if the mean of seven values is 39, find the sum of the values.

Answers

Answer 1

the sum of the values = 39 × 7 = 273

Answer 2

Sum. The aggregate of a group of numbers. The formula is:Sum = , where the symbol ∑ represents adding all the data values.

136+39=175

Related Questions

I really need help!! God bless you.

Answers

Ok so 65 percent of 10,000 is 6500. This means that she has to get the other 3500 herself. Since she has a year to save divide 3500 by 12 for each month of the year which is equal to $291.67. Then simply round up to get your answer which is A. $292.

Hope this helped and good luck

Hannah has 11 toothpicks that are the same length.Name the types of triangles and quadrilaterals Hannah can make if she uses only one toothpick for each side of each figure

Answers

hannah can make 2 quadrilaterals and 1 triangle.

Answer:

Step-by-step explanation:

Given that Hannah has 11 toothpicks that are the same length

When she uses only one toothpick for each side then we see that all sides would be equal whether quadrilateral or triangle.

Hence she can make equilateral triangles, rhombuses or squares out of these 11 toothpicks

Either one equilateral triangle, and 2 rhombuses, or one equil. triangle and 2 squares or 1 equil triangle with 1 square, 1 rhombus or 2 equil triangles with one square or rhombus

The sequence an = 1/2 (2)^(n - 1) is graphed below:

coordinate plane showing the points 2, 1; 3, 2; 4, 4; and 5, 8

Find the average rate of change between n = 2 and n = 4.

Answers

The average rate of change of the sequence from n = 2 to n = 4 is 1.5, which is determined by calculating the difference in sequence values for these n values and dividing by the difference in n.

The average rate of change of a function between two points reflects the function's slope between those points. To find the average rate of change of the sequence [tex]a_n = \frac{1}{2} (2)^{n - 1}[/tex]from n = 2 to n = 4, we calculate the differences in the sequence values corresponding to these n values and divide by the difference in n itself.

The value of a_n when n = 2 is [tex]a_2 = \frac{1}{2} (2)^{2 - 1}= 1.[/tex]The value of a_n when n = 4 is [tex]a_4 = \frac{1}{2} (2)^{4 - 1}[/tex]= 4.To find the average rate of change, use the formula: rate of change = [tex](a_4 - a_2)[/tex] / (4 - 2) = (4 - 1) / (4 - 2) = 3/2 = 1.5.

Therefore, the average rate of change between n = 2 and n = 4 for this sequence is 1.5.

A cylinder has a Height 12 and a radius 3.7 what is it’s volume?

Answers

The formula for the volume of a cylinder is v = π r² h
Let's use 3.14 for π.
Square 3.7 to get 13.69.
Multiply that by 3.14.
v = 42.9866 x 12
Finally, multiply it by 12.
v = 515.8392

You could also express your answer in terms of pi.
Square 3.7 to get 13.69.
Multiply it by 12. 164.28 is what you get.
v = 164.28π

Hope this helps!

solve the following proportion equation _X =_4
5 10 do the wholr thing step by step and explain thanks

Answers

The equation to solve is:
[tex] \frac{x}{5}= \frac{4}{10} [/tex]
Step-by-step solution:
1) multiply both sides of the equation by 10:
[tex]10 \cdot \frac{x}{5} = 10\cdot \frac{4}{10}[/tex]
2) simplifying:
[tex]2x = 4[/tex]
3) dividing both terms by 2:
[tex]x= \frac{4}{2}=2 [/tex]
and the solution is x=2.

Hi there!

The Eqn. is :-

[tex]\dfrac {x}{5} = \dfrac {4}{10}[/tex]

=> x = [tex]\dfrac {4}{10}[/tex] × 5

=> x = [tex]\dfrac {4}{2}[/tex]

=> x = 2

Hence, x = 2

~ Hope it helps!

Katenka cross country skied a trail that was 3/4 mile each way. after skiing 2/3 of the trail she turned around. What fraction of a mile did katenka ski before she turned around.

Answers

we know that

[total trail]=(3/4)*2------> 6/4---------> (3/2) miles

[fraction of a mile that katenka did]=(2/3)*(3/2)------> 1 mile

the answer is 1 mile

challenge to all the maths lover

Answers

point(-5,3) after the 2 reflections would become (3,-5)

point (4,-2) after the 2 reflections becomes (2,4)

All books in a store are being discounted by 40%. let x represent the regular price of any book in the store which expression describes the sale price of a book ?

