Mathematics High School

simple 9th grade math

Answers

Answer 1

Answer:

-1078

Step-by-step explanation:

To find the nth term in an arithmetic sequence we use the following formula

aₙ=a₁+(n-1)*d

Where a₁ is the first time, and d is the common difference (in this case -20)

So we have

2+(55-1)*-20

2+(54)*-20

2-1080

-1078

Related Questions

what is (4x - 4) + (2x + 2)? (no direct answer.)

Answers

Answer:

6x -2

Step-by-step explanation:

(4x - 4) + (2x + 2)

4x + 2x = 6x

-4 + 2 = 2

6x - 2

simplify each expression 6X + 2x

Answers

8x
Hope that helps
......

which most likely indicates a chemical change has occurred?

Answers

The answer is the first one

what is the slope of this equation, v=3x+60

Answers

The slope is 3.

In y=mx+b, the number before x (or m) is the slope.

Answer:

slope=3

Step-by-step explanation:

A bake sale has 5 brownies for sale. Each brownie was cut into 4 slices. Each slice was sold for $7. What was the total amount earned for the sale of all the brownies?

Answers

Answer:

140

Step-by-step explanation:

5 times 4 is 20 which is the amount of browiners 20 times 7 is 140

Answer:

140$

Step-by-step explanation:

muliplication

4x5=20

20x7=140

find the scale factor

Answers

2 because the one side doubled and what happens to 1 side happens to them all, so 2

Answer:

2 is ur answer.

hope it helps you.

Which measurement is shorter?
800 centimeters
9 meters

Answers

Answer:

800cm.

Step-by-step explanation: 800cm is equal to 8 meters.

Answer:

800 centimeters is shorter.

Step-by-step explanation:

Find the slope of the line from a graph. Will give brainliest!!!

Answers

Answer:

2/1 or 2

Step-by-step explanation:

to find the slope you have to calculate the rise over run, do this by picking two spots on the line that go thourgh the corner of a square. then count the amount up the is your rise then the lateral movement, the is your run.

this means the answer is 2/1 that can be simplified to 2.

Which represents the decimal 0.071
A. 71 tenths
B. 71 hundredths
C. 71 thousandths
D. 71 Ten thousandths

Answers

Answer:

c 71 thousandths

Step-by-step explanation:

6.6+1.3x-5.2x(less than or equal to) 14.4 plssss help omg

Answers

So here is the answer and the steps:

Describe how each graph is obtained from the graph of y= f(x).

(a) y = f(x – 2)

Can somebody help telling what does it mean? what does it want us to do?

Answers

Answer:

see explanation

Step-by-step explanation:

Give the graph of y = f(x) then y = f(x + a) represents a horizontal translation of y = f(x)

• If x > 0 then a shift to the left of a units

• If x < 0 then a shift to the right of a units

Thus

y = f(x - 2) is the graph of y = f(x) translated 2 units right

Ben wants to buy a guitar. The regular price of the guitar is $329.99. The sale price of the guitar is 25% off of the regular price. What is the sale price of the guitar?

Answers

$247.49 because 329.99 minus 25 percent gives that amount

what's the opposite of -4

Answers

Answer:

Step-by-step explanation:

It's a opposite of -4 so the opposite would be 4

Answer:

Step-by-step explanation:

The opposite of -4 is 4

In addition

The absolute value of -4 is also 4

Therefore, the answer is 4.

I need help with this

Answers

Answer:

= Multiply 8 and 7

= Add 56 and 6

= Write 62 with a denominator of 7

Step-by-step explanation:

Which sequence of transformations on preimage ∆ABC will NOT produce the image ∆A'B'C'?

A.
reflection across the line y = -x followed by a rotation 180° counterclockwise about the origin
B.
reflection across the y-axis followed by a rotation 90° clockwise about the origin
C.
reflection across the line y = x
D.
rotation 180° clockwise about the origin followed by a reflection across the line y = -x
E.
reflection across the x-axis followed by a reflection across the y-axis

Answers

Answer:

Step-by-step explanation:

8x(x+1)=(4x-3)(2x+1)

Answers

Answer:

(3x+1)(2x+1)

Step-by-step explanation:

Answer:

[tex]x2[/tex]=[tex]\frac{5-\sqrt{113} }{8} , x2 = \frac{5+\sqrt{113} }{8}[/tex]

Step-by-step explanation:

hope this help and if you can give me brainliest

Find value of x. Leave in simplest radical form

Answers

Answer:

blah blah blah blah

Step-by-step explanation:

karma :)

Answer:

[tex]x = 6[/tex]

Step-by-step explanation:

[tex] \sin(45) = \frac{opposite}{hypotenuse} [/tex]

[tex] \sin(45) = \frac{3 \sqrt{2} }{x} [/tex]

[tex](x) \sin(45) = \frac{3 \sqrt{2} }{x} (x)[/tex]

[tex](x) \sin(45) = 3 \sqrt{2} [/tex]

[tex] \frac{(x) \sin(45) }{ \sin(45) } = \frac{3 \sqrt{2} }{ \sin(45) } [/tex]

[tex]x = \frac{3 \sqrt{2} }{ \sin(45) } [/tex]

[tex]x = 6[/tex]

what is this 2x-5+22=?

