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2 years ago

Please need help on this one

Mathematics

2 answers:

GarryVolchara [31]2 years ago

5 0

Stefano should have divided the mean by six when finding the mean hope this Leo's ;)

elena-14-01-66 [18.8K]2 years ago

3 0

Answer:

C. He should have divided by 6 when finding the (MAD)

Step-by-step explanation:

He divided by 4 when there were six values.

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A diameter of a circle has endpoints P(-10,-2) and Q(4,6).

kompoz [17]

Answer:

a. (-3, 2).

b. √65

c. (x + 3)^2 + (y - 2)^2 = 65

Step-by-step explanation:

a. The center is the midpoint of the diameter PQ.

= (-10+4)/2, (-2+6)/2

= (-3, 2).

b. The radius is the distance from the center to a point on the circle.

Take the point (4, 6):

The radius = √((-3-4)^2 + (2-6)^2)

= √65.

c. The equation of the circle is:

Using the standard form

(x - h)^2 + (y - k)^2 = r^2 where (h, k) is the center and r = the radius:

it is (x - (-3)^2 + (y - 2) = 65

= (x + 3)^2 + (y - 2)^2 = 65.

4 0

3 years ago

Read 2 more answers

Place the quadratic y=2x^2+24x+79 into vertex form by using the method of completing the square and then state the coordinates o

katrin2010 [14]

Answer:

$y=2(x+6)^2+7$

$(-6,7)$

Step-by-step explanation:

$y=2x^2+24x+79$

Completing the square is a process of converting a quadratic equation in standard form into vertex form.

The first step in completing the square is grouping the quadratic and linear terms of the quadratic equation.

$y=(2x^2+24x)+79$

Factor out the coefficient of the quadratic term,

$y=2(x^2+12x)+79$

Now complete the square, add a term to make the grouped part of the equation a complete square, then balance the equation.

$y=2(x^2+12x+36-36)+79$

Simplify,

$y=2(x^2+12x+36)+79+(2)(-36)$

$y=2(x+6)^2+79-72$

$y=2(x+6)^2+7$

The x-coordinate of the vertex of the equation is equal to (-1) times the numerical part of the quadratic term, and the y-coordinate is equal to the constant.

$(-6,7)$

7 0

2 years ago

General form of x/3 + y/-6 =1 ?

dolphi86 [110]

Answer:

y-6=4(x+3)

Step-by-step explanation:

8 0

3 years ago

Please help asap, no rocky!

Naddika [18.5K]

No, because it has a constant rate of change

5 0

3 years ago

Read 2 more answers

HELP ASAP PLEASEEEEEEEEEE

Andrew [12]

Given the recursive formula, each terms is five time the previous one.

This means that:

$f(6)$ is 5 times $f(5)$ , which means $f(6)=5f(5)$
in turn, $f(5)$ is 5 times $f(4)$ , so we have $f(5)=5f(4)$ . This means that $f(6)=5f(5)=5\cdot 5f(4) = 25f(4)$
Finally, $f(4)=5f(3)$ So, substituting this back gives

$f(6)=25f(4)=25\cdot 5f(3)=125f(3)$

In general, since you have $f(n)=5f(n-1)$ , each time you compute a new term you multiply by a factor of 5, so if $m=n+k$ , you have

$f(m)=5^kf(n)$

4 0

2 years ago