Answers

To find the sale price we can set up a proportion. 25/100 = x/48. We keep the 100 and 48 both on the bottom of the fraction since they represent the "whole". x represents the discount off the full price of the dress. To solve this proportion, we cross multiply, yielding 48 * 25 = 100x. Alternatively, if you notice that 25/100 ...

Barb is making a bead necklace. She strings 1 white bead, then 3 blue beads, then 1 white bead and so on. Write the numbers for the first eight beads that are white. What is a rule for the pattern?

Answers

Final answer:

In Barb's necklace pattern, white beads occur at position numbers 1, 5, 9, 13, 17, 21, 25, and 29. The rule for the pattern is that any white bead will appear at a position that is 4n + 1, where n is any non-negative integer.

Explanation:

The student's question involves determining the position numbers of the first eight white beads in a pattern and identifying a rule for this pattern. The pattern established by Barb is one white bead followed by three blue beads, which then repeats. To find the positions of the first eight white beads, let's enumerate the pattern until we have identified eight white beads.

WhiteBlueBlueBlueWhiteBlueBlueBlueWhite...

As we can see, the white beads appear in a consistent pattern at every fourth position in the sequence. Thus, by listing out the pattern, we can identify the first eight white beads' position numbers as follows:

1591317212529

The rule for the pattern can be described as follows: any white bead will be at a position number that is 1 more than a multiple of 4 (i.e., 4n + 1, where n is a non-negative integer).

Final answer:

The first eight white beads in Barb's necklace pattern are in positions 1, 5, 9, 13, 17, 21, 25, and 29. The rule for the pattern is 4n - 3 for the nth white bead.

Explanation:

Barb is making a bead necklace with a repeating pattern: 1 white bead, followed by 3 blue beads, and then the pattern repeats. To determine the numbers for the first eight beads that are white, we can examine the pattern more closely. Since the pattern begins with a white bead and every white bead is followed by three blue beads, we can deduce that it takes 4 beads in total to complete one cycle of the pattern (1 white + 3 blue).

The positions of the first eight white beads are as follows: 1st, 5th, 9th, 13th, 17th, 21st, 25th, and 29th. The rule for this pattern can be expressed as follows: To find the position of any white bead in the sequence, you can use the formula 4n - 3, where n represents the nth white bead in the sequence.

For example, to find the position of the third white bead, we substitute n with 3 into our formula: 4 * 3 - 3, which equals 9. Therefore, the third white bead is the 9th bead in the overall pattern.

Factor 15a^3+ 20a^2- 6a- 8 by grouping

Answers

[tex]15a^3+ 20a^2- 6a- 8[/tex]
= [tex]5a^2(3a+ 4) - 2(3a + 4)[/tex]
= [tex](3a+ 4) (5a^2- 2)[/tex]

Write an equation of the line that is perpendicular to y = −4x + 8 and passes through the point (5, 1)

Answers

Hello,

To start, we have to identify the slope of the perpendicular line. Perpendicular lines have opposite reciprocal slopes. Therefore, the slope of our new line will be 1/4.

Now, just substitute in the given point with our new slope and we can solve for B.

y = (1/4)x + b
1 = (1/4)5 + b
1 = 5/4 + b
-1/4 = b

Now that we have the slope and the y-intercept, we can put together our equation.

It is: y = (1/4)x - 1/4

Good luck,
MrEQ

Which figure can be formed from the net?

Answers

definitely the first one i hope this helps u. ( ͡° ͜ʖ ͡°)

The first option for sure

Hope this helps

~ Jordan ~

what does these equation equal to [x+x]+[x+x+x]=blank and [x+x+x]+[x+x+x]=

Answers

[x+x] + [x+x+x] = [2x] + [3x] = 5x
[x+x+x] + [x+x+x] = [3x] + [3x] = 6x

Hope this helps :)

Answer:

[x+x] + [x+x+x] = [2x] + [3x] = 5x

[x+x+x] + [x+x+x] = [3x] + [3x] = 6x

Hope this helps :)

Place the following temperatures in order from coldest to hottest: -8°C, 10°C, -5°F, 40°F

Answers

To solve this problem, you should first convert all temperatures to one temperature scale. I'll use the formula to convert Fahrenheit to Celsius.
It is C = 5/9(F - 32), where F is the degrees Fahrenheit.

Let's start converting.

