Two friends argue over who brushes their teeth more often.
Who is more likely to brush both morning and evening? Assume all events are independent.


Multiple choice answers in picture below

Answer:

The slope is (10,4)

Step-by-step explanation:

I have linked a picture to the graph I used as reference. The equation in y=mx+b form is y=10/4+0 or something like that I'm unsure about making the equation because there is no y-intercept

Answer:

I believe the answer is 10/3

Step-by-step explanation:

x + 5/3 = 5

    -5/3    -5/3

x = 10/3

Given:

The ratio of the number of fiction books to the number of non-fiction books in a library is 5:2.

Total number of books = 1421

To find:

The number of books of each type.

Solution:

Let the number of fiction books be 5x and number of non-fiction books be 2x.

Total number of books = 1421

[tex]5x+2x=1421[/tex]

[tex]7x=1421[/tex]

[tex]x=\dfrac{1421}{7}[/tex]

[tex]x=203[/tex]

Now,

Number of fiction books : [tex]5(203)=1015[/tex]

Number of non-fiction books : [tex]2(203)=406[/tex]

Therefore, the number of fiction and non-fiction books are 1015 and 406 respectively.

Answer:

yes they are congruent because they are the same size

Step-by-step explanation:

theyre the same size so yes

Answer:

3n-7=2n+5

Step-by-step explanation:

The equation is : 3n-7=2n+5

3n-2n=12

n=12

Hope I helped!

Answer:

do we put all numbers on one side

which is

-6=-6/4x

then we multiply by 4

-24=-6x

then divide by -6

x=4

Answer:

[tex]x=4[/tex]

General Formulas and Concepts:

Step-by-step explanation:

Step 1: Define equation

[tex]2=8-\frac{6}{4} x[/tex]

Step 2: Solve for x

Step 3: Check

Plug in x to verify it's a solution.

Answer:

Step-by-step explanation:

The way to do this is just to add the two real parts together and add the two imaginary parts together.

2 + 5j + 7 - 3j

2 + 7 + 5j - 3j

9 + 2j

Step-by-step explanation:

Given expression:

     2x - y + 3  = 0

The co-ordinates of the points at which the line intersects the coordinate axes is unknown?

Now,

     2x - y + 3 = 0

 Let us rearrange the equation;

        -y = -2x - 3

Multiply through by (-1);

        y = 2x + 3

the point where the line intercept the y- axis, x = 0

  so,

          y = 2(0) + 3  = 3

Coordinates  = (0,3)

the point where the line intercepts the x-axis, y = 0;

       0 = 2x + 3

      2x  = -3

       x  = [tex]\frac{-3}{2}[/tex]

Coordinates  = ([tex]\frac{-3}{2}[/tex] , 0)

Answer:

y = -5x - 8

Step-by-step explanation:

Take the points (-5,-4) and (0,-3) plug them into this formula to get the slope.

[tex]\frac{y2 - y1 }{x2 - x1}[/tex]

Now plug in your points

[tex]\frac{-3 - (-4)}{0 - (-5)} \\\\\frac{1}{5}[/tex]

Since you're slope is 1/5 the slope of the perpendicular line is going to be the totally opposite -5 is the slope of the perpendicular line.

Now plug in -5 and the point (-2,2) into y = mx + b to get the y-intercept

2 = -5(-2) + b (b represents the y-intercept)

2 = 10 + b (subtract 10 from both sides)

-8 = b

The perpendicular line looks like this y = -5x - 8

Hope this helps ya! Keep smiling!

Answer:

C

Step-by-step explanation:

Answer:

its a. they were trying to time the last possible second

Step-by-step explanation:

i took the test on edge and got %100 hope this helped:)

Answer:

123 x h because you can't put them together but we can add the stuff that is already there so we get 123 and times h thats our answer

Answer:

(D). (8, - 5)

Step-by-step explanation:

Coordinates of a center of a circle (x - h)² + (y - k)² = r² is (h, k)

Coordinates of the midpoint are ( [tex]\frac{x_{1} +x_{2} }{2}[/tex] , [tex]\frac{y_{1} +y_{2} }{2}[/tex] )

(x² - 10x + 25) + (y² + 2y + 1) = 25

(x - 5)² + (y + 1)² = 5²

(5, - 1) are coordinates of the center of the circle and (5, - 1) is a midpoint of the segment connected (2, 3) and (x, y)

5 = (2 + x) / 2 ⇒ x = 8

- 1 = (3 + y) / 2 ⇒ y = - 5

(D). (8, - 5)

Answer:

0

Step-by-step explanation:

Answer:

Step-by-step explanation:

rip

Answer:

Not equivalent

Step-by-step explanation:

The three would also be distributed to z making the correct equivalent expression 15+3z

Answer:

112.5

Step-by-step explanation:

plz mark me brainlest if its correct lol

Answer:

112.5

Step-by-step explanation:

(Checked and correct)

Given :

Center of circle, C = ( 1 , 5 )

Point on circle, P = ( 5 , 1 )

To Find :

The radius of a circle.

