How to estimate the sums and differences

How To Estimate The Sums And Differences

Answers

Answer 1
Am I supposed to answer the sum of each one ?

Related Questions

3. Evaluate the expression 18
7+2 - 4
a. 2
b. 1.4
c. 6
d. 18

Answers

The correct answer is A

1. Which inequality represents the following statement? Two times the quantity x plus 4 is greater than 10.

a.2x + 4 > 10
b.2(x + 4) > 10
c.x+4 > 10
d.2(x + 4) = 10​

Answers

The second one most likely if gt means greater than

In a recent year, the Better Business Bureau settled 75% of complaints they received. (Source: USA Today, March 2, 2009) You have been hired by the Bureau to investigate complaints this year involving computer stores. You plan to select a random sample of complaints to estimate the proportion of complaints the Bureau is able to settle. Assume the population proportion of complaints settled for the computer stores is the 0.75, as mentioned above. Suppose your sample size is 101. What is the probability that the sample proportion will be within 3 percent of the population proportion?

Answers

Answer:

0.5137

Step-by-step explanation:

The margin of error equals the critical value times the standard error.

MoE = CV × SE

In this case, the critical value is the z-score.

For a proportion, the standard error is:

SE = √(pq/n)

SE = √(0.75 × 0.25 / 101)

SE = 0.04309

Therefore:

0.03 = z × 0.04309

z = 0.6963

So the probability is:

P(-0.6963 < Z < 0.6963)

= P(Z < 0.6963) − P(Z < -0.6963)

= 0.7569 − 0.2431

= 0.5137

hellllllllllllllllllp​

Answers

Answer:

Step-by-step explanation:

Its b

Answer:

D

Step-by-step explanation: common sence because when it 5 and the little 2

would be 5 times 5 BUT 5 and the little 4 would be 5 times 5 times 5 times 5 so which if you add those u get 5 times etc u get the point

1/12
Multiply
(3v – 8)(v +6)
A) 312 – 26V + 48
C) 3v2 + 101 - 48
B) 30v2 - 41 - 48
D) 312 - 48

Answers

Answer:

C

Step-by-step explanation:

Its one only one with 3v2 since you do 3v * v

What relations, if any, are functions? Select all that apply.

Answers

ayooooo the functions: a and d.

Michael saw a pair of jeans that he really wants to buy. The price of the jeans is $25.60. He saw that they go on sale for weekend and will be 15% off. How much will he save?​

Answers

Answer:

$21.76

Step-by-step explanation:

15% of $25.60= $3.84

$25.60-$3.84= $21.76

Annie bakes cookies and cupcakes in a ratio of 4 to 3 for her gift boxes. Her school needs 35 desserts to sell in a bake sale.
How many cupcakes will she bake? How many cookies will she bake?

Answers

Answer:

20 cookies and 15 cupcakes (20:15)

Explanation:

First you need to multiply 4 by 5 which equals 20. Then 3 by 5 which equals 15. Then you need to add them together to get 35!

Ratio Table!

   4    |    3   x4

  16    |   12  + 4:3

 20   |   15   = 35!

I Hope This Helps!

determina la medida de cada ángulo identificado con las expresiones algebraicas, si se conoce que l y m son líneas paralelas (2x + 27) (3x + 6)​

Answers

Answer:

I don't know what you're saying but the answer is 6x^2+93x+162

Step-by-step explanation:

Can someone please help me?

Answers

Answer:

232.05

Step-by-step explanation:

find out how much it started out with

so divide 46dollars and 50 cents by 3

then you'll have 15dollars and 5 cents

now you know thats how much earned at first you multiply by 15 and you get the answer above

good luck

Which is greater?
(-3)(3) - 7 ______ 15 ÷ (-5) + 4

<,>,=

Answers

Answer:

15 and the rest it's a big

Graph y = - 3x + 7 .

