What’s the correct answer for this?

Answers

Answer 1

Answer: Option A
Center: (3,-2)
Radius: 6

Rewrite in standard form to find the center (h,k) and radius r.

Answer 2

im pretty sure its option A. :)

Related Questions

After each charging, a battery is able to hold only 96% of the charge from the previous charging. The battery was used for 10 hours on its first charge before it had to be recharged. What is the total number of hours the battery can be used over its lifetime?

Answers

Answer:

250 hours

Step-by-step explanation:

The first charge is 10 hours, the second charge is 10(0.96) hours, and so on -- the total of these two is 10+10(0.96) and we need to keep adding our battery usage up until there is no more battery. The third one is 10(0.96)*(0.96), or 10(0.96)².

This can be seen as a geometric series, with 10 as the first tern, or a, and 0.96 as the common ratio, or r. The sum of this is

[tex]a\frac{1-r^{n}}{1-r}[/tex], with n being the number of terms. Since 0.96 to the power of n never actually reaches 0 no matter how high n goes if the number is not infinite, we can say n is infinity. As r^n is really close to 0 when n equals infinity (so close that, for our purposes in this equation, we can just assume it's 0), our equation is then

[tex]10\frac{1}{0.04} =10*25=250[/tex]

75 - 4 × (4 - 2)3

AHHH HELP!

Answers

Answer:

75−4(4−2)^3

=43

The pyramid shown is cut into two pieces by slicing vertically from point P to the square base TVWX. This cuts the square base into two equal-sized rectangles. Which describes the cross-section of the square pyramid with this cut?

Answers

Answer:

hty

Step-by-step explanation:

Answer:

a triangle

Step-by-step explanation:

if you cut the shape in half, it would be a triangle but at an angle.

hope this helps!

Simplify 8X +7 - 2X -4

Answers

Answer:

6x + 3

Step-by-step explanation:

8x - 2x + 7 -4

Look at the attached picture

Hope it will be helpful to you..

Have a great day..

(◍•ᴗ•◍)

Mr. Wilson wants to build a square roof for his square deck in the back yard.
The roof will be 12 feet long on each side. He uses the formula (A = s) to
find the area of the roof. What will be the area of the square roof on Mr.
Wilson's deck? (give only the number value of your answer) *

Answers

Answer:

The area of the square roof is 144 square feet.

Step-by-step explanation:

Givens

He wants to build a square roof.The roof will be 12 feet long.

We know that the area of a square is

[tex]A=s^{2}[/tex]

Where [tex]s=12 \ ft[/tex], according to the problem.

Replacing this value, we have

[tex]A=(12 \ ft)^{2} =144 \ ft^{2}[/tex]

Therefore, the area of the square roof is 144 square feet.

Answer: the area of the roof is 144 feet squared for each side (up and down), adding to a total of 288 ft^2

Step-by-step explanation:

If the roof is a square with a side lenght L = 12 feet, then we use the fact that the area of a square is equal to the square of the side lenght of the square, this is:

A = L^2 = (12 ft)^2 = 144 ft^2

Now, Mr. wilson uses the equation A = s, this is because the roof has 2 surfaces, one up and one bottom, then the total area is 2 times the value that we find earlier:

2*144 ft^2 = 288 ft^2

Sammy the school custodian is having a debate with Marci the museum curator. Sammy contends that the school is larger than the museum in terms of area. Marci contends the opposite.

To settle their debate, they find satellite images of both buildings and juxtapose them on a single coordinate grid (shown below).

The area of the school is

\text{m}^2m

2

start text, m, end text, squared.

Round the final answer to the nearest square meter. Do not round intermediate calculations.

The area of the museum is

\text{m}^2m

2

start text, m, end text, squared.

Round the final answer to the nearest square meter. Do not round intermediate calculations.

Who should win the debate?

Choose 1 answer:

Choose 1 answer:

(Choice A)

A

Sammy

(Choice B)

B

Marci

Answers

Answer:

2000 m²2827 m²B. Marci

Step-by-step explanation:

It is convenient to compute the areas in terms of grid squares. Then those results can be converted to square meters by multiplying by the area of a grid square: (10 m)² = 100 m².

