# If y = 3x -5 find the value of y when x = -1

QUESTION POSTED AT 20/02/2020 - 11:18 PM

QUESTION POSTED AT 20/02/2020 - 11:18 PM

Plug in negative 1 for x and do order of operations and u should get negative 8

Hol up this seems rly hard Ima get back to uu

ANSWERED AT 30/03/2020 - 01:37 AM

QUESTION POSTED AT 30/03/2020 - 01:37 AM

(1) To find the angle between v and positive x-axis, we first determine the angle formed by v and the negative x-axis. Since v = (-7,8), its vertical measure y is 8 units and horizontal measure x is 7 units.

arctan(8/7) = 48.81°

Solving for angle between v and positive x-axis:

180° - 48.81° = 131.19°

(2) v1 x v2=|v1||v2|cosθ

Calculating for the dot product of the vector:

v1 x v2 = -7*1 + 8*0 = -7

Calculating vector magnitude:

|v1| = √(-7²+8²) = √113

|v2| = √(1²+0²) =1

cosθ = (v1 x v2) /|v1||v2| = -7/(√113 *1) = -0.659

arctan(8/7) = 48.81°

Solving for angle between v and positive x-axis:

180° - 48.81° = 131.19°

(2) v1 x v2=|v1||v2|cosθ

Calculating for the dot product of the vector:

v1 x v2 = -7*1 + 8*0 = -7

Calculating vector magnitude:

|v1| = √(-7²+8²) = √113

|v2| = √(1²+0²) =1

cosθ = (v1 x v2) /|v1||v2| = -7/(√113 *1) = -0.659

ANSWERED AT 30/03/2020 - 01:28 AM

QUESTION POSTED AT 30/03/2020 - 01:28 AM

A=60

B=30

C=60

D=120

E=60

F=60

B=30

C=60

D=120

E=60

F=60

ANSWERED AT 29/03/2020 - 06:35 PM

QUESTION POSTED AT 29/03/2020 - 06:35 PM

The area is 38 because whenever you have to find the area in an equation you always add up the total sides. The shape is a rectangle and the only numbers they give is 6 and 13 obviously the sides are equal so the opposite side of 13 is 13 and the opposite side of 6 is 6 because they're both a certain length. In total you add up all the sides 13 plus 13 is 26, 6 plus 6 is 12 , 26 plus 12 is 38

The perimeter is 78 because they only give you two number so whenever you do a perimeter in an equation you always have to remember to multiply. 13 multiplied by 6 is 78. Hope this helped ( :

The perimeter is 78 because they only give you two number so whenever you do a perimeter in an equation you always have to remember to multiply. 13 multiplied by 6 is 78. Hope this helped ( :

ANSWERED AT 29/03/2020 - 06:34 PM

QUESTION POSTED AT 29/03/2020 - 06:34 PM

What do you mean? Please message me the question and I will gladly help

ANSWERED AT 29/03/2020 - 06:34 PM

QUESTION POSTED AT 29/03/2020 - 06:34 PM

I've attached a picture below of the formula for a **finite geometric sequence. **It includes an **infinite geometric sequence **formula for your reference, too.

Plug in the values.

S₁₀ ≈ 79.92

Plug in the values.

S₁₀ ≈ 79.92

ANSWERED AT 29/03/2020 - 06:31 PM

QUESTION POSTED AT 29/03/2020 - 06:31 PM

**Answer:**

the answer is D (22)

**Step-by-step explanation:**

ANSWERED AT 29/03/2020 - 06:31 PM

QUESTION POSTED AT 29/03/2020 - 06:31 PM

If 2 is 25 then 1 is 12.5

12.5x 9 is 112.50

and 87.50/12.50 is 7 so theres the 2 boxes

12.5x 9 is 112.50

and 87.50/12.50 is 7 so theres the 2 boxes

ANSWERED AT 29/03/2020 - 06:30 PM

QUESTION POSTED AT 29/03/2020 - 06:30 PM

hello :

cot(-x) tan(x)=-1......(*)

* cot(x) = 1/tan(x)

cot(-x) = -cot(x)= -(1/tan(x))

cot(-x) tan(x) = -(1/tan(x))×tan(x)=-1

cot(-x) tan(x)=-1......(*)

