can someone help pls????
detail for me as well​

Can Someone Help Pls????detail For Me As Well

Answers

Answer 1

Step-by-step explanation:

the easy straight forward method is to simply sum up the 5 terms.

you know that this symbol just means "sum", right ?

and that the index variable is "running" from 1 to 5.

so, you have to sum up

3×1 + 3×2 + 3×3 + 3×4 + 3×5 = 3 + 6 + 9 + 12 + 15 = 45

now, if you want it done via a summary formula to add the first n terms of an arithmetic sequence, like in this case

a1 = 3

an = an-1 + 3 = a1×n = 3n

then

the sum of the first n terms in an arithmetic sequence is (n/2)⋅(a₁+aₙ).

it simply means : first plus last term added up n/2 times.

why ?

because a1 + an = a2 + an-1 = a3 + an-2 = ...

we get n/2 times such part sums.

so, in our case, n = 5, and we get

(3 + 3×5)×5/2 = (3 + 15)×5/2 = 18×5/2 = 9×5 = 45

Answer 2

Answer:

∑ (i = 1 to 5) (3·i)

= 3·∑ (i = 1 to 5) (i)

= 3·(1 + 2 + 3 + 4 + 5)

= 3·15

= 45


Related Questions

Need help with this problem √-5

Answers

Answer=2.2360

2 |5.00 00 00
+2 | 4
42 | 100
+2 |-84
443|1600
+3 | -1329
4466|27100
+6 | -26796
44720 | 30400
+0 | 00000

Therefore the value of root 5 is

√5 = 2.2360…

Or

√5 ≈ 2.24

Why is the denominator of each fraction 12?
Pls help me

Answers

Answer: because it is out of 12

Step-by-step explanation:

Because 3+4+5 equals 12.

3. For items 3a-3d, choose Yes or No to
tell if the digit in the hundreds place
is to the value of the digit in the
thousands place.
3a. 8,556
3b. 6,855
3c. 5,568
3d. 5,656
Yes
Yes
Yes
Yes
No
No
No
O No

Answers

The Yes or No to for digit in the hundreds place is to the value of the digit in the thousands place are-

3a. 8,556 ; No ,    3b. 6,855 ; No ,  3c. 5,568 ; Yes     , 3d. 5,656 ; No

What is termed as the place value system?Our a whole number system is built around place value. This is a system where the value of a number is determined by the position of its digits. The numbers 42,316 and 61,432 differ so because digits are in various positions.

As per the place value system,

Thousand    Hundred    Tens    Ones

3a. 8,556

Thousand value of number = 8000

Hundred value of number = 500

1/10 × 8000

800 ≠ 500

No, the digit at hundreds place is not 1/10 of the digit at thousand place.

3b. 6,855

Thousand value of number = 6000

Hundred value of number = 800

1/10 × 6000

600 ≠ 800

No, the digit at hundreds place is not 1/10 of the digit at thousand place.

3c. 5,568

Thousand value of number = 5000

Hundred value of number = 500

1/10 × 5000

500 = 500

Yes, the digit at hundreds place is 1/10 of the digit at thousand place.

3d. 5,656

Thousand value of number = 5000

Hundred value of number = 600

1/10 × 5000

500 ≠ 600

No, the digit at hundreds place is not 1/10 of the digit at thousand place.

Thus, the condition of yes and no for the given number are obtained.

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The complete question is-

3. For items 3a-3d,

Choose yes or no to tell if the digit in the hundreds place is 1/10 the value of the digit in the thousand place.

thousands place.

3a. 8,556

3b. 6,855

3c. 5,568

3d. 5,656

Find the area of ABCD with vertices A(-5,2), B(-3,2), C(-2,-5),
D(-4,-5).

Answers

Answer:

14 units²

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

Given

Vertices A(-5,2), B(-3,2), C(-2,-5), D(-4,-5)

To find

The area of ABCD

Solution

We can observe that:

1. AB and CD are horizontal segments, since both endpoints have same y-coordinates:

A and B have y = 2, C and D have y = - 5

2. AB and CD are of same length:

AB = - 3 - (-5) = 2,CD = - 2 - (-4) = 2.

