HELP this is important!

Step-by-step explanation:

⇒12)It is an arithmetic sequence.

   d=2-1=3-2=4-3=1

    a(n) = a +(n-1)d

    a(n) = 1+(n-1)1

The next three terms:

a(6) = 1+(6-1)1=6

a(7) = 1+(7-1)1=7

a(8) = 1+(8-1)1=8

⇒13)It is an arithmetic sequence.

   d=0-3=-3-0=-6+3=-3

    a(n) = a +(n-1)d

    a(n) = 3+(n-1)-3

The next three terms:

a(5) = 3+(5-1)-3=-9

a(6) = 3+(6-1)-3=-12

a(7) = 3+(7-1)-3=-15

⇒14)It is not an arithmetic sequence.

⇒15) a(50) = 10 +(50-1)5

                  =255

I hope this helps

Answer:

i dont get it

Step-by-step explanation:

9514 1404 393

Answer:

  Negative 5 x + 1 = negative 5 x + 1

Step-by-step explanation:

The equation that has the left side identical to the right side will be true for all values of x. It will have an infinite number of solutions.

Answer:

A

Step-by-step explanation:

Answer:

2.1349 x10^2

Step-by-step explanation:

i used a standard form calculator

Answer:

12388

Step-by-step explanation:

Used calculator

Answer:

18°

Step-by-step explanation:

let the angle be x , then its complement is 90 - x

we are told the angle is [tex]\frac{1}{4}[/tex] of its complement , then

x = [tex]\frac{1}{4}[/tex] (90 - x) ← multiply both sides by 4 to clear the fraction

4x = 90 - x ( add x to both sides )

5x = 90 ( divide both sides by 5 )

x = 18

then the angle is 18° and its complement is 90° - 18° = 72°

Answer:

The angles measure 18° and 72°.

Step-by-step explanation:

81 and 9 is not correct for this problem.

9 is not 1/4 of 81, so 9 and 81 cannot be the answer, although it is true that angles measuring 9° and 81° are complementary since 9 + 81 = 90.

You need to know what complementary angles are.

Definition:

Two angles are complementary if the sum of their measures is 90°.

Each angle is said to be the complement of the other angle.

You have two complementary angles, both of whose measures are unknown.

Call the smaller measure x and the larger measure y.

Since the angles are complementary, the sum of their measures is 90°.

x + y = 90

The measure of one angle is 1/4 the measure of the other angle.

If the smaller angle's measure is 1/4 of the larger angle's measure, then the larger angle's measure is 4 times the smaller angle's measure.

That means that y = 4x.

You have two equations and two unknowns:

x + y = 90

y = 4x

This is a system of equations. We will solve it using the substitution method.

Since y = 4x, where you see y in the first equation, substitute it with 4x

x + y = 90

x + 4x = 90

5x = 90

Divide both sides by 5.

x = 18   <---- smaller angle

y = 4x = 4(18) = 72   <----- larger angle

Answer: The angles measure 18° and 72°.

Check: Do the measures 18 and 72 add to 90?

18 + 72 = 90    Yes.

Is the measure of the smaller angle 1/4 the measure of the larger angle?

18/72 = 9/36 = 1/4    Yes.

18 and 72 is the correct answer.

Answer:

height = 8/3

Step-by-step explanation

I'm assuming that this is a question to a triangle. So since an area of a triangle is 12 you solve by the formula 1/2(base)(height). You would solve for height so your equation would look smth like this: 12 = 1/2(base)(height). So you would end up with 24/8 which would simplify to 8/3.

Answer:

y = 3/4x-2

Step-by-step explanation:

Answer:

Y=3/4x-2

Step-by-step explanation:

Answer:

12x³ +22x²+2x-8

Step-by-step explanation:

12x³ +22x²+2x-8

Answer:

C

Step-by-step explanation:

if 500 students were at the assembly, then the number of students who were wearing spirit wear is 200 students.

Since we know that:

4/10 of every student is wearing spirit wear.

