All categories

4 years ago

Only the right answers will get brainliest, thanks and five stars!

Mathematics

1 answer:

olga2289 [7]4 years ago

6 0

I’m so sorry but I don’t know the answer you can ask google and they cAn help you hope google can help

You might be interested in

Suppose your heart is beating 72 times per minute. At this rate, how many times will it beat in 15 minutes?

Vlad1618 [11]

Hey there!

All you need to do is multiply the beats per minute by 15 minutes.
72 x 15=1080. Your heart will beat 1080 times in 15 minutes.

I hope this helps!

8 0

4 years ago

Solve the following equation.<br> - 8x=-6x +10

Step2247 [10]

Answer:

x=-5

Step-by-step explanation:

-8x=-6x+10

-8x+6x=10

-2x=10

x=-5

3 0

4 years ago

Read 2 more answers

Is {3,…} a defined set

sergey [27]

Answer:

No it is not a collection of well defined and distinct objects

Hope this helps <3

3 0

3 years ago

Find the equation for the circle with a diameter whose endpoints are (3,-1) and (-2,-1)

cricket20 [7]

Answer:

The equation for the circle is: $(x-\frac{1}{2} )^2 + y^2 = (\frac{5}{2} )^2$

Step-by-step explanation:

Here, let us assume the two end points of the diameter are:

P (3,-1) and Q (-2,-1)

Now, as we knew diameter is the chord that passer through the center of the circle.

⇒ Mid point of DIAMETER = Center coordinates of the Circle

Let us assume O(x,y) is the center of the line segment PQ.

So, by MID POINT FORMULA:

$(x,y)= (\frac{3 -2}{2} , \frac{-1-1}{2} ) =( \frac{1}{2},\frac{-2}{2}) \\\implies (x,y) =( 0.5 , -1)$

⇒ The center coordinates of the circle = O(0.5,-1) ...... (1)

Now, RADIUS = Half of DIAMETER

Using DISTANCE FORMULA:

$PQ = \sqrt{(3-(-2))^2 + (-1 - (-1))^2} = \sqrt{(5)^2 + 0} = 5$

So, Radius = 5/2 = 2.5 units

Now, the equation of circle with radius r and center coordinate ( h,k) is given as: $(x-h)^2 + (y-k)^2 = r^2$

Substitute r = 2.5 and (h,k) = (0.5,0) we get:

$(x-0.5)^2 + (y-0)^2 = (2.5)^2\\\implies (x-\frac{1}{2} )^2 + y^2 = (\frac{5}{2} )^2$

Hence the equation for the circle is: $(x-\frac{1}{2} )^2 + y^2 = (\frac{5}{2} )^2$

5 0

4 years ago

A hiker is at an elevation of 120 feet above sea level.

Artyom0805 [142]

Answer:

Her car is 5 feet above sea level.

Step-by-step explanation:

The hiker is at 120 feet, she then goes 200 feet down which is 120-200. After going into the valley, she is at -80 feet. She then goes up 85 feet. -80+85=5. Her car is 5 feet above sea level.

6 0

3 years ago