* cot(x) = 1/tan(x)

cot(-x) = -cot(x)= -(1/tan(x))

cot(-x) tan(x) = -(1/tan(x))×tan(x)=-1

ANSWERED AT 29/03/2020 - 06:26 PM

QUESTION POSTED AT 29/03/2020 - 06:26 PM

The answer i got was D-17.2 units. i used the distance formula to solve this problem

ANSWERED AT 29/03/2020 - 06:24 PM

QUESTION POSTED AT 29/03/2020 - 06:24 PM

Arc length = angle*radius

Degrees to radians: multiply by pi/180

Arc length = (pi/180*6)*6 = 36/180*pi = pi/5.

The answer is D.

Degrees to radians: multiply by pi/180

Arc length = (pi/180*6)*6 = 36/180*pi = pi/5.

The answer is D.

ANSWERED AT 29/03/2020 - 06:20 PM

QUESTION POSTED AT 29/03/2020 - 06:20 PM

Hello :

1) 2x-3y=6

3y =2x-6

y =(2/3)x-2.......(answer : A) 2/3 )

2) 4x-9y= -36

9y =4x+36

y = 4/9x +4 .......( answer : C) y=4/9x+4 )

3) answer : C) (x+2)=3(y-1)

the slope is : 3 and passing by (-2,1)

1) 2x-3y=6

3y =2x-6

y =(2/3)x-2.......(answer : A) 2/3 )

2) 4x-9y= -36

9y =4x+36

y = 4/9x +4 .......( answer : C) y=4/9x+4 )

3) answer : C) (x+2)=3(y-1)

the slope is : 3 and passing by (-2,1)

ANSWERED AT 29/03/2020 - 06:20 PM

QUESTION POSTED AT 29/03/2020 - 06:20 PM

You have two points so you can use the midpoint formula.

The midpoint formula is (x1 + x2/2, y1 + y2/2).

In this case you are solving for the x-coordinate of the midpoint so you are solving x1 + x2 / 2. Just plug in 7 for x1 and -5 for x2 and solve

The midpoint formula is (x1 + x2/2, y1 + y2/2).

In this case you are solving for the x-coordinate of the midpoint so you are solving x1 + x2 / 2. Just plug in 7 for x1 and -5 for x2 and solve

ANSWERED AT 29/03/2020 - 06:18 PM

QUESTION POSTED AT 29/03/2020 - 06:18 PM

Yes, you multiply the two. Then divide it by 2

ANSWERED AT 29/03/2020 - 06:14 PM

QUESTION POSTED AT 29/03/2020 - 06:14 PM

14.00-6.00=8.00 if the cashier gave her 6.00 then she spent at least 8.00

ANSWERED AT 29/03/2020 - 04:33 PM

QUESTION POSTED AT 29/03/2020 - 04:33 PM

**Answer**

**I got D) 2 on USATestprep **

ANSWERED AT 28/03/2020 - 12:58 PM

QUESTION POSTED AT 28/03/2020 - 12:58 PM

If A(x', y') & B(x",y") the the distance AB is given by the following formula:

AB =√[(x"-x')² + (y"-y')²]

Plug into the above with A(4,5) and B(-4,11).

AB =√[(-4-4)²+(11-5)²] =√(-8)²+(6)² = √(64) + (36) =√100 = 10

AB =√[(x"-x')² + (y"-y')²]

Plug into the above with A(4,5) and B(-4,11).

AB =√[(-4-4)²+(11-5)²] =√(-8)²+(6)² = √(64) + (36) =√100 = 10

ANSWERED AT 28/03/2020 - 12:55 PM

QUESTION POSTED AT 28/03/2020 - 12:55 PM

Is there some type of image for this?

ANSWERED AT 28/03/2020 - 12:55 PM

QUESTION POSTED AT 28/03/2020 - 12:55 PM

It helps you determine the characteristics of the plot/graph. I am not sure so it is your choose.

ANSWERED AT 28/03/2020 - 12:54 PM

QUESTION POSTED AT 28/03/2020 - 12:54 PM

**Answer:**

**C) Horizontal compression **

**Step-by-step explanation:**

Since, if y = f(x) is a function,

Then y = a f(x) gives a **vertical stretch** if **a > 1** and gives a **vertical compression** if **0 < a < 1.**

Also, y = f(bx) gives a **horizontal stretch** when** 0 < b < 1** and gives a **horizontal compression** if **b > 1**.