(a) The area of the school is the product of its side dimensions. The short side is (in terms of grid squares) ...

W = √(1²+3²) = √10

The long side is ...

L = √(2²+6²) = √40

Then the area is ...

A = LW = (√40)(√10) = √400 = 20

The area of the school is 20 grid squares = 2000 m² . . . . . where s = 10 m

(b) The area of the museum is given by the formula ...

A = πr² = π(3)² = 9π grid squares = 2827 m²

The area of the museum is 2827 m².

(c) Marci says the museum has a larger area than the school. She is correct.

Marci should win the debate.

Out of 120 students at a pep rally 15 did not wear green. What percent of students at the rally did wear green

Answers

Answer:

87.5%

Step-by-step explanation:

First we find the number of students that did wear green which is 120-15=105. Then we need to find what percentage of these students who did wear green so we divide 105 by 120 which is .875. To find this number in percent form, we multiply this number by 100 which gives us 87.5%.

Answer:

87.5%

Step-by-step explanation:

Hope this helps have a wonderful day

Farmer Grainger's square plot yields 350
bushels of grain. To Increase the yield,
Grainger invests in a circular sprinkler pivot to
irrigate a square plot of land. When he places
the sprinkler at the center of the field and
stretches the arm to half the field's length, he
estimates that the sprinkler will triple the yield
over the irrigated circular area, even though
some land will not be irrigated.

Answers

Answer:

a) The yield for the circular area is the triple of the original yield so it is 1,050 bushels.

Average yield for the square plot= 899 bushels.

b) The ratio of irrigated area to the total area of the square plot is the same if we put the sprinkler in the center (with half side as the ratio) or in the corner (with ratio of the side of the square).

Step-by-step explanation:

The arm of the sprinkler goes half the length of the square plot, so the area irrigated is the circumscribed circle. See the picture attached (irrigated area).

The yield will triple in the irrigated area and the same as before in the non-irrigated area. The irrigated area is the area of the circle with radius equal to half the side of the square.

[tex]Y_c=3Y_0=3\cdot350=1,050[/tex]

The non-irrigated area is the area of the square less the area of the circle.

We can calculate the yield as:

[tex]Y=\dfrac{(3Y_o)\cdot A_c}{A_s}+\dfrac{Y_0(A_s-A_c)}{A_s}[/tex]

where Y0: original yield (350 bushels), Ac: area of the circle, and As: area of the square.

The ratio between the area of the circle and the area of the square is:

[tex]\dfrac{A_c}{A_s}=\dfrac{\pi r^2}{l^2}\\\\\\r=l/2\\\\\\\dfrac{A_c}{A_s}=\dfrac{\pi (l/2)^2}{l^2}=\dfrac{\pi l^2}{4l^2}=\dfrac{\pi}{4}\approx0.78[/tex]

We can now solve for the yield:

[tex]Y=\dfrac{(3Y_o)\cdot A_c}{A_s}+\dfrac{Y_0(A_s-A_c)}{A_s}\\\\\\Y=3Y_0\dfrac{\pi}{4}+Y_0(1-\dfrac{\pi}{4})=Y_0\left(\dfrac{3\pi}{4}+1-\dfrac{\pi}{4}\right)=Y_0\left(\dfrac{\pi}{2}+1\right)\\\\\\Y\approx2.57Y_0=2.57\cdot350=899.5[/tex]

b) If the arm is located in one corner of the square and the arm has a length of the side of the square, we have an irrigated area that is a quarter of a circle with radius l.

We can calculate the proportion of irrigated area in the square plot, and if it is bigger than the proportion of irrigated area when we have the sprinkler in the center (proportion of 0.78 of irrigated area), then it is better to put the sprinkler in the corner.