Answers

Answer: 2x+17

Step-by-step explanation: add -5 and 22

Answer:[tex]\boxed{\boxed{\sf{2x+17}}}[/tex]Solution Steps:

______________________________

1.) Add −5 and 22:[tex]-5+22=17[/tex]

- You could also solve this by flipping the numbers around and subtracting 22 - 5, Which still gives you 17.

So your answer is [tex]\bold{(2x+17)}[/tex].

______________________________

Which of the following is the least

Answers

Answer:

-512 is the least number

-512 is the least

right answer

3x2 · 2x5 whats the answer please twenty five points to show work

Answers

Answer:

Step-by-step explanation:

3x2=6

2x5=10

6x10=60

????

Tonka weighs 100 pounds. He is loading a freight elevator with
identical 50 pound boxes. The elevator can carry no more than
2000 pounds. How many boxes can Tonka load onto the elevator?
50x + 100 = 2000
O 50x - 100 = 2000
100x + 50 = 2000
100x - 50 = 2000

Answers

38 boxes

Step-by-step explanation:

In a pack of candies, Maria found that for every three blue candies, there were five red ones. Identify the correct list of ratios that compares the red candies to the blue ones.

Answers

Answer:

5/3; 5 to 3; 5:3

Step-by-step explanation:

Answer:

5/3; 5 to 3; 5:3

Step-by-step explanation:

Evaluate each expression if a = 6, b=3, and c=2.

1. 6+c
2. a-b
3. 2 c
4. a-1
5. c+4
6. a/b
7. b÷3
8. ab

choices:
8
5
18
1
6
4
3
2

Answers

1. 8
2. 3
3. 6
4. 5
5. 6
6. 2
7. 1
8. 18

1. 8
2. 3
3. 4
4. 5
5. 6
6. 2
7. 1
8. 18

can someone please help me? it would mean so much to me. thanks a lot!

Answers

Answer:

Maybe -3

Step-by-step explanation:

I am not 100% sure but it is better than nothing,

since 3+3=6 I think after 3 is 6, and after 6 is 9. I think that because the more right the line goes you add 3 to every move. So therefore, 3-3=0, and 0-3= -3

Hope this helps. Also, I hope I gave you the correct answer.

Kim picked 250 pounds of pears yesterday and 287 pounds of pears today. What is the percentage increase of

amount of peas picked by Rim

Answers

Given:

Kim picked 250 pounds of pears yesterday and 287 pounds of pears today.

To find:

The percentage increase of amount of pears picked by Kim.

Solution:

We know that,

[tex]\%\text{ increase}=\dfrac{\text{New value - Initial value}}{\text{Initial value}}\times 100[/tex]

[tex]\%\text{ increase}=\dfrac{287-250}{250}\times 100[/tex]

[tex]\%\text{ increase}=\dfrac{37}{25}\times 10[/tex]

[tex]\%\text{ increase}=\dfrac{370}{25}[/tex]

[tex]\%\text{ increase}=14.8[/tex]

Therefore, the percentage increase of amount of pears picked by Kim is 14.8%.

how do you figure out what the y=mx+b of a equation

Answers

Answer:

y is your answer

m is your rise/run

x is there for x

and b is your negative or positive y-intercept

Step-by-step explanation:

It’s Y hopefully this helps you!!

HELP ASAP PLEASE.

What are the coordinates of point A?

A. (2, 4)
B. ) (1.7, 3.8)

C. (6.6, 1.7)

D. (3.8, 1.7)

Answers

the answer is B (1.7,3.8)

Answer:

Step-by-step explanation:

Point A is found at (1.7, 3.8)

What is the y-intercept of the line?
110
A
2
B
3
000
-7
-6
D

Answers

the correct answer is 3

What number is missing in this sequence? 1, 2, 4, 7, 11, ___, 22

Answers

Answer:

Step-by-step explanation:

andrew sold $50 less than sarah did and evan sold $25 more than Sarah. these quantities can be communicated symbolically. if x= the amount that sarah sold, which of these represents the amount sold by the other two people?

A. andrew=50-x, Evan= x+25
B. Andrew=x-50, Evan=x+25
C. andrew=x-50, evan=25x
D. andrew=50-x, evan=25x

Answers

The answer is I think b because it has x-50 and it said Andrew sold less that Sarah so its subtracting

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