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2 years ago

What is 2+2 (first on to answer get brainliest)

Mathematics

2 answers:

Ira Lisetskai [31]2 years ago

7 0

Answer:

Step-by-step explanation:

2+2=4

Neporo4naja [7]2 years ago

5 0

Answer:

That's easy! :) 2 + 2 = 4

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What is -v+5+4v=1+5v+3

77julia77 [94]

Answer:

Step-by-step explanation:

5+4=9

1+5v+3=(9V)

5 0

2 years ago

Read 2 more answers

What is the equation of the circle whose diameter has endpoints (8,-2) and (-2,6)?

klemol [59]

Answer:

$(x-3)^{2} +(y-2)^{2}=41$

Step-by-step explanation:

step 1

Find the diameter of the circle

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

$A(8,-2)\\E(-2,6)$

substitute the values

$d=\sqrt{(6+2)^{2}+(-2-8)^{2}}$

$d=\sqrt{(8)^{2}+(-10)^{2}}$

$d=\sqrt{164}\ units$

$d=2\sqrt{41}\ units$

step 2

Find the center of the circle

The center is the midpoint of the diameter

The center is equal to

$C=(\frac{8-2}{2},\frac{-2+6}{2})$

$C=(3,2)$

step 3

Find the equation of the circle

The equation of the circle in center radius form is equal to

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

we have

(h,k)=(3,2)

$r=2\sqrt{41}/2=\sqrt{41}\ units$ ---> the radius is half the diameter

substitute

$(x-3)^{2} +(y-2)^{2}=(\sqrt{41})^{2}$

$(x-3)^{2} +(y-2)^{2}=41$

4 0

3 years ago

Find the two-digit number which is 2 times the sum of its digits. Find a statement and number, please.

poizon [28]

A two-digit number is twice the sum of its digit. If the tens digit is 7 less than the unit digit, find the number.
Let x= the unit digit
Then y= the tens digit
And 10y+x= the number

x+y= the sum of the digits
Now we are told that 10y+x=2(x+y) ------1st equation 
We are also told that y=x-7 ----------- 2nd Equation 
So our equations to solve are: 
(1) 10y+x=2(x+y)
(2) y=x-7


Hope it helps

5 0

3 years ago

Read 2 more answers

A bag contains 2 red marbles, 4 blue marbles, and 8 green marbles. What is the probability of choosing a blue marble?

bixtya [17]

Answer:

okay

Step-by-step explanation:

the probability of choosing blue marble is

p(blue)= 4/14

4 0

2 years ago