The total number of students was 500

Hence,

We can express this as:

4/10 x 500

=4 x 50

= 200

Read more about percentages here:

https://brainly.com/question/24304697

Answer:

x = -1

Step-by-step explanation:

10x + 8 = 5x + 3

5x = 3 - 8

x = -1

Answer:

The Square Root Calculator is used to find the square root of the number you enter. Square Root. In mathematics, a square root of a number x is a number r such that r 2 = x. For example: 1. The square root of 25 is 5 because 5 2 = 25. 3. The square root of 2 is 1.41421356237 approximately. 3. The square root of pi (π) is 1.77245385102 ...

Step-by-step explanation:

Answer:

mean-76.3285

median-79

mode-95

Step-by-step explanation:

mean-

Answer:

7.1 and 7.2

Step-by-step explanation:

if you look on the number line 51 is in between what two numbers

Answer:

I am pretty certian it is A

Step-by-step explanation:

You add the x to 25.50 because it is unknown how many games he will buy and add the one time pay of 4,500 to enter the service/company

So it is y= 25.50x + 45

Answer: The answer is A

I hope I helped u!

Answer: B. 7 and 10 ft

Step-by-step explanation:

The first thing to do is to look at the triangle’s angles. One of them is missing right? So you need to find that missing angle. All the angles in a triangle add up to 180 degrees. Therefore you need to add 68 and 47. Your total must be subtracted by 180.

Your problem will look like this

68+47=115

180-115=65

Your missing angle is 65The angle correspond to the sides. You need to look at the opposite of the angle to figure out the number of the side.

For example Angle A opposite = 7

Angle B opposite is 10

notice that Angle B degree is 68 which is the largest degree. And Angle A degree is 47 which is the smallest degree.

The largest degree will always be equal to the largest side

The smallest degree will equal to the smallest side

Answer:

x=-2

Step-by-step explanation:

just plug in random numbers until you get your answer, it works for me

sorry if wrong (answer 23)

Answer:

If you take a vertical line and place it on the graph, then no matter where on the graph you place the vertical line, the graph should only cross the vertical line once. If so, then it is a vertical line.

If not, then it isn't one.

Step-by-step explanation:

Answer:

x= 4 2/3 OR 14/3 OR 4.6... –– 4 2/3 and 4.6... are the simplest form.

Step-by-step explanation:

Your original equation is -192 = -6 (6x - 4):

1. -192 = -6 (6x - 4)

Use distributive property and multiply: -6 x 6x = -36x and -6 x -4 = 24:

2. -192 = -36x + 24

We now move the +24 onto the other side of the equation, -192. Add 24 onto -192 and since we're moving the 24 on the left side of the equation, 24 will removed, so -24 on the right side of the equation:

3. -192 + 24 = -36x + 24 - 24

Divide both sides of the equations by -36 to get "x" by itself:

4. -168 / -36 = -36x / -36

Simplify the fraction of 24/36 by 12:

5. 4 24/36 = 4 2/3 or 14/3 or 4.6... = x

4 2/3, 14/3, 4.6... = x

Let y = 0

0 = 2x^2 + 7x + 3

Using the quadratic formula, we get x = -3 and x = -1/2.

Answer:

Answer and Work is in photo

Step-by-step explanation:

Answer:

x-1/2 is in fact a factor of 8x3-4x2+10x-5 so you are correct

Step-by-step explanation:

The equation can be simplified into (2x-1)(4x2+5) and 1/2 is one of the factors

Answer:

the answer is 12 inches

every inche equals 15 feet from 30/2 then divide it by the total 180/15 which equals 12

Answer:

C. 12 inches

Step-by-step explanation:

The height of the scale model in inches is 12 .

Answer: 7.5

Step-by-step explanation:

Because it would be 25/100 times 30 because 25% and then it would be simplified inti 1/4 times 30 then it would be 7.5.

Answer:

-1/2

Step-by-step explanation:

-1/2

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