The ratio of the irrigated area to the total area is:

[tex]\dfrac{Aq}{A_s}=\dfrac{\pi r^2/4}{l^2}\\\\\\r=l\\\\\dfrac{Aq}{A_s}=\dfrac{\pi l^2/4}{l^2}=\dfrac{\pi}{4}\approx 0.78[/tex]

The ratio of irrigated area to the total area of the square plot is the same if we put the sprinkler in the center (with half side as the ratio) or in the corner (with ratio of the side of the square).

the answers are
a) 1°
b)14°
c)24°
d)31°

Answers

Answer:

b) 14°

Step-by-step explanation:

To solve this, you need to make an equation. since a line is equal to 180°, you can add the two angles together. for example, x+96+5x=180. you would write this because these two angles are on a line, which makes the total sum 180°. now you solve: 6x+96=180. 6x=84. x=14°. :)

Answer:

Step-by-step explanation:

Which points can be used in the diagram as the third vertex to create a right triangle with hypotenuse XY? Select all that apply. (-4, -2) (-2, 1) (-2,-2) (2, 4) (3, 4)

Answers

Answer:

(-2,-2) and (3,4)

Step-by-step explanation:

Edge 2020

Answer:

the other person is right -2, -2 and 3, 4

Step-by-step explanation:

I had to do this

What is another way to say 345 centimeters?

345 cm
345 cg
345 mm
34.5 dl

Answers

345 cm

this is because cm is the abbreviation of centimeters.

If you get 17 out of 20 questions correct on your next test, what percent of the test you answer incorrectly?

Answers

Answer: 85%

Step-by-step explanation:

You can use proportions to solve this answer.

17/20=x/100

Solve for X

17(100)/20=x

85=x

Answer:

15% incorrect

Step-by-step explanation:

17/20 = x/100

17 ×5= 85

20×5 = 100

85/100 correct

15/100 incorrect

Find an equation equivalent to r = 10 sinθ in rectangular coordinates

Answers

Answer:

[tex]x^{2} + y^{2} - 10\cdot y = 0[/tex]

Step-by-step explanation:

The following expressions are used to transform from polar into rectangular form:

[tex]r = \sqrt{x^{2}+y^{2}}[/tex]

[tex]\sin \theta = \frac{y}{\sqrt{x^{2}+y^{2}}}[/tex]

Now, the variables are substituted and equation is finally simplified:

[tex]\sqrt{x^{2}+y^{2}} = 10\cdot \frac{y}{\sqrt{x^{2}+y^{2}} }[/tex]

[tex]x^{2}+y^{2} = 10\cdot y[/tex]

The equivalent equation in rectangular coordinates is:

[tex]x^{2} + y^{2} - 10\cdot y = 0[/tex]

A train traveling through Japan has 909090 passengers.
525252 passengers get off in Tokyo. In Yokohama, another 292929 passengers get off the train.
How many passengers are still on the train?

Answers

Answer:

Step-by-step explanation:

After 81 passengers get off, only 9 passengers remain on the train of the original 90.

ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing.

Answers

Answer:

C. [tex]F(x) = -x^2 - 3[/tex]

Step-by-step explanation:

The function, F(x), has flipped over the x-axis (as seen) meaning that the function has to have a negative sign in front. The function has also shifted downwards 3 units, meaning that 3 has to have been subtracted from the function.

This makes "C," the correct answer, as it fulfills these requirements.

Imagine we wanted to investigate whether the reason for quitting smoking affects success rate. We recruited a sample of 120 smokers. Half wanted to quit to improve their appearance (yellow teeth and bad breath, etc) and half wanted to quit to improve their health (life expectancy, etc). After six months we measured how successful they had been at quitting smoking. The data were skewed, so we ran a Mann-Whitney test on the data (output below)
a) People who wanted to quit smoking to improve their appearance (M= 66.91) were significantly more successful at quitting than those who wanted to quit to improve their health (M= 54.09), U = -2.04, z = 188.57, p = .04
b) People who wanted to quit smoking to improve their appearance did not significantly differ from those who wanted to quit to improve their health, U = 1415.50, z = -2.04, p = .04
c) People who wanted to quit smoking to improve their health were significantly more successful at quitting than those who wanted to quit to improve their appearance, U = 1415.50, z = -2.04, p = .04
d) People who wanted to quit smoking to improve their appearance were significantly more successful at quitting than those who wanted to quit to improve their health,, U = 1415.50, z = -2.04, p = .04.

Answers

Answer:

I think is C

Step-by-step explanation:

Please help me!!!!!!!

Answers