C = 5/9(-5 - 32)
C = 5/9(-37)
C = -185/9
C = -20.6°

C = 5/9(40 - 32)
C = 5/9(8)
C = 40/9
C = 4.4°

Now let's arrange them from least to greatest:
-20.6°C, -8°C, 4.4°C, 10°C.

Answer:
-5°F, -8°C, 40°F, 10°C.

A bakery sells 6 bagels for $2.99 and 4 muffins for $3.29. What is the total cost in dollars for 4 dozens bagels and 16 muffins, not including tax? Need help trying figure how to start solving

Answers

24$ for 4 dozens of bagels
13.16$ for 16 muffins

Since a dozen has 12 in it you can multiply 2.99 by two since that's the cost for six. Then you multiply that amount by 4. For the muffins you need to multiply 3.29 by four. Finally, you take both of those products and add them together to find the total cost.

What is 4,7,12,19,28 in quadratic sequence

Answers

a[n] = n^2 +3 . . . . .describes the given sequence

Answer:

nth term = x²+3

50th term = 2503

100th term = 10003

When choosing a new class color, 90 students voted for crimson and 60 voted for royal blue. What percent of these students voted for the color crimson?

Answers

The percentage of students voted for colour crimson
=
[tex] \frac{90}{60 + 90} \times 100\% \\ = \frac{90}{150} \times 100\%\\ = \frac{9}{15} \times 100\% \\ = 60\% [/tex]
hope it helps!

PLZ HELP!!!!!! (WILL GIVE BRAINLIEST!!!!)

Answers

The answer is 1000mm

wlh
= 5 x 10 x 20
= 1000

I hope this helps!

A=LW;for L. Solve for the indicated variable. Include all work in the answer.

Answers

A=LW
A divided by W= L divided by W (cancels out)
Answer: A/W = L

Hope this helps! Can I get brainliest? lol

Solving for L , we get A/W= L

What are linear equations ?

Equations of degree 1 are called Linear Equation

To solve the above equation for the variable L . We need to isolate the variable on one side of the equation with the other terms on the other side

Given liner equation :

A= LW

In order to get L , need to isolate L and need to divide whole equation by W

A/W = LW/W

A/W= L

Learn more about Linear Equation

https://brainly.com/question/2263981?referrer=searchResult

How do you tell a triangle is not a right triangle

Answers

You can tell when you cant draw an even L shaped figure at the intersects of the bottom and the side. 90 degrees. But there are many different ways that may make more sense. Happy to help:)

Hi! :)

So a right triangle is classified as a right triangle because it has one right angle. You can tell if it's not a right triangle by the angle measurements. If all the angles are above or below 90 degrees, it's not a right triangle. If one of the angles is 90 degrees, it's classified as a right triangle.

Hope this helps!

How to do this also how to put this in standard form

Answers

I hope the attachment loads right:

Curtis build a dog house with base shaped like a cube and a roof shaped like a pyramid. The cube has an edge lenght of 3 1/2 feet. The height of the pyramid is 5 feet. Find the volume of the doghouse rounded to the nearest tenth.

Answers

The volume of the cube is:
V1 = L ^ 3
Where,
L: length of the sides of the cube.
Substituting we have:
V1 = (3 + 1/2) ^ 3
V1 = 42,875 feet ^ 3
The volume of the pyramid is:
V2 = ((Ab) * (h)) / (3)
Where,
Ab: base area
h: height
Substituting we have:
V2 = (((3 1/2) * (3 1/2)) * (5)) / (3)
V2 = 20.41666667 feet ^ 3
The volume of the house is the sum of both volumes:
V1 + V2 = 42,875 feet ^ 3 + 20.41666667 feet ^ 3
V1 + V2 = 63.29166667 feet ^ 3
Nearest tenth:
V1 + V2 = 63.3 feet ^ 3
Answer:
The volume of the doghouse rounded to the nearest tenth is:
V1 + V2 = 63.3 feet ^ 3

Jill and her children build 8 sandcastles.Click on the first 4 multiples of 8

Answers

8*1=8
8*2=16
8*3=24
8*4=32

8,16,24, and 32 are the first 4 multiples

8
16
24
32
Here are the first 4 multiples of 8

Which of the following represents seventh root of x to the sixth power in exponential form

Answers

That would be x^(6/7).