It means the ABCD is a parallelogram, since two opposite sides are parallel and of same length.

The area of parallelogram is:

A = bh, where b- base length, h - height

We know the length of the base, it is found above, 2 units.

The height is the difference of y- coordinates:

h = 2 - (-5) = 7

The area is:

A = 2*7 = 14 units²

1-2p=-4p-9 solve equation

Answers

Answer: p= -5

Step-by-step explanation:

Answer:

-5

Step-by-step explanation:

carry the one over to the right side and subtract it to get an amount of -10.

then carry the -4p to the left and add it with -2p. which comes out to be 2p

now the equation reads as 2p=-10

continue to divide 2 to get p alone and divide -10 by 2 as well.

now p=-5 because a negative divided by a postive is a negative.

An item is regularly priced at $45. It is on sale for 60% off the regular price. How much (in dollars) is discounted from the regular price?​

Answers

Answer:

$27.00 is discounted from the price.

Step-by-step explanation:

60% means per hundred

60/100 when you divide by 100 you move the decimal 2 places to the left

.6 x 45 = 27

Given m n, find the value of x and y

Answers

Answer:

x=24

y=58

Step-by-step explanation:

5x+20=6x-4

5x-6x=-20-4

-x=-24 /:(-1)

x=24

5×24+20+y-18=180

122+y=180

y=180-122

y=58

Tina's taco truck sold 3 times as many veggie tacos in August than in September. She sold twice as many in September than in October. She sold 927 veggie taco during the three months

Answers

The number of tacos sold in August, September and October is 103, 206, 618 respectively.

Let the number of veggie tacos sold by Tina in October be x

Then, number of veggie tacos sold in September is twice that of veggie tacos sold in october = 2x

Number of veggie tacos sold in August is thrice that of veggie tacos sold in September = 3 x 2x = 6x

Total veggie taco during the three months by Tina = 927

6x + 2x + x = 927

9x = 927

x = 927/9

x = 103

Tacos sold in August = 6x =  618

Tacos sold in September = 2x = 206

Tacos sold in October = x =103

Therefore, the number of tacos sold in August, September and October is 103, 206, 618 respectively.

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Regarding the search-and-replace features provided by the find and replace dialog box, what is not true?.

Answers

You cannot replace a type of formatting inside a cell with a different type of formatting.

Your search string is treated as a pattern by the dialog box, which then returns all records that do. Consider the case where you have a datasheet (a table or a query result) with details on clients, vendors, goods, and order dates. The find operation returns all occurrences of "mar" when you perform a search, along with any additional entries that meet the pattern you supplied.

The dialog box doesn't scan the full database; it simply searches one table at a time. You can search the table that supports a form if the dialog box is opened from within one.

For some features provided by the Find and Replace dialog box the search and replace feature can't accept the following condition.

That a user cannot replace a type of formatting inside a cell with a different type of formatting.

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7/3y = 21 solve for y simplify your answer as much as possible

Answers

Answer: y = 1/9

Step-by-step explanation:

7/3y=21

7= 21 x 3y

7/21 = 3y

1/3 = 3y

1/9 = y

how many squares whose sides are parallel to the axes and whose vertices have coordinates that are integers lie entirely within the region bounded by the line y

Answers

The answer is 8& that’s the answer

26
Write the time.
11 12
10
87

Answers

I think the time is either 7:30 or 6:30

Write an equation in standard form for the line that passes through the given points
(3,0) and (0, -2)

Answers

Equation of a line in the standard form that passes through the points (3, 0) and (0, -2) will be [y = (2/3)x - 2].

As per the question statement, a straight line passes through the points (3, 0) and (0, -2).

We are required to determine the equation of the above mentioned line in it's standard form.

To solve this question, we need to know the formula to write the standard equation of a line passing through two points (x₁, y₁) and (x₂, y₂) which goes as [tex][(y-y_{1})=\frac{(y_{2}-y_{1})}{(x_{2}-x_{1})}(x-x_{1})][/tex].

Here, let (x₁, y₁) be (3, 0) and (x₂, y₂) be (0, -2).

