at a picnic each person shakes hands with every other person once. if there are 10 handshakes in total how many people are at the picnic​

Standard: 784,000

Word: seven hundred eighty-four thousand

Expanded: (700,000) + (80,000) + (4,000)

Answer:

C) x²-2x-15=0

Step-by-step explanation:

You could put both -3 and 5 in the equations to guess and check, but the better way is to use them to create the factors.  If -3 is a root, one of the factors must be (x+3).  If 5 is a root, the other factor must be (x-5).  

(x+3)(x-5)

x²-5x+3x-15=0

x²-2x-15=0

Step-by-step explanation:

x2+2x_15:1234589098988888

Answer:

3 1/24

Step-by-step explanation:

Drew: 5 3/8

Collin: 8 5/12

8 5/12-5 3/8=

Answer:

The one the left Will most likely land on 5,6, and 1 and less likely to land on 2,3,and 4 and the one on the right you are more likely to land on all equally

Step-by-step explanation:

The answer to the given question about recursive formulas option D " aₙ = 5 (1/3)ⁿ⁻¹ ; aₙ = 1/3(aₙ₋₁) ; a₁ = 5

The explicit formula matches the given sequence, since 5(1/3)ⁿ⁻¹ simplifies to 5, which is the first term of the sequence, and (1/3)ⁿ⁻¹ gives the correct common ratio of 1/3. The recursive formula also matches the given sequence, since 1/(a(n-1)) simplifies to 3 × a(n-1), which gives the correct common ratio of 1/3. Therefore, option D is correct. Therefore, the answer is option D: " aₙ = 5 (1/3)ⁿ⁻¹ ; aₙ = 1/3(aₙ₋₁) ; a₁ = 5

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Answer:

3, and -3

Step-by-step explanation:

Because absolute value is the distance away from zero, |3| and |-3| would both be 3 units away from 0. Be sure to have the negative on the inside if you're trying to make something positive, otherwise -|3| means that the absolute value of 3 would then become negative since the negative sign isn't a part of the absolute. hope this helps!

The numbers whose absolute values is 3 are : 3 and - 3

The absolute value of a number is the distance from zero a number is on the number line. Absolute values measures the distance from zero ignoring whether the distance is to the right or left of the number line.

Three units to the right of Zero = 3

Three units to left of Zero = -3

The absolute value of - 3 represented as |-3| = 3

Hence, The numbers whose distance from zero is 3 on the number line are : 3 and - 3

Learn more on absolute values of numbers : https://brainly.com/question/19420051

Answer:

i think b or c

Step-by-step explanation:

i tryed sorry if they or one

wrong

Answer:

II and IV, so C

Step-by-step explanation:

Answer:

6x -7

Step-by-step explanation:

Answer:

6x-7

Step-by-step explanation:

you distribute the 1/3 to everything in the parenthesis

Answer:

2

Step-by-step explanation:

(3-2)x2(3-2)^2

Subtract the numbers

1x2(3-2)^2

1x2x1^2

Any expression multiplied by 1 remains the same

2x1^2

1 raised to any power equals 1

2x1

Any expression multiplied by 1 remains the same

2

Answer:

Use the slope formula

Points A(a, b) and B(c, d)

Points A(-7, a) and B(c, d)

Answer:

La respuesta es 7/8

Step-by-step explanation:

Answer:

y = -4x-4

Step-by-step explanation:

We need to find an equation of the line that passes through (1,0) and has a slope of m=-4.

The equation of a line is given by :

y = mx+c

Where

m is slope of line

Put all the values,

y = -4x+c

Put x = 1 and y = 0

So,

0 = -4(1)+c

c = -4

So, the required equation is :

y = -4x-4

Answer:

5.16

Step-by-step explanation:

We multiply the number of weeks by the number of days to find the total amount of days that she ran:

5 weeks × 3 days/week = 15 days

We are looking for the amount of miles/day (which represents the number of miles per day).

So, we take [tex]\frac{77.4miles}{15days}[/tex]= 5.16 miles/day

Answer:

Point Form (graph) : ( − 22/ 3 , − 22/ 3 )

Equation Form: x = − 22/ 3 , y = − 22/ 3

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Answer:

a= 14^2 or 196

b= 48^2 or 2304

c= 50^2 or 2500

Step-by-step explanation:

Answer:

Step-by-step explanation:

The sum of supplementary angles is 180°.

5x+95 = 180

5x = 85

x = 17°

Answer:

What is it?

Step-by-step explanation:

Answer:

The slope of the table is 1/5

Step-by-step explanation:

[tex]m=\frac{3-1}{10-0}[/tex]

[tex]m=\frac{2}{10}[/tex]

[tex]m=\frac{1}{5}[/tex]

Answer:

There is no enough info

Answer:

1. 5/42

2. 9/20

Step-by-step explanation:

(hope this helps!)

Answer:

-1/2

Step-by-step explanation:

we know x=9

putting the value, we get,

-5/6(9) + 7

-15/2 + 7

-7.5 + 7

= -0.5

= -1/2

I got you the answer is - 1/2 and in decimal form its - 0.5.

Answer:

x= -[tex]\frac{3}{2}[/tex]

Step-by-step explanation:

just equal both of the equations and solve for x

Answer:

122/25

Step-by-step explanation:

488/100 percent means out of 100

find the lowest common multiple for 488 and 100 which is 4

divide numerator(488) and denominator(100) by 4

488÷4=122

100÷4=25

Answer: it is b

Step-by-step explanation: just count how many lines between x and x' to the right its positive to the left its negative

6'2 = 74 inches.

74-58 = 16

16 inches taller.

Hope this helps ^^

Answer:

B - 108

Step-by-step explanation:

A regular pentagon is 540 degrees. Divide 540 by 5 (since there are five sides) which equals 108 degrees.

Answer:

hope it may help you

Step-by-step explanation:

one number = 661

second number = 205