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3 years ago

Can someone help me with this? I will mark you as brainliest!

Mathematics

1 answer:

Otrada [13]3 years ago

7 0

Answer:

(in image)

Step-by-step explanation:

sorry it's sloppy i used windows paint to fill it in but if the probability for heads is 2/7 then the probability for tails is 5/7. Multiply the probabilities for each situation to get answers.

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Find the midpoint from (-2,-2) to (6,6)

timama [110]

(2,2)

(x1+x2)/2, (y1-y2)/2
(-2+6)/2=(2)
(-2+6)/2=2

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3 years ago

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Why is randomization important when setting up an experiment to answer this research question?

Leokris [45]

Answer:

Answer c !

Step-by-step explanation:

Hope this helps c:

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3 years ago

Can someone find the answer

Alexus [3.1K]

Answer:

it is B.

Step-by-step explanation:

B. can i have brainlyest please

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2 years ago

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Jack is 35 years younger than Karen. Frank is half of Jack's age. Jenifer is 17 years older than Frank. If Jennifer is 35 years

barxatty [35]

Answer:

Karen is 71 years old

Step-by-step explanation:

Known

Karen=Jack +35

Frank=1/2 Jack

Jenifer=Frank+17

If Jenifer=35

35=Frank+17

18 = Frank

18=1/2 Jack

36= Jack

Karen= Jack+35=36+35=71

4 0

2 years ago

Using the method of completing the square, put each circle into the form

tatiyna

Answer:

Standard form: $(x-\frac{1}{2})^2 + (y-0)^2 = 15$

Center: $(\frac{1}{2}, 0)$

Radius: $r =\sqrt{15}$

Step-by-step explanation:

The equation of a circle in the standard form is

$(x-h)^{2} + (y-k)^{2} = r^{2}$

Where the point (h, k) is the center of the circle

To transform this equation $4x^{2} -4x + 4y^{2} - 59 = 0$ this equation in the standard form we use the method of square.

First, we group similar variables

$(4x^{2} -4x) + (4y^{2}) - 59 = 0$

Divide both sides of equality by 4

$(x^{2} -x) + (y^{2}) - 14.75 = 0$

Now we complete square for variable x.

Take the coefficient "b" that accompanies the variable x and divide by 2. Then, elevate the result to the square:

$b =-1\\\\\frac{b}{2}= \frac{-1}{2}= -\frac{1}{2}\\\\(\frac{b}{2})^2= (-\frac{1}{2})^2 = \frac{1}{4}$

Now add $(\frac{b}{2})^2$ on both sides of the equality

$(x^{2} -x +\frac{1}{4}) + (y^{2}) - 14.75 = (\frac{1}{4})$

Factor the expression and simplify the independent terms

$(x-\frac{1}{2})^2 + (y^{2}) = 15$

$(x-\frac{1}{2})^2 + (y-0)^2 = 15$

Then

$h =\frac{1}{2}\\\\k=0$

and the center is $(\frac{1}{2}, 0)$

radius $r =\sqrt{15}$

3 0

3 years ago