Therefore, equation of our concerned line passing through the two points (3, 0) and (0, -2), by substituting [(x₁, y₁) = (3, 0)] and [(x₂, y₂) = (0, -2)] in the above mentioned formula, will be [(y - 0) = {(-2 - 0)/0₂ - 3)}(x - 3)]

Or, [y = {(-2)/(-3)}(x -3)]

Or, [y = (2/3)(x - 3)]

Or, [y = (2/3)x - 2]

Equation: In mathematics, an equation is a statement that expresses the relation of equality between two expressions, by connecting them with the "equal to" sign (=).Line: In geometry, a line is an infinitely long one-dimensional object or shape with no width, depth, or curvature.

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Copyright © McGraw-Hill Edi
7. The table shows the options Zoe's mother
has for buying tickets to an adventure day
camp for Zoe and 5 of her friends. Which
option has the lesser cost per student
ticket? (Example 2)
Adventure Camp Tickets
Option
6-pack of Student Tickets
Individual Student Ticket
Cost ($)
126.00
21.50
8.

Answers

The option for 6-pack of student tickets will be of lesser cost than that of individual cost.

What is multiplication of two numbers?

Multiplication is a way of finding the product of two or more numbers. It is one of the basic mathematical operations, that we use in our day to day life.

Given, total number of students= 6

Cost of individual student ticket= $21.50

Therefore, total cost of buying tickets to an adventure day= $(6×21.5)= $129.00

Now, cost of 6-pack of student tickets= $126.00

Thus by comparing the two costs, we can see that the lesser option between the two is the 6-pack of student tickets by $(129-126)= $3

 

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Given a rectangle with the following dimensions: Area = 50 units Length = x + 10 units Width = x units Find the value of x.

Answers

Step-by-step explanation:

the area of a triangle is

length × width

in our case

(x + 10) × x = 50

x² + 10x = 50

x² + 10x - 50 = 0

the general solution to such a quadratic equation

ax² + bx + c = 0

is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case that is

x = (-10 ± sqrt(10² - 4×1×-50))/(2×1) =

= (-10 ± sqrt(100 + 200))/2 =

= (-10 ± sqrt(300))/2 = (-10 ± sqrt(100×3))/2 =

= -5 ± sqrt(100×3/4) = -5 ± sqrt(25×3) =

= -5 ± 5×sqrt(3)

x1 = -5 + 5×sqrt(3) = 3.660254038...

x2 = -5 - 5×sqrt(3) = -13.66025404...

x2 gives us negative values for length and width. that does not make any sense for actual lengths of objects.

so,

x = 3.660254038...

4. What does the ordered pair (0, 0) represent in this situation?​

Answers

they have sold no tickets and haven’t invested any money

(2 x 47) / (6 + 9) =
(6 +17) / 3 = =
(42 - 3)/7 =
(6 +22) / (47 - 21) =
(932) / (827) =
Bloque 2
Bloque2
Redondea a 2 decimales

Answers

6.26
7.66
5.57
1.07
1.12
The answer is 1.12 that’s the answer

The Jones family is having lasagna for dinner. Before dinner, 15/15 of the lasagna was in the pan. The family ate 10/15 of the lasagna.

What fraction of the lasagna was left in the pan after dinner? (PROVIDE SCREENSHOT TO SHOW HOW TO DO IT)

Answers

Answer:

5/15 of 1/3

Step-by-step explanation:

15/15-10/15=5/15

WILL GIVE BRAINLIST IF ANSWERED CORRECTLY!!

Answers

Answer: 9 units to the right and 5 units down

Step-by-step explanation:

1) Measure the length.

You can find that you can match point C with point W. Next find how much it goes to the right and left.

Right from (C->W): 9 squares

Down from (C->W): 5

2) Fill in the blank

9 units to the right and 5 units down

Answer:

ΔABC ≅ ΔNKW because when ΔABC is translated 9 units right and 5 units down, it results in the other triangle.

Step-by-step explanation:

The triangles are congruent as the measures of their corresponding sides and angles are the same.

To determine the translation of ΔABC to ΔNKW, find the change in the x and y values from one of the points of ΔABC to its corresponding point of ΔNKW.