Answers

Answer:

put your first point at 7 in y axis that point go down 3 to the rights side 1 and your point should be at (1,4) then connect the dots and that's how you graph it

Step-by-step explanation:

The equation of the line y = - 3x + 7 is drawn below.

What is a linear equation?

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The linear equation is given as,

x/a + y/b = 1

Where 'a' is the x-intercept of the line and ‘b’ is the y-intercept of the line.

The equation of the line is given below.

y = -3x + 7

Convert the line into intercepts form, then we have

y = - 3x + 7

3x + y = 7

x / (7/3) + y / 7 = 1

The equation of the line is drawn below.

More about the linear equation link is given below.

https://brainly.com/question/11897796

#SPJ2

Find 6/11/-3. Write in simplest form

Answers

Answer:

Bit confusing but I'll try my best.

Step-by-step explanation:

6/11 diving by -3.

-2/11.

What did Physics say to History when they are arguing?

Answers

Answer:

Hey!

Here's your answer!!

➡️Don't change the subject⬅️

Why do they even exist!?

Gotta study those experiments which we never perform and those people who are long gone xD

A fudge company makes 4 pounds of fudge. A worker separates the fudge into packages of ¼ of a pound of fudge each. How many packages does he make?

A 1/16

B 1

C 8

D 16

Answers

Answer:

16

Step-by-step explanation:

we are dividing based on the word separate.

4 divided by 1/4 is 16/1 which is 16.

so the worker made 16 packages

Please inform me if there are any questions:)

The number of fudge will be 16. The correct option is D.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that a fudge company makes 4 pounds of fudge. A worker separates the fudge into packages of ¼ of a pound of fudge each.

We are dividing based on the word separate.

4 divided by 1/4 is 16/1 which is 16.

Number = 4 / ( 1 / 4 )

Number = 16

The worker made 16 packages.

To know more about an expression follow

https://brainly.com/question/15978558

#SPJ2

Question 1 of 2
15 Points
A report revealed that the average no. of months that an employee stays in a factory is 36
months. Assuming that the no. of months of an employee tenure in the factory is normally
distributed with a standard deviation of 6 months, find the probability that a certain employee
will stay
a. More than 30 months
b. Less than 24 months
c. Between 24 to 48 months​

Answers

Answer:

Step-by-step explanation:

Given the following :

Mean(m) = 36 months

Standard deviation (s) = 6 months

A) probability of staying more than 30 months :

Zscore = ( x - m) / s

x = 30

Zscore = (30 - 36) / 6

Zscore = - 6/6

= - 1

P(Z > - 1) = 1 - p(Z < - 1) ; p(Z < - 1) = 0.1587

1 - p(Z < - 1) = 1 - 0.1587 = 0.8413

2)less than 24 months :

Zscore = ( x - m) / s

x = 24

Zscore = (24 - 36) / 6

Zscore = - 12/6

= - 2

P(Z < - 2) = 0.0228

3.) between 24 to 48 months

For 24 months : from above = 0.0228

48 months :

Zscore = ( x - m) / s

x = 48

Zscore = (48 - 36) / 6

Zscore = 12/6

= 2

P(Z < 2) = 0.9772 ( from z table)

Hence,

0.9772 - 0.0228 = 0.9544

you have three 1 dollar bills and 2 10 dollar bills in your wallet. you select a bill at random

Answers

Answer:

you are more likely to get a 10 dollar bill

Step-by-step explanation:

help! for 22 points

Answers

Answer:for a is (x,y) = (1, -5)

B is (x,y) ∈∅

And lastly is c is (x, y) = ( x , 1 - 7x), x∈

Step-by-step explanation:

for a is (x,y) = (1, -5)

B is (x,y) ∈∅

And lastly is c is (x, y) = ( x , 1 - 7x), x∈

help me pleeeaaasssee​

Answers

Answer:

[tex]a=2\frac{A}{P}[/tex]

Step-by-step explanation:

[tex]A=\frac{1}{2} ap[/tex]

because you want a, divide both sides by p

[tex]\frac{A}{p} =\frac{1}{2} a[/tex]

then, because the reciprocal of 1/2 is 2, multiply both sides by 2

[tex]a=2\frac{A}{P}[/tex]

find the length of x

Answers

The correct answer is B

2(4x − 3) = 5x − 3(x − 4)

Answers

Answer:  x=3

Step-by-step explanation:

x=3 if you isolate the variable (x) by dividing each side by factors that don’t contain the variable.

