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Nadusha1986 [10]
3 years ago
6

Does the equation x2 - 4x + y2 = -3 intersect the y-axis? A) Yes, because the center is on the y-axis. B) No, because the center

is a (2, 0) and the radius is 1. C) No, because the circle is entirely in the first quadrant. Reactivate D) Yes, because the center is at (-2, 0) and the radius is 3. Reactivate
Mathematics
2 answers:
Nataliya [291]3 years ago
6 0

Answer: A

Step-by-step explanation:

Mariana [72]3 years ago
4 0

Answer:

Step-by-step explanation:

B) No, because the center is a (2, 0) and the radius is 1

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Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles have a shell length greater
jeka57 [31]

Answer:

a. 0.1917

b. 0.0914

d. 0.1580

Step-by-step explanation:

(a)

 P^D = \frac{15}{40} = 0.375

 P^E = \frac{11}{60} =0.8133

Mean, \sigma_{P^D-P^E} = P^D-P^E = 0.375 -0.1833 = 0.1917

(b) sample prop ? Show your work and label each value.

Mean,   =  = 0.1917

Standard deviation = \sqrt{\frac{P^D(1-P^D)}{N_D} +\frac{P^E(1-P^E)}{N_E} }

Standard deviation =  \sqrt{\frac{0.375(1-0.375)}{40} +\frac{0.1833(1 - 0.1833)}{60} }

Standard deviation = 0.0914

(c)

Normality condition:

np ≥ 10 and n(1-p) ≥ 10

Both the samples satisfy the normality condition.

(d)

The probability is obtained by calculating the z score,

z = \frac{(P^D-P^E)-(P^d-P^e)}{\sigma_{P^D - P^E}}

z = \frac{0.1917-0.1}{0.0914} = 1.0029

P(z > 1.0029) = 1 - P(z ≤ 1.0029)

The probability is obtained from the z distribution table,

P(Z > 1.0029) = 1 - 0.8420 = 0.1580

3 0
3 years ago
Raju's father is 26 years younger than raju's grandfather and 29 years older than raju. The sum of the ages of all the three is
Musya8 [376]

b 7

c 135

d jsjbsbdhejeujsvevevdvvdhdhdhdvevvevdvdvevvevegehhehehebevevvehdhrhevd

8 0
3 years ago
What is the sum of the first 1,000 consecutive odd numbers?
Leokris [45]
That is an arithmetic sequence of the form:

a(n)=2n-1

Now the sum of an arithmetic sequence is just the average of the first and last terms times the number of terms...

We know the first term is 1, let's find the last term...

a(1000)=2(1000)-1=1999

So the sum of that sequence is:

1000(1999+1)/2

1,000,000  

4 0
3 years ago
Help me with this please
zzz [600]
The answer is C: 3x + 30 = 11x.

Hope my answer helped!! It would really help me if you gave me Brainliest Answer!!
7 0
4 years ago
Read 2 more answers
Question 1 Unsaved
devlian [24]
Either W or X could be the table.

In the "Brown" column, both of these tables have a larger entry for "Green" than they do for "Blue", which would lead to the conclusion the teacher made.
3 0
3 years ago
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