Point C = (0, 0)Point W = (9, -5)

Therefore:

ΔABC ≅ ΔNKW because when ΔABC is translated 9 units right and 5 units down, it results in the other triangle.

can someone tell me how many cds in both columns combined be?

Answers

Answer:

2021= 700cds  2020=750cds

Step-by-step explanation:

Puedes ver como indica en el lado izquierdo que la barra de cds de el 2021 esta en la mitad de 800 y 600 que es igual a 700 cds en 2021

Y en la parte del 2020 se ve que este en la mitad de 800 y 700 considerando el calculo anterior por lo que daría 750 cds en 2020

Find the general form of an equation of the line through the point A that satisfies the given condition.

A( -4, 2)
a) parallel to the x-axis.

b) perpendicular to the x-axis.

Answers

The general form of equation a) y = 2, b) x = -4.

Here the point A = (-4,2)

a) we have to find the equation parallel to the x-axis

As a line should be parallel to x axis so it must pass from y-axis. As the coordinate of A is (-4, 2) so by this we get y = 2 and x = -4.

But we have to put the value of x as 0 and y = 2 then only we get an equation of a line parallel to x-axis.

So y = 2

which is parallel to x-axis

b) equation of a line perpendicular to the x-axis.

As a line should be perpendicular to x-axis, so line should pass form the x-axis and not with the y-axis. As point A is (-4. 2), so we have to take the value of x = -4 and y = 0. So we get an equation.

x = -4 is the general equation.

Therefore the general equation a) y =2 and b) x =-4.

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a rectangular tennis court has an area of 528 m^2. If the length is decreased by 1 m and the width is increased by 1 m, the area of the tennis court is increased by 16 m^2. Find the perimeter in metres. thanks

Answers

The perimeter of the rectangular tennis court is 96.7 m

How to solve an equation

An equation shows the relationship between two or more numbers and variables.

Let x represent the length and y represent the width. A rectangular tennis court has an area of 528 m², hence:

Area = length * width

528 = xy

y = 528/x

If the length is decreased by 1 m and the width is increased by 1 m, the area of the tennis court is increased by 16 m². Hence:

new area = new length * new width

528 + 16 = (x - 1)(y + 1)

xy + x - y + 1 = 544

x(528/x) + x - 528/x + 1 = 544

528 + x - 528/x + 1 = 544

multiplying through by x:

528x + x² - 528 + x = 544x

x² -15x - 528 = 0

x = 31.67, hence y = 528/31.67 = 16.67

Perimeter = 2(x + y) = 2(31.67 + 16.67)

Perimeter = 96.7 m

The perimeter is 96.7 m

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Please helppp immediately

Answers

 A function is a relationship between inputs where each input is related to exactly one output.

The outputs are called the range

The range of the function:

R = {-1, 0, 3}

Option C is the correct answer.

What is a function?

 A function is a relationship between inputs where each input is related to exactly one output.

A function has an input and an output.

Example:

f(x) = x + 1

f(1) = 1 + 1 = 2

Input = domain = 1

Output = range = 2

We have,

Function:

y = x² - 1

The domain of a function = {-2, -1, 0, 1, 2 }

Let y = f(x)

x = -2, -1, 0, 1, 2.

f(-2) = 4 - 1 = 3

f(-1) = 1 - 1 = 0

f(0) = 0 - 1 = -1

f(1) = 1 - 1 = 0

f(2) = 4 - 1 = 3

Thus,

The range of the function:

R = {-1, 0, 3}

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40 points!!! Please answer asap!!!

Answers

Answer:

There is a linear relationship between costumes and fabric. The rate of change is 3 1/2 yards per costume.

Step-by-step explanation:

The second possible answer is correct,

3 and 1/2

brailiest would be appreciated :]

Answer:  The correct answer is B. There is a linear relationship between the number of costumes and fabric. The rate of change is 3.5 yards per costume.