The graph shows the balance of an account that is earning interest over time. In which year was the account balance about $150? ​

Answers

Answer:

Year 7

Step-by-step explanation:

Hopefully this is helpful.

Answer:

ik im late and the other person was right but theres proof for the newcomers :)

Step-by-step explanation:

Easy math problem help me.I will give brainliest

Answers

Answer:

25

Step-by-step explanation:

HELP!!!
Find the equation of a line parallel to 2x + 2y=6 that contains the point (3,-5), Write the equation in slope-intercept

Answers

Answer:

[tex]y = -x -2[/tex]

Step-by-step explanation:

Slope-Intercept form of the line

Any given line with slope m and y-intercept b can be written as:

y=mx+b

We need to find the equation of a line parallel to

2x + 2y = 6

Dividing by 2:

x + y = 3

Solving for y:

y = -x + 3

Comparing with the slope-intercept form of the line:

m = -1

Parallel lines have the same slope, thus the required line must have a slope m = -1.

Since we have a point through which the line passes, we use the point-slope form:

y - k = m ( x - h )

Where (h,k) is the point.

The required equation of the line is:

y - (-5) = -1 (x - 3)

Operating:

y + 5 = -x + 3

Solving for y:

[tex]\boxed{y = -x -2}[/tex]

f(x) = x² + x; f(1)??

Answers

Fx^2+x
Pls mark brainliest

Which statement is false
A. Every integer is also a rational number
B. No rational number is irrational
C. Every rational number is also an integer
D. Every irrational number is also real

Answers

Answer:

C

Step-by-step explanation:

The answer is C because a rational number is a number that doesn't go forever, and an integer is a positive or negative whole number. For example, 3.5 is rational but not an integer. So, the correct answer is C, and I hope it helps!

The answer is C. have a nice day ^

Lanie works part-time at Sweet Treats Catering. She earns $13.25 per hour and work 25 hours a
week. She is paid semi-monthly.
a. Calculate her gross pay for 1 paycheck. Show all your math calculations.

Answers

Answer:

Semi-monthly gross pay = $662.5

Step-by-step explanation:

Given:

Earning per hour = $13.25

Number of hours per week = 25 hours

Find:

Semi-monthly gross pay

Computation:

Assume two week in semi-month

So,

Total working hour = 2(25)

Total working hour = 50 hours

Semi-monthly gross pay = Total working hour × Earning per hour

Semi-monthly gross pay = 50 × 13.25

Semi-monthly gross pay = $662.5

Help ? anybody ion know any of these I’m sorry please give me the correct answer .

Answers


Since we have the answers, we can just go through the numbers and substitute them for x and see if we get 23.

Starting with your answer, you said the answer was 3.

If we substitute all the x’s with 3, then we end up with 23 if we add all the sides.

(This means your original answer, 3 , is correct.)

Select the correct answer. The steps for solving the given equation are shown below. 8-3x=20 Select the correct equation for the missing step in the table.

Answers

Answer:

C

Step-by-step explanation:

Multiplying by the reciprocal is the same as division.

Answer:

its actually (b) addition property of equality

Step-by-step explanation:

i got the answer correct on edmentum

50 people were asked if they had ever been to Mauritius or the Seychelles on holiday.
11 had been to Mauritius, 7 had been to the Seychelles and 35 had been to neither.
How many had been to both?​

Answers

Answer:

11 + 7 = 18. Meaning to both Islands 15 people have visited so far.
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