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Y_Kistochka [10]
3 years ago
9

Which graph shows a quadratic function with a discriminant value of 0 ?​

Mathematics
2 answers:
Blizzard [7]3 years ago
6 0

Answer:

D. The very last graph.

Step-by-step explanation:

mojhsa [17]3 years ago
5 0

Answer: d the last graph

Step-by-step explanation: when the discrimint value is equal to zero that means the u shaped thing touches but does not cross the x-axis.

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polly the carrot has learned to say "polly wants a cracker." if she says it every five minutes for two hours and gets a cracker
schepotkina [342]

Answer:

24

Step-by-step explanation:

(60 × 2 ) ÷ 5 = 24.

60 because hour is 60 minutes

× 2 because she says it for 2 hours

÷ 5 because she says it every 5 minutes

3 0
3 years ago
What is the value of x?
Pie

Answer:

i go with 55

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
WhTs What’s the perimeter
Akimi4 [234]
5- 108
6- 464
7- 126
4 0
3 years ago
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Computers from a certain manufacturer have a mean lifetime of 62 months, with a standard deviation of 12 months. The distributio
Goryan [66]

Answer:

Between 38 and 86 months.

Step-by-step explanation:

Chebyshev Theorem

The Chebyshev Theorem can also be applied to non-normal distribution. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by 100(1 - \frac{1}{k^{2}}).

In this question:

Mean of 62, standard deviation of 12.

Between what two lifetimes does Chebyshev's Theorem guarantee that we will find at least approximately 75% of the computers?

Within 2 standard deviations of the mean, so:

62 - 2*12 = 38

62 + 2*12 = 86

Between 38 and 86 months.

6 0
3 years ago
2 is multiplied by the difference of a number and 4. ​
zloy xaker [14]

Answer:

x=3

Step-by-step explanation:

4(x-2)=4.         divide both sides by 4

x-2=1.               add 2 to both sides

x=3

6 0
3 years ago
Read 2 more answers
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