estimate and find the sum:
420,983 + 39,932

Answers

Answer 1

740,758 + 263,043=477,715


Related Questions

Find the volume of the sphere. Use 3.14 for n. Round to the nearest tenth. radius= 6ft.​

Answers

18.84 because I said so

Standard deviation of a sample means

Answers

Answer:

statistical metric that is used to measure the extent by which a random variable diverges from the mean of the sample

Step-by-step explanation:

Sample standard deviation refers to the statistical metric that is used to measure the extent by which a random variable diverges from the mean of the sample and it is calculated by adding the squares of the deviation of each variable from the mean, then divide the result by a number of variables minus and then computing the square root in excel of the result.

Hope this helps :}

Pls mark brainliest :P

And have an amazing day <3

Answer:

A sample standard deviation is a statistic. This means that it is calculated from only some of the individuals in a population. Since the sample standard deviation depends upon the sample, it has greater variability. Thus the standard deviation of the sample is greater than that of the population.

Step-by-step explanation:

A bag contains 9 red balls numbered 1, 2, 3, 4, 5, 6, 7, 8, 9 and 6 white balls numbered 10, 11, 12, 13, 14, 15. One ball is drawn from the bag. What is the probability that the ball is red, given that the ball is odd-numbered? (Enter your probability as a fraction.)

Answers

Answer: 5/8

Step-by-step explanation: There are 5 odd-numbered balls in the red numbered balls. There are 3 odd-numbered balls in the white numbered balls. So the probability of choosing a red odd numbered ball out of the set of all odd numbered balls is 5/8! Hope this helps!

Nathan usually drinks 35 ounces of water per day. He read that he should drink 68 ounces of water per day. If he starts drinking 68 ounces, what is the percent increase? Round to the nearest percent. Please help me

Answers

Answer:

It’s 61.40 percent so rounding to the nearest percent would be 61% he needs to increase

Please help ive been stuck in this question

Answers

Answer:

The choice A.

Step-by-step explanation:

sin= Opposite/ hypotenuse

[tex] \sin(30) = \frac{ \sqrt{15} }{x} \\ \\ x = 2 \sqrt{15} [/tex]

tan = opposite/adjacent

[tex] \tan(30) = \frac{ \sqrt{15} }{y} \\ \\ y = 3 \sqrt{5} [/tex]

I hope I helped you^_^

Question is attached.
Step by step explanation needed!​

Answers

Refer to the Attachment.

Hence proved.

Refer to the attachment

Please me I'm begging you

Answers

Step-by-step explanation:

[tex]y - [ - x - (y + 15)] \\ = ( - 9) - [ - (18)- (( - 9) + 15)] \\ = ( - 9) - [ - (18)- ( 6)] \\ = ( - 9) - [ - 24] \\ = - 9 + 24 = \boxed{15} \\ \\ - 6(x - 2) - 5(x + 7) \\ = - 6x + 12 - 5x - 35 \\\boxed{ = - 11x - 23 }\\ \\ \frac{3}{4}( 4x + \frac{4}{3} ) = 4x \\ 3x + 1 = 4x \\ 4x - 3x = 1 \\ \boxed{ x = 1}[/tex]

Prove that for any natural n the value of the expression (4n+5)^2–9 is divisible by 4.

thank you !!!
please show work, not just the answer

Answers

Answer:

4 n (2) + 10 n +4

Step-by-step explanation:

Step-by-step explanation:

Simplify the expression by opening parenthesis:

(4n + 5)² - 9 =(4n)² + 2*5*(4n) + 25 - 9 =4(4n²) + 4(10n) + 4(4) =4(4n² + 10n + 4)

As we see the expression has 4 as one of factors so is divisible by 4.

2 raised to power x+1=1​

Answers

Answer:

-1

Step-by-step explanation:

As you know every number raised to the power of zero is equal to one.

and here we have

[tex]2^{x+1} = 1[/tex]

[tex]2^{0} = 1[/tex]

[tex]2^{0} = 2 {}^{x + 1}[/tex]

[tex]x + 1 = 0[/tex]

[tex]x = - 1[/tex]

Given lines are parallel, find the value of x.
Then determine the measure of the angle.

