Slope:
y-intercept:
Equation:

Answer:

b

Step-by-step explanation:

Answer:

− 24 a ^3 b ^7

Step-by-step explanation:

Explanation:

Of course, the plumber might not want a haircut, but he might have a wife, a fiancee, or a sister who may need the services of a hairdresser so working for the hairdresser would earn him credit that can be used by any of these people. So in a sense, he is getting things done for others.

Therefore, the time-bank service solves a problem by allowing people to receive services without exchanging money.

Answer:

vertex = ( - [tex]\frac{3}{2}[/tex],  [tex]\frac{75}{4}[/tex] )

Step-by-step explanation:

Given a parabola in standard form

y = ax² + bx + c ( a ≠ 0 )

Then the x- coordinate of the vertex is

[tex]x_{vertex}[/tex] = - [tex]\frac{b}{2a}[/tex]

Given

y = - 3(x - 1)(x + 4) ← expand the factors using FOIL

  = - 3(x² + 3x - 4) ← distribute parenthesis by - 3

  = - 3x² - 9x + 12 ← in standard form

with a = - 3 and b = - 9 , thus

[tex]x_{vertex}[/tex] = - [tex]\frac{-9}{-6}[/tex] = - [tex]\frac{3}{2}[/tex]

Substitute this value into the equation for corresponding value of y

y = - 3( - [tex]\frac{3}{2}[/tex] - 1)( - [tex]\frac{3}{2}[/tex] + 4)

  = - 3 × - [tex]\frac{5}{2}[/tex] × [tex]\frac{5}{2}[/tex]

  = - 3 × - [tex]\frac{25}{4}[/tex]

  =  [tex]\frac{75}{4}[/tex]

Thus

vertex = ( - [tex]\frac{3}{2}[/tex], [tex]\frac{75}{4}[/tex] )

Answer:

-3

Step-by-step explanation:

Let the first term be a-d, second term be a and third term be a+d

d is the common difference

If each term, starting with the 3rd term, is found by multiplying the previous two terms then:

a(a-d) = a+d

a²+ad-a-d = 0

a(a+d)-1(a+d) = 0

(a+d)(a-1) = 0

a-1 = 0

a= 1

a+d = 0

1+d = 0

d = 0-1

d = -1

Get the sixth term

nth term of a sequence is expressed as

Tn = a+(n-1)d

T6 = 1+(6-1)(-1)

T6 = 1+5(-1)

T6 = 1-5

T6 = -4

Get the third term T3

T3 = a+2d

T3 = 1+2(-1)

T3 = 1-2

T3 = -1

difference between the 6th and 3rd terms in the sequence is expressed as;

Difference = T6-T3

Difference = -4-(-1)

Difference = -4+1

Difference = -3

Answer:

D. -3r^2 + 11r + 9

Step-by-step explanation:

8r + 4r^2 + 3r + 9 - 7r^2

shift somethings around so it's easier to tell

4r^2 - 7r^2 + 8r + 3r + 9

simplify/add

-3r^2 + 11r + 9

Answer:

The last one.

Step-by-step explanation:

Answer:

It is the last one

Step-by-step explanation:

I have this questions

Answer:

0.989

Step-by-step explanation:

The formula for Margin of Error is:

z × Standard deviation/√n

Where

z = z score for 99% confidence Interval

= 2.576

n = 61 people

Standard deviation = $3

Hence,

Margin of Error

= 2.576 × 3/√61

= 0.989

Answer:32

Step-by-step explanation:

perimeter is the sum of the length of its four sides

2l plus 2w

Answer:

(0,6), and (18,0)

Step-by-step explanation:

2x +6y = 36

6y = -2x +36

y =(-2/6) x+ 36/6

y=(-1/3)x +6

compare this equation to y=mx+b where b is the y-intercept so the

y-intercept is a point at (0, 6)

to find the x-intercept make the equation equal to 0

(-1/3)x+6=0 subtract 6 in both sides

(-1/3)x = -6 cross multiply

-x = 3*-6

x=18 so the

x-intercept is a point at (18,0)

Answer:

a = 2.5

Step-by-step explanation:

a - a = -5

-2a = -5

5 = 2a

5 by 2 = 2.5

Therefore a = 2.5.

Why urgent?

See attachment for math work and answer.

I gave you two different answers for 2b.