Here,

The given parent function is,

f(x) = 2x

And, 3 > 1

Thus, by the above statements,

f(3x) will give a horizontal compression.

Hence, **Option C is correct.**

ANSWERED AT 28/03/2020 - 12:51 PM

QUESTION POSTED AT 28/03/2020 - 12:51 PM

ANSWERED AT 28/03/2020 - 12:50 PM

QUESTION POSTED AT 28/03/2020 - 12:50 PM

Three solutions are: (2,14) (1,5) (3, 23)

ANSWERED AT 28/03/2020 - 12:44 PM

QUESTION POSTED AT 28/03/2020 - 12:44 PM

Http://worldpopulationreview.com/states/florida-population/

http://worldpopulationreview.com/states/georgia-population/

http://worldpopulationreview.com/states/georgia-population/

ANSWERED AT 28/03/2020 - 12:42 PM

QUESTION POSTED AT 28/03/2020 - 12:42 PM

Its a negative number dude

ANSWERED AT 28/03/2020 - 12:36 PM

QUESTION POSTED AT 28/03/2020 - 12:36 PM

Choice A. Work done below:

4x-1=5x-8 ( Set the opposite sides equal to each other).

4x-5x-1=-8 (Subtract 5x on both sides)

-x-1=-8 (Combine like terms)

-x=-8+1( Add 1 on both sides)

-x=-7 (Now since you have a negative sign on both sides you can cancel them)

x=7 ( Making that as your answer!!)

4x-1=5x-8 ( Set the opposite sides equal to each other).

4x-5x-1=-8 (Subtract 5x on both sides)

-x-1=-8 (Combine like terms)

-x=-8+1( Add 1 on both sides)

-x=-7 (Now since you have a negative sign on both sides you can cancel them)

x=7 ( Making that as your answer!!)

ANSWERED AT 28/03/2020 - 12:33 PM

QUESTION POSTED AT 28/03/2020 - 12:33 PM

401.45 is the answer

ANSWERED AT 28/03/2020 - 12:33 PM

QUESTION POSTED AT 28/03/2020 - 12:33 PM

Obtuse(sorry I can't find the other one)

ANSWERED AT 28/03/2020 - 12:29 PM

QUESTION POSTED AT 28/03/2020 - 12:29 PM

**Answer:**

Height of the dam is 45.45 meters.

**Step-by-step explanation:**

From the attached figure, AB is the height of dam NM is Scarlett's height. We have to find the height of the dam. NM = CB = 1.65 m

Using trigonometric equations as:

**AC = 43.8 m**

**So, the height of the dam is AC + CB = 43.8 m + 1.65 m = 45.45 m**

**Hence, the height of the dam is 45.45 meter.**

ANSWERED AT 28/03/2020 - 12:28 PM

QUESTION POSTED AT 28/03/2020 - 12:28 PM

Since the first term is -5 and the difference is 6 so a2=1,a3=7,a4=13,a5=19. Hope that helped. if you have any questions regarding how I got the values, feel free to ask. :')

ANSWERED AT 28/03/2020 - 12:28 PM

QUESTION POSTED AT 28/03/2020 - 12:28 PM

v(x)=(s/t)

= (3x - 6) / (-3x+6)

= [3(x-2)] / [-3(x-2)] --> 3 is factored out

= 1/-1 ---> common terms are cancelled out.

= -1 ---> This is the
simplified formula.

To find the domain, we equate the denominator to 0.

-3x+6 = 0

3x = 6

x = 2

Domain: all values except 2.

w(x)=(t/s)(x)

= (-3x+6)x / (3x-6)

= [-3x(x-2)] / [3(x-2)] --> 3 is factored out

= -x --> The common terms are cancelled out. This is the simplified formula.

Solving for domain:

3x-6 = 0

3x = 6

x = 2

Domain: all values except 2.

ANSWERED AT 28/03/2020 - 12:27 PM

QUESTION POSTED AT 28/03/2020 - 12:27 PM