Solution :

We know, radius of circle is the distance between center and point of circle.

Distance between two points A(p,q) and B(r,s) is given by :

[tex]D = \sqrt{(p-r)^2+(q-s)^2}[/tex]

So, distance between the points (1, 5) and (5, 1) is :

[tex]D = \sqrt{(1-5)^2+(5-1)^2}\\\\D = 5.66 \ units[/tex]

Therefore, radius of circle is 5.66 units.

Hence, this is the required solution.

Answer:

Step-by-step explanation:

we will use ratio

magazines : cost

4 : $15

16 : $60

we will multiply 4 by 4 and 15 also by 4 so 16 magazines will cost $60

The cost of 16 magazines is $22.5.

Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.

Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.

Isabel bought 4 magazines for a total of $15.

The unit rate of the magazines,

= 15/4 = $3.75.

The cost of 16 magazines,

= 6 x 3.75

= $22.5

Therefore, the cost is $22.5.

To learn more about the multiplication;

https://brainly.com/question/19634536

#SPJ2

Answer:

74%

Step-by-step explanation:

Answer:

0.74

Step-by-step explanation:

Answer:

(y - i[tex]\sqrt{7}[/tex])(y + i[tex]\sqrt{7}[/tex])

Step-by-step explanation:

Factor as a difference of squares, that is

y² + 7

= y² - (i[tex]\sqrt{7}[/tex] )²

= (y - i[tex]\sqrt{7}[/tex])(y + i[tex]\sqrt{7}[/tex])

Answer: c=-1,b=5,a=-5

Step-by-step explanation: If c=-1, substitute it into the second equation first. The second equation becomes -2b-1=-11, simplify it becomes -2b=-10, divide by 2 it becomes -b=-5, so b=5. Then you substitute b and c into the first equation. The first equation becomes a+5+-(-4)=4, simplify it becomes a+5+4=4, Simplify again it becomes a=-5.

Answer:

11 marbles

Step-by-step explanation:

44 green marbles, which is 4 times the amount of blue marbles

44/4=11

Answer:

Step-by-step explanation:

4y-9+9= 4y since the 9's cancel each other out.

Answer:

The legs are a and b, the hypotenuse is c

Step-by-step explanation:

The legs of a right triangle are the two smaller sides. The hypotenuse is the longest side it is also always opposite of the 90-degree angle. If you need to find the lengths of sides remember the Pythagorean theorem, .

Answer:

yes the person above me is correct .

Step-by-step explanation:

good job :)

Answer:

sorry if this is confusing

Step-by-step explanation:

16 miles = 12 miles

------------ ----------------

20 mins. how many mins?

16 = 12 cross multiply 16? = 240 divide by 16 240 divided by 16 = 15 miles

20 ? because 15 x 16 = 240

Answer:

J.

Step-by-step explanation:

It crosses through (0,0) and has a slope of 2.5 or rather 5/2 because when the x value is at 4 the y value is at 10 that simplifies to 5/2 or 2.5.

Answer: 1,356 tickets

12x=16,272

divide by 12 on both sides

12x÷12=16,272÷12

x=16,272÷12

x=1,356

I hope this is good enough:

Answer: too Using the triangle pictured, find the measure of angle A. Round your answer to the nearest tenth.

.205 yep

Answer:

Step-by-step explanation:

1 .

step 1:  multiply the 5 to the bracket =5p+10-p

step 2 : subtract the p from the 5 p =5p-p+10 = 4p+10

2.

step 1 : multiply the 3 to the bracket = 8h + 12h-18

step 2: add the 8h to the 12h  = 20h - 18

3.

multiply the 4 to the bracket = 4x+32 +9x

add 4 x to 9 x = 13x +32

4.

multiply the 2 to the bracket = 6y +8 +9

add the 8 to the 9 = 6y + 17

5.

multiply to six to the bracket =9x + 12x +18

add the 9 and 12 x = 21x+18

6 .

multiply the 3 to the bracket = 9m + 3 +2m

add the 9m to 2m = 11m+ 3

7.

multiply the 2 to the bracket = 2r + 18 -6

subtract the 18 from the six = 2r +12

8 .

multiply the five to the bracket = 15 d + 40

9.

multiply the 4 to the bracket = 8m+8+3m

add the 8 m to the 3 m = 11m + 8

10 .

multiply the 10 to the bracket= 5y +20 +10 y

add the 5y and the 10 y = 15y + 20

:)

hope u understood and not just copied and pasted

Answer:

x=-1

Step-by-step explanation:

7x + 8 − 3x = −6 + 10

4x+8=4

4x=4-8

4x=-4

x=-4/4

x=-1

Please mark Brainliest!!! Hope I helped!

Answer:x=-1

Step-by-step explanation: