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VikaD
1 month ago
14

Which of the following circles have their centers on the x-axis? Check all that apply. A.(x - 0)2 + (y - 5)2 = 49 B.(x - 0)2 + (

y - 0)2 = 25 C.(x - 4)2 + (y - 0)2 = 22 D.(x + 1)2 + (y - 7)2 = 16
Mathematics
2 answers:
Svet_ta [12.7K]1 month ago
4 0

The correct options are B and C

Zina [12.3K]1 month ago
3 0
For circles whose centers lie on the x-axis, the y-coordinate must equal zero. Given the standard equation of a circle as (x-h)^2 + (y-k)^2 = r^2, the equations that comply with this criterion are B.(x - 0)2 + (y - 0)2 = 25 and C.(x - 4)2 + <span>(y - 0)2 = 22</span>
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A city determines that a planned community must have at least 4 acres of developed and open space, and the difference
lawyer [12517]

Answer:

The attached figure illustrates the graph.

Step-by-step explanation:

Let

x represents the count of open acres

y depicts the total developed acres

It is established that

x+y \geq 4 corresponds to inequality A

x\leq 1 corresponds to inequality B

Keep in mind that

if the open acres, x, is limited to a maximum of 1, then it follows that x must adhere to ≤ 1

The system of equations can be solved by graphing

The solution is found in the shaded area (Note Negative acreage counts are not permissible)

The attached figure serves as a visual representation.

3 0
1 month ago
Suppose that the number of drivers who travel between a particular origin and destination during a designated time period has a
zzz [12365]

Answer:

Step-by-step explanation:

It has been established that the count of drivers traveling between a specific origin and destination in a certain time frame follows a Poisson distribution with a mean μ = 20 (as indicated in the article "Dynamic Ride Sharing: Theory and Practice"†).

a) P(X\leq 15) = 0.1565=0.157

b) P(X>26) =1-F(26)\\= 1-0.9221\\=0.0779=0.078

c) P(15\leq x\leq 26)\\=F(26)-F(14)\\=0.9221-0.1049\\=0.8172=0.817

d) 2 standard deviations = 2(20) = 40

Thus, this means the range for 2 standard deviations is

20-40, 20+40

which equates to (0,60)

P(0

5 0
1 month ago
A random sample of size n1 = 16 is selected from a normal population with a mean of 75 and standard deviation of 8. A second ran
PIT_PIT [12445]
The solution is found in the image attached below.
4 0
14 days ago
A periscope is 5 feet above the surface of the ocean. Through it can be seen a ship that rises to 50 feet above the water. To th
PIT_PIT [12445]

The maximum distance visible on Earth is calculated using the formula d=\sqrt{8,000h_1} + \sqrt{8,000h_2}

h_1= your initial height and h_2= your secondary height

In this case, h_1=5 represents the height of the periscope and h_2=50 denotes the height of the ship, leading us to a distance of 832.45553203368 feet. However, rounding to the nearest mile yields the answer as 11^a^0

If there are any discrepancies, please inform me and I will recalculate!

5 0
1 month ago
Which expression is equivalent to (10x)^-3?
Inessa [12570]
(10x)^(-3)
= 1/[(10x)^3]
= 1/[10^3 * x^3]
= 1/(1000x^3)

The final result is 1/(1000x^3), and none of the given choices seem correct. (Option C would be correct if it used round brackets.)

Hope this helps~
4 0
12 days ago
Read 2 more answers
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