Mathematics High School

Evaluate:
Σ18/1 (5n– 4) = [? ]

Evaluate:18/1 (5n 4) = [? ]

Answers

Answer 1

Basically, you are going to evaluate 5n - 4 from n = 1 to n = 18. Don't forget to add as you evaluate.

I will get you started.

Let n = 1 and then n = 2.

5(1) - 4 + 5(2) - 4 + the rest

5 - 4 + 10 - 4 + the rest

1 + 6 + the rest

7 + the rest

Just continue the pattern. You will then let n be 3, 4, 5, etc all the way to 18.

Related Questions


Work out the area of this quarter circle of radius 8 cm.
Give your answer in terms of pie .

Answers

Answer:

[tex] 16\pi \: {cm}^{2} [/tex]

Step-by-step explanation:

[tex]A = \frac{90 \degree}{360 \degree} \times \pi ({8})^{2} \\ \\ A = \frac{1}{4} \times \pi \times 64 \\ \\ A = \frac{1}{4} \times 64\pi \\ \\ A =16\pi \: {cm}^{2} [/tex]

Torrence wants to remodel apartment . The first thing he is Going to do is replace the floors in the living space and kitchen .

Answers

I don’t see what u need help w.

What is the probability of scoring more than 3

Answers

Answer:

3 what?

Step-by-step explanation:

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Answers

9514 1404 393

Answer:

x ≥ 754 -6my -x

Step-by-step explanation:

You have to realize that the absolute value function will change the sign of its argument only if that argument is negative.

108. |x -7| = x -7 . . . . . true for x-7≥0

  x ≥ 7 . . . . makes the statement true

__

1a. When m < 9, the value 6m is less than 54, so 6m-54 < 0. That means the absolute value function changes the sign of its argument:

  54 -6m . . . . . simplified form for m < 9

__

1b. |y -x| = y -x . . . when y > x, the argument of the absolute value is positive

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Answers

Answer:

A=59 because it is opposite of E

B= 39 because 180-141=39

C=82 because 180-39-59=82

Answer:

Step-by-step explanation:

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Answers

Answer:

I think the answer would be 60

Hope it was helpful .

Step-by-step explanation:

400 × 0.15 = 60

Evaluate: (-2)5

10
32
-10
-32

Answers

( - 2 ) 5
Answer ( -10)

Answer:

-32

Step-by-step explanation:

-2 x -2 x -2 x -2 x -2 = -32

You are entering a fitness competition at school. Students train for several weeks to win prizes for different competition. 2) Last years winner set a school record by completing 37 sit-ups. You need to find out how many weeks you need to train to beat this record. Part B: Write the inequality and graph the solution. How many weeks will it take you to break the record?
​

Answers

Answer:

first you divide 2by 37 that will be the answer

The number line represents 1 unit. What is the distance from 0 to point C on the number line?
A) 5/2 units
B) 4/5 units
C) 3/10 units D) 4/10

Answers

4/10 Units. The number line is cut equally into 10 pieces. If you count correctly, you’ll find out point C is on the 4th spot (I couldn’t remember its name sorry)

please help i don't know what to do​

Answers

Answer:

The answer is A .

Step-by-step explanation:

Hope it helps u , good luck ^.^

Samantha made goodie bags for Valentines day. They were filled with choclates and candy.The cost of the chochlate was $2.50 per pound and the cost of the candy was $3.oo per pound. Samantha bought 15 pounds of choclate and candy for a total of 40 dollars. How much did Samantha buy

Answers

Answer:

We bought 10 Pounds of Chocolate, and 5 Pounds of Candy.

Step-by-step explanation:

Hey!

==================================================================

Let's make a chart!

                 Lbs     Price  Cost

Chocolate | x      | 2.50 | 2.50x

Candy       | 15-x | 3.00  | 3.00(15-x)

Equation:

2.50x + 3.00(15-x) = 40

--------------------------------------------------------------------------------------------------------------

⇒ 2.50x + 3.00(15-x) = 40

-Distribute 3 over 15-x

⇒ 2.50x + 45 - 3x =40

-Combine Like Terms

⇒ -0.5x + 45 = 40

-Subtract 45 from both sides.

⇒ -0.5x + 45 = 40

            -45   -45

--------------------------

⇒ -0.5x = -5

-Divide by -0.5 on both sides

⇒ -0.5x/-0.5 = -5/-0.5

⇒ x = 10

That means we bought 10 Pounds of Chocolate.

---------------------------------------------------------------------------------------------------------------Since Candy was 15-x, we can Substitute 10 as x, and Solve:

⇒ 15 - 10

⇒ 5

That means we bought 5 Pounds of Candy.

--------------------------------------------------------------------------------------------------------------

We bought 10 Pounds of Chocolate, and 5 Pounds of Candy.

==================================================================

Hope I Helped, Feel free to ask any questions to clarify :)

Have a great day!

More Love, More Peace, Less Hate.

       -Aadi x

7. The table shows the cost for ordering a certain number of pieces of chicken.
What is the value of x if the cost is proportional to the number of chicken
pieces ordered?
Pieces of Chicken Ordered
2
3
4
6
Cost
$3.00
$4.50
$6.00
A. $4.00
B. $9.00
C. $1.50
D. $6.67

Answers

A should be the right answer

Help.........................