Answer:

t = 1

Step-by-step explanation:

2t + 8 = 10

2t = 2 (-8 on both sides)

t = 1 (divide 2 on both sides)

Answer:

t = 1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

2t + 8 = 10

Step 2: Solve for t

Answer:

i think just any negative numbers

Step-by-step explanation:

like for example -10 and -2. their sum is -12 and when subtracted is -8

Answer:

Below

Step-by-step explanation:

Given Data:

Q) What are the two numbers?

Lets suppose the first number to be x and the second number to be y

The first point states sum of two number which is x + y is less than 2 so our first expression becomes,

[tex]x+y<2[/tex]

The second point states that the if we subtract the second number from the first number which states x - y the difference is greater than 1 so our second expression becomes,

[tex]x-y<1[/tex]

1) The riddle can be represented by a system of inequalities. Write an inequality for each statement.

The inequality for the first statement is

[tex]x+y<2[/tex]

The inequality for the second statement is

[tex]x-y>1\\[/tex]

I assume the second part to the question would be solve for x and y xD

so here goes

2)

If we just simply add both the equations we get the following result:

[tex]x+x+y-y=2+1[/tex]

Just suppose there is an equal to sign instead of less than or greater than

[tex]x+x+y-y=2+1\\2x+0=3\\x=3/2\\x=1.5\\[/tex]

now put the value of x in any one of the two equations I choose equation 1

[tex]x+y=2\\1.5+y=2\\y=2-1.5\\y=0.5[/tex]

I attached an image so you can understand it better :)

Answer:

Using the y=mx+b formula: -6/5

Step-by-step explanation:

6x + 5y = -5

5y = -6x -5

y = -6/5x -1

The slope would be -6/5, meaning the line would travel 5 to the right and 6 down, starting from the coordinate 0, -1.

Hope I helped.

Answer:

it takes the marshall to catch up to the robber about 2.7 hours.

Step-by-step explanation:

if you want the work i can give it i hope this helps and have a brilliant day

Answer:

20 miles

Step-by-step explanation:

Let d be the distance. Then:

11/66=d/120

66d=1320

d=20 .......................

Answer:

what do you want us to tell you

Step-by-step explanation:

i would guess c but i'm not 100% sure

Answer:

1 cm

Step-by-step explanation: WOOOO  brainiest pls

Answer:

1. 12cm.

2. 10cm.

3. 18cm.

4. 16cm.

5. 3cm. (or -3 if your question was negative.)

6. 36cm.

7. 8cm.

Explanation:

To find the radius of a circle, simply divide the diameter by 2.

With this being said we can just add on top of the given radius.

Example:

The given radius is 5cm. What is 5cm + 5cm? 10cm.

Thus, getting our answer.

Answer:

1. 12cm.

2. 10cm.

3. 18cm.

4. 16cm.

5. 3cm. (or -3 if your question was negative.)

6. 36cm.

7. 8cm.

Explanation:

To find the radius of a circle, simply divide the diameter by 2.

With this being said we can just add on top of the given radius.

Example:

The given radius is 5cm. What is 5cm + 5cm? 10cm.

Thus, getting our answer.

Step-by-step explanation:

Answer:

80 children

Step-by-step explanation:

(200 * 40) /100 = 80

Step-by-step explanation:

-3x -2 less than 8.9

-3x less than 8.9+2

-3x less than 10.9

x =10.9/-3

Answer:

$113. 35

Step-by-step explanation:

first multiply 99.99 by 0.09 and then add that to 99.99

after that multiply 108.99 by 0.04 and you get 113.35

Answer:

The 2 integers would be: 2 and 8

Step-by-step explanation:

2 + 8 = 10

Reciprocal of 2: 1/2

Reciprocal of 8: 1/8

1 / 2 - 1 / 8 = 4/8 - 1/8 = 3/8

Answer:

32

Step-by-step explanation:

Answer:

9 hrs

Step-by-step explanation:

Joshua has already saved $43.50 so you subtract $43.50 from 70 which leaves you with $26.50. Joshua still needs $26.50.

$26.50 divided by $3 per hr is 8.833 repeating. Obviously you can’t work 8.833 hrs so you round it up to 9. So, Joshua has to work for at least 9 hrs more.

Hope this helps :)

Answer:

The answer is -4

so x= negative 4