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3 years ago

WANT BRAINLIEST? u came to the right place :))

Mathematics

1 answer:

ankoles [38]3 years ago

8 0

Answer: Okkkkkkkk so, i know that the circle is NOT a function because it doesnt pass the vertical line test. *To use the vertical line test, take a ruler or other straight edge and draw a line parallel to the y-axis for any chosen value of x. If the vertical line you drew intersects the graph more than once for any value of x then the graph is not the graph of a function.

Looking at the graph we can determain the domain is indeed greater or equal to negative 4 and less than or equal to 4.

x2+y2=16 is correct (4*4=16), and the last one... doesnt really make sense to me. So im guessing thats wrong.

You might be interested in

. Find the area of the regular dodecagon inscribed in a circle if one vertex is at (3, 0).

devlian [24]

Answer:

Area of the regular dodecagon inscribed in a circle will be 27 square units.

Step-by-step explanation:

A regular dodecagon is the structure has twelve sides and 12 isosceles triangles inscribed in a circle as shown in the figure attached.

Since angle formed at the center by a polygon = $\frac{360}{n}$

Therefore, angle at the center of a dodecagon = $\frac{360}{12}$ = 30°

Since one of it's vertex is (3, 0) therefore, one side of the triangle formed or radius of the circle = 3 units

Now area of a small triangle = $\frac{1}{2}.(a).(b).sin\theta$

where a and b are the sides of the triangle and θ is the angle between them.

Now area of the small triangle = $\frac{1}{2}.(3).(3).sin30$

= $\frac{9}{4}$

Area of dodecagon = 12×area of the small triangle

= 12× $\frac{9}{4}$

= 27 unit²

Therefore, area of the regular octagon is 27 square unit.

4 0

3 years ago

student borrows $65,000 for business school at 8.5% stated annual interest with monthly repayment over 8 years. Consider this as

lawyer [7]

Answer:

$First\ monthly\ payment= $858.69$

Step-by-step explanation:

From the Question we are told that

Borrows $65,000

Annual interest 8.5%

Monthly repayment over 8 years

Generally PV of annuity with growth is mathematically represented as

where PV is present value

PV of annuity with growth X= $(P/ (r-g)) * (1- ((1+g)/(1+r))^n)$

$\frac{P}{\frac{8\%}{y12-0.2\%} } *(1-((1+0.2\%)/(1+8.5\%/12))^(^8^*^1^2^)^)=65000$

$196.7213115P* 0.384791918=65000$

$196.7213115P=65000/0.384791918$

$196.7213115P=168922.4668$

$P= 168922.4668/196.7213115$

$P= 858.6892063$

$First\ monthly\ payment= $858.69$

5 0

3 years ago

The average price of a gallon of milk is $3.31. If the price increases .88% each year , how much will a gallon of milk cost in 2

musickatia [10]

Answer:

$3.94

Step-by-step explanation:

You will need to use the compound interest formula for this.

$P(1+\frac{r}{n} )^{nt}$

P = initial balance

r = interest rate

n = number of times compounded annually

t = time

Your equation will look like this:

$3.31(1+\frac{.0088}{1} )^{20}$ = 3.94

5 0

4 years ago

Charles is going camping with his family their campsite is 7/8 miles away they walk at a steady speed 1 7/8 mph how many minutes

Dafna11 [192]

R=d/t
15/8=7/8 divided by t
so t=7/8 divided by 15/8
t=7/15
convert to minute
so 7/15*60=28 min is answer
message does it help u

4 0

3 years ago

I am thinking of a number.

Step2247 [10]

Step-by-step explanation:

Let the number Noah is thinking of be x,

=> x - 19 * 4 = 16

=> x - 19 = 16/4

=> x = 16/4 + 19

=> x = 4 + 19

=> x = 23

If my answer helped , please mark me as brainliest,

Thank you

4 0

4 years ago