Answers

Answers:

x = 45angle measure = 104 degrees

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

Explanation:

These angles are on alternating sides of the transversal line, and they are exterior of the parallel lines. Therefore, these are alternate exterior angles.

Alternate exterior angles are congruent when we have parallel lines like this.

Set the two expressions equal to each other. Solve for x.

3x-31 = x+59

3x-x = 59+31

2x = 90

x = 90/2

x = 45

Then we can find that:

3x-31 = 3*45-31 = 135-31 = 104x+59 = 45+59 = 104

Both alternate exterior angles are 104 degrees each, which confirms we have the correct x value.

13. Maddie purchased a sofa and a chair for her new apartment. The sofa cost $40 more
than twice the chair. She paid a total of $1252. What did she pay for each one?

Answers

The sofa cost $848 while the chair cost $404

Let x represent the cost of the sofa and y represent the cost of the chair.

The sofa cost $40 more  than twice the chair, hence:

x = 2y + 40

x - 2y = 40        (1)

She paid a total of $1252, hence:

x + y = 1252     (2)

Solving equation 1 and 2 simultaneously gives:

x = 848, y = 404

Therefore the sofa cost $848 while the chair cost $404

Find out more at: https://brainly.com/question/13910351

PLEASE HELP ITS MATH THANK YOUUUU

Answers

Answer:

38 yards because you add all them together

A rectangle is 19 feet long and 3 feet wide. Find its area,
67 square feet
22 square feet
37 square feet
60 square feet

Answers

Answer:

19 times 3 equal  57

Step-by-step explanation:

57 square feet

Reasoning Practice
w
w
w
w
20
3
W
Х
Х
24
w
Х
Х
Y у
25
w
Х
Y у
Z
30
The sum of each row is given. Find w, x, y and z.

Answers

5

Step-by-step explanation:

PLEASE HELP!!!!!!!
will mark brainliest!!!!

Answers

Answer:

8 IN by 6 in

Step-by-step explanation:

Hope it helps :)

1/5+1/2+1/4 reduce to lowest terms as indicated

Answers

Answer:

Step-by-step explanation:

LCM  of 5 , 2 and 4 = 20

[tex]\dfrac{1}{5}+\dfrac{1}{2}+\dfrac{1}{4}=\dfrac{1*4}{5*4}+\dfrac{1*10}{2*10}+\dfrac{1*5}{4*5}\\\\=\dfrac{4}{20}+\dfrac{10}{20}+\dfrac{5}{20}\\\\=\dfrac{4+10+5}{20}\\\\=\dfrac{19}{20}[/tex]

Hello everyone, please help me out on this, Select each correct answer pls.

Answers

Hey Caleb, the correct answers are A and D

Please mark brainiest :)

Suppose that the members of a student governance committee will be selected from the 40 members of the student senate. There are 18 sophomores, 12 juniors and 10 seniors who are members of the student senate. In how many ways can the governance committee be selected, if it must be made up of 2 sophomores, 2 juniors and 3 seniors? Assume that each of the sophomores, each of the juniors and each of the seniors is equally likely to be selected for the committee.

Answers

Using the combination formula, it is found that the committee can be selected in 1,211,760 ways.

Combination formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by:

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

In this problem:

2 sophomores from a set of 18.2 juniors from a set of 12.3 seniors from a set of 10.

They are independent, so we can just multiply them, thus:

[tex]T = C_{18,2} \times C_{12,2} \times C_{10,3} = \frac{18!}{2!16!} \times \frac{12!}{2!10!} \times \frac{10!}{3!7!} = 1211760[/tex]

The committee can be selected in 1,211,760 ways.

A similar problem is given at https://brainly.com/question/24650047

A field is a rectangle with a perimeter of 1200 feet. The length is 200 feet more than the width. Find the width and length of the rectangle field

Answers

the length is 400 and the width is 200!!