Answers

Same I say D is the answer too

hello please help thanks

Answers

Answer: transpiration

Step-by-step explanation:

Answer: precipitation

Step-by-step explanation: since that’s when something is fallen from the sky such as rain snow or hail

Bonus: Jenny decides to plant all tomato plants in her garden. When full grown, the plants will need a 2.5 ft by 2.5 ft
space. How many tomato plants can Jenny plant in her garden? It packages of seeds come with 20 seeds and cost $4.00
each, how much will she spend in seeds?

Answers

A. 2.5 X 2.5 = 6.25
Jenny can plant 6.25 tomato plants

B. $80.00
She will spend $80.00 on seeds.

find the mean of the data set down below. 7, -3, 6, -2, 8, 7, -4, 5, 3

Answers

The mean is the average of the numbers so the mean = 3

The volume of a rectangular prism, in cubic inches, is given by the expression
x^3+3x^2-4x+7. The volume of the smaller prism is given by the expression
5x^3-6x^2-6x-17. How much great is the volume of the larger rectangular prism is than the smaller prism?

Answers

Answer:

-4x³ + 9x² + 2x + 24

Step-by-step explanation:

To find how much great is the volume of the larger rectangular prism  than the smaller prism, we need to subtract

Volume of larger rectangular prism - Volume of smaller prism =

= x³ + 3x² - 4x + 7 - (5x³ - 6x² - 6x - 17)

To remove the parenthesis,multiply each term of the smaller prism by (-1)

= x³ + 3x²- 4x + 7 - 5x³ + 6x²  + 6x + 17

= x³  -5x³ + 3x² + 6x² - 4x + 6x +7 + 17      {Combine like terms}

= -4x³ + 9x² + 2x + 24

HELP ASAP!!!
What is the surface area of a number cube on which each edge has a length of 11 millimeters? (Hint: On a cube, the length, width, and height have the same measure.)

726 mm2
1331 mm2
242 mm2
132 mm2

Answers

Answer:

Its 726 mmSQ

Step-by-step explanation:

the first responce is just doing for points

Directions: Solve for x.
1.

Answers

Answer:

x = 7

Step-by-step explanation:

28 - 21 = 7

Find the product
Give your answer in simplest form.
3/5x12



Answers

The origainal answer is 36/5 but the simplest form is 7 1/5
it’s 7 1/5 in simplest form

Two similar cylinders have heights of 3 cm and 6 cm respectively. If the volume of the smaller cylinder is 30 cm3, find the volume of the larger cylinder.Required to answer. Single line text.​

Answers

Answer:

the ans is

Step-by-step explanation:

V=πr2h=π·32·6≈169.646

5. Find the value of x.
B
90°
9
А

Answers

The x value is b. But can u post a picture of it so I can see it plz
X is the value of b

Select the statement that describes this expression: 8 + fraction 1 over 2 x (6 − 2) − 1. (2 points)


8 more than half the difference of 2 and 1, and then subtract 6

Add 8 to half the difference of 6 and 2, then subtract 1

The sum of 8 and fraction 1 over 2 times 6 plus 2 minus 1

1 less than half of 6 plus the sum o

Answers

Answer:

Add 8 to half the difference of 6 and 2, then subtract 1.

Answer: Add 8 to half the difference of 6 and 2, then subtract 1

Step-by-step explanation: 8 + 1/2(6 - 2) - 1

Therefore, the statement that describes this expression from the options given correctly is :

Add 8 to half the difference of 6 and 2, then subtract 1

                         

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19. y = 3x? - 12x

Find the discrimanite of each equation.Then,determine the number of solution

need help with this step by step please and thank you

Answers

Answer: y=−9x  

x=  y/9

​  

 

Step-by-step explanation:

Help fill in the empty boxes

Answers

Answer:

Hey mate........

Step-by-step explanation:

This is ur answer.......

A = 6B = 10C = 18D = 33

Hope it helps!

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Read number 5 and help me out plz add an explanation

Answers

Answer:

the new values could be 3 and one half and 5 and one half.

Step-by-step explanation:

This is correct because they are asking for a new one. Also, one that has 3 as a difference in between.

PLEASE LOOK AT ATTACTHMENT!!!

2x2 – 5xy – 6 + 4x2 – 3xy + 1 – x2y

Answers

Answer:

− x 2 y − 8 x y + 6 x 2 −5

Step-by-step explanation:

was i support to simplify? bc that's what i did

A triangle has an area of 230.86 square inches.the height of the triangle is 23.8 inches .what is the length of the base of the Triangle

Answers

Answer:

The length of the base of the triangle is 19.4 inches.

A carver begins work on the following block of granite. What is the volume of the granite? Be sure to include units. ​

Answers

Answer: volume of rectangular prism is calculated by length x width x height. So 10 x 5 x 20 = 1000 centimeter cubes

Step-by-step explanation:

Write an expression that represents the
perimeter of this picture frame.

Answers

Answer:

6x+2

Step-by-step explanation:

The perimeter is all of the sides added together.

We know that in a rectangle, sides that are parallel to each other are the same.

So, to find the expression that represents the perimeter, you have to multiply 2x+1 by 2 and x by 2 and add both of those together.

(2*(2x+1))+(2*(x))

(4x+2)+(2x)

4x+2+2x

6x+2

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