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docker41 [41]
3 years ago
15

Which statement about the quadratic equation below is true? x2 + 4x + 1 = 0.

Mathematics
1 answer:
scZoUnD [109]3 years ago
5 0

Answer: i think it’s no real solutions

Step-by-step explanation:

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A random sample of size 21 was taken from a normal population. the sample average was 9.87 and the sample sd was 1.17. at the si
Olin [163]
You should be using a hypothesis test - One sample T test.   

The answer is given below.  

Test of mu = 9.7 vs not = 9.7  

The assumed standard deviation = 1.17    

N Mean SE Mean 90% CI Z P  

21 9.87000 0.25531 (9.45004, 10.28996) 0.67 0.506  

since P value is greater than 0.05 we accept the null hypothesis that the population mean equals 9.7
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3 years ago
On Monday, there were 18 chickens and 12 sheeps in a field. there were no other animals in the field. what was the ratio of chic
denis-greek [22]

Answer:

18:12

Step-by-step explanation:

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3 years ago
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In a class 30 of students, 22 have a brother and 25 have a sister. There are 2 students who do not have any siblings. What is th
nignag [31]

Answer:

n(P) = n(S) divide n(s)

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6 0
3 years ago
Which expressions are equivalent to 16? Select each correct expression
photoshop1234 [79]

Answer: Choose 2 to the 4th power, 4 to the 2nd power, and 16 to the power of 1

Step-by-step explanation:

When working with exponents, whatever number is the corner of another number, multiply it by itself. For instance, if you have 2 to the 4th power, multiply 2x2x2x2 which is 16. Also there is 4 to the 2nd power which is 4x4 which is also 16. Lastly you have 16 to the power of 1 and anything multiplied by 1 stays the same.

4 0
3 years ago
PLSSS HELP IF YOU TURLY KNOW THISS
xxMikexx [17]

Answer:

2 1/2

Step-by-step explanation:

Turn both fractions into improper fractions, multiply the whole number by the denominator and add the numerator.

4 3/4

4 * 4 + 3 = 19

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2 1/4

2 * 4 + 1 = 9

9/4

Now since she drank 2 1/4 gallons of juice, subtract 9/4 from 19/4.

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2 1/2

8 0
2 years ago
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