Answer:

Step-by-step explanation:

let the width be w

p=l*w

1200= 200*w

1200= 200w

1200 = 200w

6 feet = w

width is 6 feet

let the length be a

p = l* w

1200 = a* 6

1200 = 6a

1200 = 6a

200 feet  = a

length is 200 feet

HELP ME PLEASE WRITEEEEE

Answers

Answer:

Initial value is the y- intercept and the change per month is the slope.

The slope is $25, which is an increase rate per month.The y- intercept is $525, which is the investment amount.

The model function is:

f(x) = 25x + 525

In frequency curve the points are joined by bits of a straight line. True/False​

Answers

False. The frequency curve for a distribution can be obtained by drawing a smooth and free hand curve through the midpoints of the upper sides of the rectangles forming the histogram.

Add the linear expressions
(-4x – 2 – x) + (2x − 2)
What is the sum?
Enter your answer in the box.

Answers

Answer:

-3x -4

Step-by-step explanation:

did the test

A pet store has c tanks of fish. Each tank has 25 fish. Using c , write an expression for the total number of fish in the store.

Answers

Answer:

25c

Step-by-step explanation:

For example , if there are 3 tanks (or n is 3), the total number of fish would be 25* 3 = 75 fish.

solve pls brainliest

Answers

Answer:

a. Elsa's total change of her stocks is $448.

b. The change of the club's size each week was -5 members.

Step-by-step explanation:

a. The value of one share increased by 8 dollars. Elsa has 56 shares of that certain stock.

Given the information above, multiply [tex]56[/tex] × [tex]8[/tex] to find the total change in her stocks.

[tex]56[/tex] × [tex]8=448[/tex]

b. 30 members left a club on 6 weeks.

Given the information, divide [tex]-30[/tex] ÷ [tex]6[/tex] to find the amount of members leaving the club per week.

[tex]-30[/tex] ÷ [tex]6=-5[/tex]

What is the area of a rectangle with a length of 5 units and a width of 8 units

Answers

Answer:

40 square units

Step-by-step explanation:

A = LW

A = 5 units x 8 units

A = 40 square units

Answer:

40^2

Step-by-step explanation:

The formula for finding the area of a triangle is length times width. So all you have to do is multiply the length 5 and width 8 together to give you 40. Therefore, the area of the rectangle is 40^2.

Look at the picture and answer but I also need the value for each image

Answers

Answer:

15...your welcome my dude

Which equation is correct?

8 dot 8 equals 8 Superscript 2 equals 16.
9 dot 9 equals 2 left-parenthesis 9 right-parenthesis equals 18.
10 dot 10 equals 2 left-parenthesis 10 right-parenthesis equals 100.
11 dot 11 equals 11 Superscript 2 equals 121.

Answers

The equation that is correct is 11.11 = 11² = 121. The correct answer is the fourth option: 11 dot 11 equals 11 Superscript 2 equals 121 (11.11 = 11² = 121)

From the question,

We are to determine which of the options is correct.

To determine which of the options is correct, we will evaluate the options one after the other.

For the first option

8 dot 8 equals 8 Superscript 2 equals 16

That is,

8.8 = 8² = 16

Evaluating properly

8.8 = 8² = 8 × 8 = 64

Then, 8.8 = 8² ≠ 16

∴ This is NOT correct

For the second option

9 dot 9 equals 2 left-parenthesis 9 right-parenthesis equals 18

That is,

9.9 = 2(9) = 18

Evaluating properly

9.9 = 9 × 9 = 9² = 81

Then, 9.9 ≠ 2(9) = 18

∴ This is NOT correct

For the third option

10 dot 10 equals 2 left-parenthesis 10 right-parenthesis equals 100

That is,

10.10 = 2(10) = 100

Evaluating properly

10.10 = 10 × 10 = 10² = 100

Then, 10.10 ≠ 2(10) ≠ 100

∴This is NOT correct

For the fourth option

11 dot 11 equals 11 Superscript 2 equals 121

That is,

11.11 = 11² = 121

Evaluating properly

11.11 = 11² = 11 × 11 = 121

Then, 11.11 = 11² = 121

This is correct.