After school,Philipe spent 1 3/4 hours of baseball practice, 2 1/4 hours on homework, and 1/4 hour getting ready for bed.Wich is the most reasonable estimate for how long he spent on his activities:3 hours,4 hours,or 5 hours?Explain

Answers

4 hours. 1 3/4 is about 2, and 2 1/4 rounds to 2. 1/4 would round to 0, but it would not affect the estimate's accuracy much because we rounded up by 1/4 on 1 3/4 already. Philipe spent about 4 hours on activities.

Monica purchased adult and youth tickets for the fair. She bought x adult tickets for $28 each and y youth tickets for $15. Write an expression that can be used to show the total cost, C, of all tickets

Answers

C=28x+15y is the expression!

The graph show is
A)fails the vertical line test at (2,3) and (2,-2)
B) fails the vertical line test at (2,3) and (-1,3)
C) passes the vertical line test
So the line is
A) a function
B) not a function

Answers

First Answer:
A)fails the vertical line test at (2,3) and (2,-2)

Second Answer:
B) not a function
=========================================

Further Explanation:

It is possible to pass a single vertical line through this red curve. So it is not a function because it fails the vertical line test. One specific line goes from (2,3) to (2,-2) but there are infinitely other lines to choose from. In order to pass the vertical line test, it must be impossible to pass a vertical line through more than one point on the curve. A function is where any given input leads to exactly one output. In the case of (2,3) and (2,-2), the input x = 2 leads to more than one output (y = 3 and y = -2) at the same time

Carol has a small copy of a painting. The dimensions of her copy are shown at right. The scale of the copy is 0.5 inches : 12 centimeter.
a.Find the dimensions of the original painting.
b.Find the area of the original painting.
c.One centimeter is equal to approximately 0.033 foot. Find the dimensions of the original painting in feet.
d.Find the area of the painting in square feet. Round to the nearest thousands.
(I'm sorry I don't understand this...can anyone help??..)

Answers

the complete question in the attached figure

we know that
[scale]=0.5/12
[scale]=[copy of a painting]/[original painting]

dimensions copy of a painting--------------> 1.75 in x 5.25 in

for 1.75 in
[original painting]=[copy of a painting]/[scale]
[original painting]=[1.75]/[(0.5/12)]=42 cm

for 5.25 in
[original painting]=[copy of a painting]/[scale]
[original painting]=[5.25]/[(0.5/12)]=126 cm

the answer Part A) is
the dimensions of the original painting are 42 cm x 126 cm

Part B)
Find the area of the original painting.
[area of the original painting]=42*126=5292 cm²

the answer Part B) is
area of the original painting is 5292 cm²

Part C)
One centimeter is equal to approximately 0.033 foot. Find the dimensions of the original painting in feet.

the dimensions of the original painting are 42 cm x 126 cm
then

for 42 cm
if 1 cm----------------> 0.033 ft
42 cm----------------> X
X=42*0.033=1.386 ---------> 1.386 ft

for 126 cm
if 1 cm----------------> 0.033 ft
126 cm----------------> X
X=126*0.033=4.158 --------> 4.158 ft

the answer Part C) is
the dimensions of the original painting in feet are 1.386 ft x 4.158 ft

Part D) Find the area of the painting in square feet. Round to the nearest thousands.

the dimensions of the original painting in feet are 1.386 ft x 4.158 ft
{Area original painting in feet]=1.386*4.158=5.763 ft²

the answer part C) is
the area original painting in feet is 5.763 ft²

i really need help with this question

Answers

g(x) appears to be a vertical expansion of f(x) by a factor of 3. f(x) appears to be
.. f(x) = x²
so g(x) would be
.. g(x) = 3x²

Which answer shows a correct order to solve this story problem? Victor bought 3 sandwiches for $3.25 each, 3 bags of chips for $1.10 each, and a bottle of water for $1.99. He left the waiter a $2.25 tip. How much did Victor spend?

A. Step 1: Add the price of a sandwich to the price of the bottle of water. Step 2: Multiply that total by 3. Step 3: Add the total price of 3 bags of chips to that total. Step 4: Add the tip to the final total for all the items.

B. Step 1: Calculate the total price of the 3 sandwiches. Step 2: Calculate the total price of the 3 bags of chips. Step 3: Add $1.99 to total cost for the sandwiches and chips. Step 4: Add the tip to the final total for all the items.

C. Step 1: Add the price of a sandwich and a bag of chips. Step 2: Add $1.99 to total for the sandwiches and chips. Step 3: Multiply that total by 3. Step 4: Add the tip to the final total for all the items.

Answers

I think it would be c.

I think it would be C

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