Answer:

0.32

Step-by-step explanation:

P(B|A) = P(A∩B) / P(A)

0.25 = 0.08 / P(A)

P(A) = 0.32

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2 years ago

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The local Toyota dealership pays an average of $9,260 with a standard deviation of $1099 for used car trade-ins. They sell new c

Flauer [41]

Answer:

B i think

Step-by-step explanation:

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2 years ago

When dealing with the number of occurrences of an event over a specified interval of time or space and when the occurrence or no

jeyben [28]

Answer:

POISSON DISTRIBUTION

Step-by-step explanation:

When dealing with the number of occurrences of an event over a specified interval of time or space, the poisson distribution is often useful.

Poisson distribution is applicable if:

The probability of the occurrence of the event is the same for any two intervals of equal length.

The occurrence or nonoccurrence of the event in any interval is independent of the occurrence or nonoccurrence in any other interval.

The probability that two or more events will occur in an interval approaches zero as the interval becomes smaller.

Therefore, the appropriate probability distribution is POISSON PROBABILITY DISTRIBUTION.

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2 years ago