Hence, the equation that is correct is 11.11 = 11² = 121. The correct answer is the fourth option: 11 dot 11 equals 11 Superscript 2 equals 121 (11.11 = 11² = 121)

Learn more here: https://brainly.com/question/12872403

what is the squareroot of 144​

Answers

Answer:

The square root of 144 is 12

Step-by-step explanation:

[tex]\sqrt{144} = 12[/tex]

because 12 x 12 = 144

it's basically 12 doubled... [tex]12^{2}[/tex]

Answer:

12 is the square root of 144.

Step-by-step explanation:

That means if you multiply 12 by 12, you will get 144.

That's called 12² (12 squared)

The square root is the opposite of that. √144=12.

Keep in mind that 12*12=144.

Hope this helps!

[tex]GraceRosalia[/tex]

A stockbroker dealt with 30 customers on a certain day. Of these, 12 bought and sold stocks and 17 sold stocks (but did not buy). How many of the customers bought stocks (but did not sell)?

Answers

Answer:

25

Step-by-step explanation:

30=17+x-12


A line passes through the point (6, -4) and has a slope of - 4/3
Write an equation in point-slope form for this line.

Answers

Answer:

y--4=-4/3(x-6)

Then, y+4=-4/3(x-6).

Other Questions
QUICK?!!For each ordered pair, determine whether it is a solution to 3x-5y=-13 What is the slope of a line that is perpendicular to the line y = x + 4?The slope of the line is . 1. Use the supply schedule below to graph the supply curve of vintage concert t-shirts. Label the curve S1.2. Use the supply schedule of vintage concert t-shirts below to graph a second supply curve on the graph. Label the curve S2. 3. Does the graph indicate an increase or decrease in supply?4. Describe a reason that could have been a reason for this shift in supply.5. Why does the Qs of a product go down when price goes down? Help plz! I don't understand this problem!Write the slope-intercept form of the equation for each line. Which expression has a base with an exponent of 4? What element of "The Bells" was new to Poe's readers? Calculate the length between the followingpoints using the distance formula.Help please HELP PLEASE. MY BRAIN IS EMPTY which of the following expressions is equal to -x^2-81 Sally and Anne went to the movies. They each purchased a drink. They also bought one popcorn and one veggie cup to share. Each woman total is modeled with this expression:9 + 1.34 + 1/2 (3.50 +1.74)How would you simplify the expression? Explain your steps. An object is pulled up an incline plane at a constant velocity as the picture above shows. Calculate the tension on the rope.A. 377 NB. 502 NC. 305 ND. 545 N a. If the average ticket price is $15for a Chesapeake Bayhawksgame, what function T(x) showshow the income from ticket salesdepends on the attendance ateach game? Can you help me what's the answer to 6-8 Please help me with this!Information needed to answer:A pharmaceutical spectroscopist places a sample of a pain reliever into a mass spectrometer and obtains data about different compounds within the sample. The image below shows a mass spectrograph of the data. The relative intensity, shown on the vertical axis, indicates the relative amount of each compound in the sample. The m/z (mass to charge) ratio, shown on the horizontal axis, is related to the molecular mass of each compound.Question:Describe two observations you can make from the graph. (Graph is below)As usual, any non-answers will be reported. Thank you! 1. Red ___________________ the victory. (symbol) 2. Nguyen Du is considered as a famous Vietnamese _______________. (poem)3. Many designers took ___________________from Vietnams ethnic minorities. (inspire)4. _________________, ao dai was frequently worn by both men and women. (tradition)5. She usually wears ______________________clothes. (fashion)6. Our __________________________ situation is getting better and better. (economy) -7.2x < -50.4x + 432 9. The figure shows a rectangle with its length andbreadth as indicated. Given that the perimeter ofthe rectangle is 120 cm, find the area of the rectangle.(3x - y) cm(2x 3) cm(2x + y) cm can u rearrange this word vestingarh What system of linear inequalities is shown in the graphEnter your answers into the boxes -2y=2 what is the solution of this equation