Answer:
A circle is centered at the point
(−2,5) and has a radius of 7 units.
Which points on the circle have an x-coordinate of 0? (Your answer should be a list of points, such as "(1,1), (2,4)".)
Which points on the circle have a y-coordinate of 2? (Your answer should be a list of points, such as "(1,1), (2,4)".)
Write an equation for the graph of this circle.
Answer:
See belowStep-by-step explanation:
Given:
The radius is 7 and Center is at (- 2, 5).The equation is:
(x - h)² + (y - k)² = r² or(x + 2)² + (y - 5)² = 7² or(x + 2)² + (y - 5)² = 49----------------------------------------------
The points with x = 0:
(0 + 2)² + (y - 5)² = 49(y - 5)² = 49 - 4(y - 5)² = 45y - 5 = ± √45y = 5 ± √45y = 5 ± 3√5The points are:
(0, 5 + 3√5), (0, 5 - 3√5)----------------------------------------------
The points with y = 2:
(x + 2)² + (2 - 5)² = 7²(x + 2)² = 49 - 9(x + 2)² = 40x + 2 = √40x = - 2 ± 2√10The points are:
(- 2 + 2√10, 2), (- 2 - 2√10, 2)Select the quadratic function graphed below.
y=(x+2)2−4
y=2(x+2)2−4
y=4(x+2)2−4
y=(x−2)2−4
y=2(x−2)2−4
y=4(x−2)2−4
[tex]~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{"a"~is~negative}{op ens~\cap}\qquad \stackrel{"a"~is~positive}{op ens~\cup} \end{cases}[/tex]
from the graph we can see that the vertex is at h = -2 and k = - 4, we also know that the parabola runs through the point (-1 , 0)
[tex]\stackrel{vertex}{(\stackrel{h}{-2}~~,~~\stackrel{k}{-4})}\qquad y=a[x-(-2)]^2-4\implies \underline{y=a(x+2)^2-4} \\\\\\ \begin{cases} x=-1\\ y=0 \end{cases}\qquad \implies 0=a(-1+2)^2-4\implies 0=a-4\implies 4=a \\\\[-0.35em] ~\dotfill\\\\ ~\hfill \underline{y=4(x+2)^2-4}~\hfill[/tex]
A gardener wants to fertilize 900 African violets. Each container of fertilizer will supply up to 65 plants. How many containers will she need to do the job?
Answer:
900÷65 = 13.86
Step-by-step explanation:
you'll put the answer how is needed
Based on Priceonomics data describing 49 deaths while taking selfies, it was found that 37 of those deaths were males. Assuming that males and females are equally likely to have selfie deaths, there is a 0.000235 probability of getting 37 or more males. Is the result of 37 males significantly low, significantly high, or neither? Does the result suggest that male selfie deaths are more likely than female selfie deaths?
Using probability concepts, it is found that since the probability of getting 37 or more males is less than 5%, the result of 37 males is significantly low, hence it suggests that male selfie deaths are more likely than female selfie deaths.
When a probability is classified as unusually low?A probability is classified as unusually low when it is of less than 5%.In this problem, there is a 0.000235 probability of getting 37 or more males, which is less than 5% = 0.05, thus the result of 37 males is significantly low, hence it suggests that male selfie deaths are more likely than female selfie deaths.
You can learn more about unusually low probabilities at https://brainly.com/question/15444780
Answer this equation NEED HELP ASAP 30 POINTS
45456346456546546546
Step-by-step explanation:
Which complex number lies in the shaded triangle in this graph?
Answer:
1 - i
Step-by-step explanation:
is y = 4x + 2 parallel or perpendicular
Step-by-step explanation:
pls brainliest thank you
simplify using identities (2a+3b)^2 - (2a-3b)^2
Answer:
24ab
Step-by-step explanation:
Here, the identity A² - B² = (A + B) (A- B) will be used ; A = 2a + 3b, b = 2a - 3b.
=> (2a + 3b + 2a - 3b) (2a + 3b - (2a - 3b))
=> (4a) (2a + 3b - 2a + 3b)
=> (4a) (6b)
=> 24ab
Hope it helps :)
find the perpendicular distance from the point(5,6) to the line -2x+3y+4=0
Step-by-step explanation:
clicking a link in the current visible page
Simplify. Write your answer as a mixed number when possible.
25/35
A bank is offering 2.5% simple interest on a savings account. If you deposit $5000, how much interest will you earn in 4 years?
50,000
$12,500
$125
$500
Answer: $125 interest
Step-by-step explanation:
2.5/100=0.025 r=0.025
time 1 year t=1
p=5000 r=0.025 t=1
I=P*R*T
I=5000*0.025*1
I=125
Simplify.........
