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2 years ago

Hello i really need help on this its just 3 short question pls dont answer if you dont know it

Mathematics

2 answers:

Veseljchak [2.6K]2 years ago

8 0

Answer:

1. m = 60

2. k = 55

3. v = 182

solong [7]2 years ago

6 0

Answer:

1) 60

2) 55

3) 182

Step-by-step explanation:

Hope this helps!

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A circle has a diameter with endpoints at (6, 5) and (8, 5). Write the equation for the circle.

mario62 [17]

Answer:

$(x-7)^2+(y-5)^2=1$

Step-by-step explanation:

The two things that are required to formulate the equation of the circle is the center coordinate and the radius of the circle!

Center of the circle:

The center of the circle always lies at the midpoint of the endpoints of its diameter: Let's call the endpoints A(6,5) and B(8,5).

Using the midpoint formula we'll get:

$(x_m, y_m) = \left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

$(x_m, y_m) = \left(\dfrac{6+8}{2},\dfrac{5+5}{2}\right)$

$(x_m, y_m) = (7,5)$

This is the center coordinate of our circle.

Radius:

The radius of the circle is the distance from the center of the circle to any of the endpoints of the diameter (A or B)

We can use the distance formula:

$r = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$

$r = \sqrt{(x_1-x_m)^2+(y_1-y_m)^2}$

$r = \sqrt{(6-7)^2+(5-5)^2}$

$r = \sqrt{1^2}$

$r = 1$

Equation of the circle:

The equation is written as:

$(x-a)^2+(y-b)^2=r^2$

here, (a,b) are the center points of the circle

in our case this is $(a,b)=(x_m,y_m)=(7,5)$

and r = 1

$(x-7)^2+(y-5)^2=1^2$

$(x-7)^2+(y-5)^2=1$

This is the equation of the circle!

3 0

3 years ago

Select all that are true

sertanlavr [38]

A=-1, b=2 I hope this helped. Please please please if you like my answer mark Brainly:)

3 0

1 year ago

Please Hurry!! Consider the two-way table below. Find P(BIC).

Colt1911 [192]

Answer: the answer is B, or P(B|C)=9/24=0.38

Step-by-step explanation:

If you look at the table, you can see that 9 is where BC is. So, 9 is the numerator. The denominator is 24 because that is the total number.

Also, I got this answer correct on Edge

6 0

3 years ago

Read 2 more answers

Please help me smart people!!!!! It would be realllllyyyyy helpful right now!!!!!!

Bumek [7]

9. 2/6 and in simplified form it’s 1/3
10. 10/4 simplified is 5/2
11. 8/2 simplified is 4/1
12. 7/7 which is 1
13. Has no slope
14. 4/7

8 0

3 years ago

Write an equation for the line that contains the points (5,3) and (8,9).

Leviafan [203]

Y= 2x +3

First, you find the slope. ( use slope formula)

y2 - y1 / x2 - x1 = m (slope)

Then just put the y-axis in, add or subtract (depends on the sign)

4 0

3 years ago