Which of the following pairs of lines are perpendicular?

y=3x-4 and y=-1/2 x-5
y=1/2 and y=2x-1
y=x and y=-x
Please help with this. 60 points for this!

Answer:

12

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to an exterior angle

3x + 4 + 2x + 1 = 6x - 7 add like terms

5x + 5 = 6x - 7

5 + 7 = 6x - 5x

12 = x

Answer:

they are both divisible by 3

7 x 3 = 21

5 x 3 = 15

Step-by-step explanation:

hope this helps lucas (mr. calvelo)

Answer:

1. $82,500

2. 169 : 110

Step-by-step explanation:

The computation is shown below:

Given that

1. Ratio between two computers is 3:2

And the first computer cost is $55,000

Let us assume the price of the second computer be x.

As we know that

Product of extremes = Product of mean.

2 : 3 :: 55000 : x .

Now cross mutiplication is to be done

2x = $55,000 × 3

x = $1,650,000 ÷ 2

= $82,500

2. Now if the price of the 2nd computer rised by $2,000

So the new cost would be

= $82,500 + $2,000

= $84,500

Now the ratio would be

= $55,000 :  $84,500

= 169: 110

Answer:

sotrrrrrrrrrrryyyyyyytyyttyyytttt plzzzzzz

Answer:A

Step-by-step explanation:

Add 1/6 to both sides

Answer: 42

Step-by-step explanation: 3 x 14

What are the tables? I would need to get more info

Answer:b

Omnivore and predator

Step-by-step explanation:

Explanation:

Each time x goes up by 1, y goes up by 18

slope = rise/run

slope = (change in y)/(change in x)

slope = 18/1

slope = 18

You can also use the slope formula to get the same answer. Let's say we picked the points (2,36) and (3,54). We then would get

m = (y2-y1)/(x2-x1)

m = (54-36)/(3-2)

m = 18/1

m = 18

We get the same result as before.

Since x represents the number of years and y is the number of inches, the slope of 18/1 indicates an increase of 18 inches per 1 year, or just 18 inches per year.

Answer:

Cheetahs can go from 0 to 60 miles per hour in just 3.4 seconds and reach a top speed of 70 miles per hour. While they are the fastest land animal in the world, they can only maintain their speed for only 20 to 30 seconds.

Step-by-step explanation:

Answer:

ok this was a good one so here

Step-by-step explanation:

4 120 30

25 750 30

9 270 30

Answer:

It's either his house or they are the same distance

Step-by-step explanation:

I'm gonna say that they are the same distance from the library because his school is 10 blocks west of the library and his house is 10 blocks east.

Hope this helps!

Answer:

Step-by-step explanation:

A=P(1+r)^t

where A-final amount, P-intial amout, r-interest rate, t-time

A=1000(1+0.03)^3 = $ 1092.73

Answer:

A

Step-by-step explanation:

Answer:

Easy B                  

Step-by-step explanation: srry If It's Wrong

Answer:

Step-by-step explanation:

If it costs $30 to make 6 notebooks then that is $5 for each notebook. So multiply $5 times 50 and you get $250.

Answer:

[tex]y = 7(3^x)[/tex]

Step-by-step explanation:

Given

[tex](x_1,y_1) = (0,7)[/tex]

[tex](x_2,y_2) = (4,567)[/tex]

Required

Determine the formula

An exponential function is of the form:

[tex]y = ab^x[/tex]

For point [tex](x_1,y_1) = (0,7)[/tex]

[tex]7 = ab^0[/tex]

[tex]7 = a*1[/tex]

[tex]7 = a[/tex]

[tex]a = 7[/tex]

For point [tex](x_2,y_2) = (4,567)[/tex]

[tex]567 = ab^4[/tex]

Substitute 7 for a

[tex]567 = 7*b^4[/tex]

Divide both sides by 7

[tex]81 = b^4[/tex]

Take 4th root of both sides

[tex]\sqrt[4]{81} =\sqrt[4]{b^4}[/tex]

[tex]\sqrt[4]{81} =b[/tex]

[tex]b = \sqrt[4]{81}[/tex]

[tex]b = 3[/tex]

Substitute 7 for a and 3 for b in [tex]y = ab^x[/tex]

[tex]y = 7 * 3^x[/tex]

[tex]y = 7(3^x)[/tex]

Answer:

10a+70

Step-by-step explanation:

7x+21

13x

12a-36

-22x

-4b-12

say

Answer:

2.4 or 2 2/5

Step-by-step explanation:

D

Step-by-step explanation:

the y is -2

and the slope is 2/5

which means it is y=2/5x -2

Answer:

x=2y−47x

Step 1: Add 47x to both sides.

x+47x=−47x+2y+47x

48x=2y

Step 2: Divide both sides by 48.

48x

48

=

2y

48

x=

1

24

y

Answer:

x=

1

24

y

Step-by-step explanation:

Answer:

-19/7

Step-by-step explanation:

Answer:

125

Step-by-step explanation:

Answer:

0.5676

Step-by-step explanation:

We have been given these informations from this question ,

probability of 4% = 0.04

q = 1 - p = 1 - 0.04 = 0.96

Sample size n = 60

We solve further by Using binomial probability formula,

P(X = x) = (nCx)*px*(1 - p)^n - x

We have:

(60C0)x 0.04⁰x(0.96⁶⁰+(60C1)x0.04¹x(0.96)⁵⁹+(60C2)x0.04²x (0.96)⁵⁸

From this we would get the probability to be = 0.5676

Answer:

A

Step-by-step explanation:

To find an inverse function you switch f(x) and x, and solve for f(x) (in this case you also rename it to g(x) )

inverse of y=(x-4)/5  is  

5x =  x -4

x = 5x + 4  so A works

Answer:

54c

Step-by-step explanation:

The word "product" means that the operation is multiplication. So the two numbers need to be multiplied. In algebra, the way you multiply a constant and a variable is simply by putting the two next to each other with no other symbol.

Answer:

the answer is A

Step-by-step explanation:

Answer:

The required value of x is 12 units.

Step-by-step explanation:  Given that the figure A is a scale image of figure B.

We are to find the value of x.

Since figure A is the scale image of figure B, so both the figures are similar to each other.

Also, the corresponding sides of the similar figures are proportional, so we get

Thus, the required value of x is 12 units.

Answer:

A = pi * r^2

Step-by-step explanation:

Hope this right if not im sorry

Answer:

m=n

Step-by-step explanation:

Answer:$2094.00

Step-by-step explanation:Put in desmos calculator and put 4.7 percent of 2000 and you get 94 then add 94 to 2000 and you got $2094

Answer:

It's D - There is a constant third difference of 24.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Full charge can be expressed as equation:

The limit for charge is $13, then we got inequality:

Option B: 10 is correct as the only number satisfying the inequality

Answer:

B:10

Step-by-step explanation: bcs it is

Answer:

I think it's B, 1.3 repeating is a irrational number