[tex] \huge(2 \frac{3}{4} - 1 \frac{1}{3} ) \times \frac{3}{4} [/tex]
Answer:
[tex](\frac{11}{4}-\frac{4}{3})*\frac{3}{4}\\(\frac{33-16}{12})*\frac{3}{4} \\ \frac{17}{12} *\frac{3}{4} \\\frac{51}{48} \\\frac{17}{16}[/tex]
Step-by-step explanation:
Which statement about stratified random sampling is true?
A stratified random sample is a combination of simple random samples selected from each of several strata.
A stratified random sample is formed by selecting one stratum from a simple random sample of the population.
A selection of every 3rd person from an alphabetical list of a population forms a stratified random sample.
A stratified random sample consists of choosing several strata, and each stratum is representative of the entire population
Answer: A stratified random sample consists of choosing several strata, and each stratum is representative of the entire population.
Step-by-step explanation: well i knew this answer by studying in my math class
Answer:
the right answer is A: A stratified random sample is a combination of simple random samples selected from each of several strata
Step-by-step explanation:
Multiply. Write the answer in simplest form. 1/8 x 3/5
Answer:
3/40
Step-by-step explanation:
1/8 * 3/5
1 * 3 = 3
8 * 5 = 40
3/40
How to make a array for 2/24
Answer
9
Step-by-step explanation:
just say pog frog and hope you don't fail.
PLEASE HELP ASAP WORTH 20 POINTS Find the value of x in the triangle.
Answer:
x= 47
Step-by-step explanation:
sum of angles in a triangle are 180
so 180 = x + 85 + 48
=> 180 - 85 - 48 = x
=> x= 47
or x= 180- (85+48)
=> x= 180 - 133
x = 47
Help answer true or false
9 4/8-5 1/8
How to Subtract fractions?
ms. Heinz spent 12 dollars on 30 tokens for the field trip. What was the cost of 12 tokens
Answer:
$4.80 for her 12 tokens. That means that each token was worth 40 cents.
what is 2x8 and 3x5 AND
Answer:
2x8=16
3x5=15
Step-by-step explanation: I hope you have/had an amazing day<3
Select all the correct graphs.
Which graphs are the graphs of even functions?
Answer:because i know
Step-by-step explanation:
the first 2
If the equation y=2x+7 if y=1 what is x?
Answer:
x = -3Question: y=2x+7 given that y = 1
Steps:
1 = 2x + 7
1 - 7 = 2x
-6 = 2x
-6/2 = x
-3 = x
Therefore, x is -3
PLEASE HELP ASAP!!! Whats an equation for a line that passes through points (3,19) and (5,23)
Finding the interpolating polynomial for the function
Answer:
f(x) = x^3 -2x^2 -3x +7
Step-by-step explanation:
Cubic polynomial regression using your favorite tool (graphing calculator, spreadsheet, or web site) will tell you the interpolating polynomial is ...
f(x) = x^3 -2x^2 -3x +7
_____
You can use Lagrange polynomial interpolation. It gives the function as the sum of four factored cubics:
[tex]f(x)=3\cdot\dfrac{(x-2)(x-3)(x-4)}{(1-2)(1-3)(1-4)}+1\cdot\dfrac{(x-1)(x-3)(x-4)}{(2-1)(2-3)(2-4)}+\\\\\text{ }\qquad7\cdot\dfrac{(x-1)(x-2)(x-4)}{(3-1)(3-2)(3-4)}+27\cdot\dfrac{(x-1)(x-2)(x-3)}{(4-1)(4-2)(4-3)}[/tex]
Or, you can write equations for the coefficients a, b, c, d of ...
ax^3 +bx^2 +cx +d = f(x)
These would be ...
a + b + c + d = 3
8a +4b +2c +d = 1
27a +9b +3c +d = 7
64a +16b +4c +d = 27
Your friendly linear equation solver will tell you ...
(a, b, c, d) = (1, -2, -3, 7) . . . matches the equation shown above
The ratio of 6 hours and 48 minutes in simplest form is (I need this quickly)
For a ride on a rental scooter, Deon paid an $8 fee to start the scooter plus 6 cents per minute of the ride. The total bill for Deon's ride was $11.96. For how many minutes did Deon ride the scooter?
Answer:
66 minutes
Step-by-step explanation:
Mary wants to buy a new iPhone for $699. she has $200 saved and plans to save $45 per week. How many weeks will it take Mary to have at least $699 to buy her phone?
I really really don't know
9. Find the area of a Rhombus with diagonals of lengths 8 and 14 cm
Answer:
A=56
Step-by-step explanation:
A= 8*14/2 /56
The expression (y to the power of 20)(y to the power of −5)2 is equivalent to yn. What is the value of n?
200
10
-200
30
Answer: 10
Step-by-step explanation: hope this helps
The bakery also makes loaves of bread. They made more loaves of bread than muffins but fewer loaves of bread than donuts.
Need help on geometry, please.