Step-by-step explanation:

Divide the Fabric yards by the number of costumes:

7 / 2 = 3.5

14 / 4 = 3.5

21 / 6 = 3.5

28 / 8 = 3.5

Since they are all 3.5 yards per costume, the relationship is LINEAR

State the line of reflection

Answers

Based on the given figures, the line of reflection will be c. Reflection across x-axis.

How to find the line of reflection?

If it looks like the line of reflection is a horizontal line as is the case here, the way to find the line of reflection is by finding the midway point between corresponding points on the graph.

For instance, use the coordinates of D and D' and C and C'.

The coordinates of D and D' are:

D = (-1, 1)

D' = (- 1, -1)

The Midpoint can be found to be:

= ( (x₁ + x₂) / 2, (y₁ + y₂) / 2)

= ( (-1 + (-1)) / 2), ( (1 + (-1)) / 2

= (-1, 0)

The coordinates of C and C' are:

C = (4, 1)

C' = (4, -1)

The Midpoint can be found to be:

= ( (x₁ + x₂) / 2, (y₁ + y₂) / 2)

= ( (4 + 4) / 2), ( (1 - (-1)) / 2

= (4, 0)

The line of reflection is therefore the x-axis because the value of y is 0 and the x = axis is the line that crosses y at 0.

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Question 7 , 8 Geometry

Answers

Answer:

i believe the answer is the distributive property

The cookie jar contains three types of coolcies: chocolate chip, sugar and oatmeal. There are 3 times as many chocolate chip as sugar cookies, and 12 more oatmeal than chocolate chip. If there are 54 cookies in the jar, how many oatmeal cookies are there?

Answers

By solving equations, we can conclude that there are 30 oatmeals in the jar.

What are equations?A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions. A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.

So, a number of oatmeals are in the jar.

Let, sugar cookies be 'x'.Chocolate chips are '3x'.Oatmeals be '3x + 12'

The total number of cookies is 54.

From the equation:

x + 3x + 3x + 12 = 54

Now, solve for 'x' as follows:

x + 3x + 3x + 12 = 547x + 12 = 547x = 54 - 127x = 42x = 42/7x = 6

Number of oatmeals when "x = 6':

3x + 123(6) + 1218 + 1230

Therefore, by solving equations, we can conclude that there are 30 oatmeals in the jar.

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The factored equation y=(x−1)(x−5)(x+7) has zeros (or x-intercepts).

Answers

The zeros of the factored form of the equation is x = 1, 5, and -7.

What is Factorization ?

Factorization is the method of breaking a number into smaller numbers that multiplied together will give that original form. Factorization is expressing a mathematical quantity in terms of multiples of smaller units of similar quantities.

We have been given the factored equation as; y=(x−1)(x−5)(x+7) that has zeros (or x-intercepts).

y=(x−1)(x−5)(x+7)

then the roots of the equation;

For (x−1)

x - 1 = 0

x = 1

For (x−5)

x - 5 = 0

x = 5

For (x+ 7)

x + 7 = 0

x = -7

Hence, The zeros of the factored form of the equation is x = 1, 5, and -7.

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Brian is making bags of trail mix for hiking club. He will use 21 ounces of walnuts, 10.2 ounces of almonds, and 14.3 ounces of cashews. This amount makes 25 bags of trail mix. How many ounces are in each bag?

Answers

Answer:

See explanation

Step-by-step explanation:

First add all the weights, 21+10.2+14.3=45.5oz

Then you divide 45.5 by 25 which equals 1.82oz

No Spamming or will report! Will give Brainliest. Must have explanation
Find four consecutive even integers such that the least plus twice the greatest equals 264

Answers

The four consecutive integers in the question are; 51, 52, 53, 54

What is the Sum of the Integers?

Let the four consecutive integers in the question be;

x, x + 1, x + 2 and 2(x + 4)

Now, we are told that the sum of these four consecutive integers is 264. Thus;

x + x + 1 + x + 2 + 2(x + 3) = 264

Expanding the bracket gives;

3x + 3 + 2x + 6 = 264

5x + 9 = 264

5x = 264 - 9

5x = 255

x = 255/5

x = 51

Thus;

Second integer = 51 + 1 = 52

Third integer = 51 + 2 = 53

Fourth Integer = 51 + 3 = 54

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