I need help with point slope formula bad
i need help with point slope formula bad - 1

Answers

Answer 1
Answer: Ok so this question:
y + 1 = - ( x - 2 )        (distribute the negative inside the parenthesis)
y + 1 = -x + 2             (substitute the y= -1)
-1 + 1 = -x + 2
0 = -x + 2                   (take two to the other side)
-2 = -x                        (divide the negative away from x)
2 = x


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What is 6 1/2 / 3 1/2? please help me!

How do you solve |y+9|>4?

Answers

This is a weird one.  I'm going to work it, but I also want you to look back at the
book or the worksheet and make sure that you copied it correctly.
Because it's weird, I tell you.

| y + 9 | > 4

Subtract 9 from each side of the inequality:

   | y | > -5

OK.  Now, here we go:

'Absolute value' means just the size of the number, no matter whether it's
negative or positive.  So the absolute value of every number is positive.

Got that ?  The absolute value of every number is positive.

So EVERY number is a solution to this inequality.  It doesn't matter what number
' y ' is, its absolute value is always positive.  And if the absolute value is always
positive, then it's definitely always greater than -5 .

Weird ?  I told you so.
Absolute value means that it doesn't matter if the number in the bars is positive or negative, it still comes out to be a positive number. Since the absolute value of anything greater than -4 added with 9 is greater than 4, one answer is y>-4. Absolute value inequalities and equation often have two answers though, a positive and a negative. And since the absolute value of anything less than -14 plus 9 is greater than 4, the second answer is y<14.

PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!What are the equations for the vertical and horizontal asymptotes of the function?

Answers

Answer: (A) vertical asymptote: x = 2, horizontal asymptote: y = 1

Step-by-step explanation:

f(x) = (1)/(x-2)+1

Vertical Asymptote is the restriction on the x-value.  The denominator cannot be zero, so x - 2 ≠ 0  ⇒  x ≠ 2

The restricted value on x is when x = 2  which is the vertical asymptote

Horizontal Asymptote (H.A.) is the restriction on the y-value.  This is a comparison of the numerator (n) and denominator (m).  There are 3 rules that will help you:

  • n > m    No H.A. (use long division to find slant asymptote)
  • n = m    H.A. is the coefficient of n divided by coefficient of m
  • n < m    H.A. is 0

In the given problem, n < m so y = 0, however there is also a vertical shift of up 1 so the H.A. also shifts up.  This results in H.A. of y = 1


Which expression can be used to model the phrase “the sum of three and a number”? 3+x x-3

Answers

Answer:

3+x

Step-by-step explanation:

“the sum of three and a number”

Frame an expression for the given statement

Expression contains variables and operators like add, subtract , multiply and divide

LEt the unknown number be x

Sum represents the addition of two numbers

Sum of three and a number means the addition of 3 and number x

So the expression become 3+ x

a=3+b. That is a reasonable expression, because a= the sum of 3 and b, an unknown number.

IF the navy pier ferris wheel in chicago has a circumference that is 56% of the circunference of the first ferris wheel built in 1893. a. What is the radius of the navy pier wheel?
b. what was the radius of the first ferris wheel?
c. The first ferri wheel took nine minutes to make a complete revolution. how fast was the wheel moving?

Answers

Answer:

a. The radius of the navy pier wheel is 56% of the radius of the first ferris wheel

b. The radius of the first ferris wheel was 179% of the radius of the navy pier ferris wheel

c. The wheel was moving at 0.70 (rad)/(min)

Step-by-step explanation:

Navy pier wheel circumference = Cn

First ferris wheel circumference = Cf

Cn = 0.56*Cf

a.

Circumference Perimeter = 2*π*Radius

Navy pier wheel radius = Rn

First ferris wheel radius = Rf

Cn = 0.56*Cf

2*π*Rn = 0,56*2*π*Rf        (equation 1)

dividing both sides by 2π

Rn = 0,56*Rf

b.

From equation 1

2*π*Rn = 0,56*2*π*Rf

dividing both sides by 2π

Rn = 0.56*Rf

dividing both sides by 0.56

Rf = (1)/(0.56)*Rn

Rf = 1.79*Rn

c.

9 minutes / revolution

1 revolution = 2π radians

The wheel makes 2π radians in 9 minutes

Wheel velocity = (2\pi )/(9)  (rad)/(min)

Wheel velocity = 0.70 (rad)/(min)

A truck travels 205 miles in 3 1/2

hours.
To the nearest tenth, what is the average speed of the delivery truck?
Enter your answer in the box.

Answers

If you would like to know the average speed of the delivery truck, you can calculate this using the following steps:

205 miles ... 3 1/2 hours = 7/2 hours
x miles = ? ... 1 hour

205 * 1 = 7/2 * x
205 = 7/2 * x
x = 205 * 2/7
x = 58.6 miles

The correct result would be 58.6 miles per hour.
avg speed = total distance ÷ total time

205 ÷ 3.5 = 58.571...

round to nearest 10th 58.6 mph

What is the difference between 126 1
/4
and 78 2
/3
?

Answers

The answer of that is 47 7/12