How does using the properties of addition makes a problem easier to solve

Answers

Answer 1

9514 1404 393

Answer:

  properties of addition let you add, subtract, or rearrange the terms of a sum as may be needed

Step-by-step explanation:

Properties of addition let you rearrange a sum to make addition easier to do or to check mentally. They also let you "undo" addition or subtraction in the process of solving algebra problems. And, they let you add terms or constants that may make it easier to rearrange expressions, as in "completing the square."


Related Questions

Simplify (3 + 2i) - (5 - 4i)

Answers

Step-by-step explanation:

3 + (2 * i)) - (5 - (4 * i)) =

-2 + 6 i

Answer:

−8−2i

Step-by-step explanation:

26,720 inches are equal to _______ miles.

Answers

Answer:  0.42171717 miles

Step-by-step explanation:

 for  inches to mile conversion  divide  by 63350

so got 0.421717

Write a new function that represents a transformation to the parent function if the new function shifts right 5 units and up 3 units.​

Answers

Answer:

Let's define two transformations.

Vertical translation.

If we have a function f(x), a vertical translation of N untis is written as:

g(x) = f(x) + N

If N is positive, then the translation is upwards

If N is negative, then the translation is downwards.

Horizontal translation.

If we have a function f(x), a horizontal translation of N units is written as:

g(x) = f(x - N)

if N is positive, then the translation is to the right

If N is negative, then the translation is to the left.

Now we have a function g(x) that is a transformation of a parent function f(x) (we actually do not know which parent function, so i assume f(x) = x^2) such that we have a shift right 5 units and up 3 units.

Then:

g(x) = f(x - 5) + 3

and again, using f(x) = x^2

g(x) = (x - 5)^2  + 3

(Will give 50 points!) The dot plots below show the number of points scored by Sam and Daniel in 15 basketball games. What is the difference between the medians?


A) 2 points

B) 12 points

C) 16 points

D) 4 points

Answers

The answer is C Hope this helps

Answer:

C) 16 points

Step-by-step explanation:

Given the sequence [tex]c_n[/tex] defined recursively below, find [tex]c_5[/tex].

[tex]c_1 =4[/tex]
[tex]c_2 = 2[/tex]
[tex]c_n = 3c_{n-1}+2c_{n-2}-2[/tex]

Answers

Hello!

[tex]\large\boxed{c_{5} = 136}[/tex]

We can begin by solving for c₃ given the equations:

c₃ = 3c₂ + 2c₁ - 2

c₃ = 3(2) + 2(4) - 2

Simplify:

c₃ = 6 + 8 - 2 = 12

We can now find the subsequent terms:

c₄ = 3(12) + 2(2) - 2 = 38

c₅ = 3(38) + 2(12) - 2 = 136

Now we have to,

find the required value of c₅.

Given that,

→ c₁ = 4

→ c₂ = 2

→ [tex] \sf {c_n = 3c_{n-1}+2c_{n-2}-2}[/tex]

Let's solve c₃ first,

→ 3c₂ + 2c₁ - 2

→ 3(2) + 2(4) - 2

→ 6 + 8 - 2 = 12

Then the value of c₃ is

→ [c₃ = 12]

Then find the value of c₄,

→ c₄ = 3(12) + 2(2) - 2

→ c₄ = {36 + 4} - 2

→ c₄ = 40 - 2

→ [c₄ = 38]

Next we can solve for c₅,

→ c₅ = 3(38) + 2(12) - 2

→ c₅ = {114 + 24} - 2

→ c₅ = 138 - 2

→ [c₅ = 136]

Hence, the value of c₅ is 136.

Which of these is a safe practice when working with horses?
A . use a firm, loud voice
B . stay in the horse’s blind spot use quick-release knots for easy escape
C . if unattended, leave the horse tied up

Answers

Answer:

i think the awnser is c . if unattended, leave the horse tire up

40
55
23
26


HELP ASAP PLS

Answers

Answer:

26

Step-by-step explanation:

180-63-78 = 39

180 - 39- 59 =82

180-82-72=26

HELP ME ITS DUE TODAY AND I NEED HELP PLS IM BEGGING

Answers

2) the answer is -1 for this one because it goes from 5/3/1/d

How does the social distancing impact society please help me i really need help please help

Answers

Answer:

prevents people from effectively socializing

Step-by-step explanation:

social distancing presents the dangers of increasing social rejection, growing impersonality and individualism, and the loss of a sense of community.

A law firm is going to designate associates and partners to a big new case. The daily rate charged to the client for each associate is $600 and the daily rate for each partner is $1100. The law firm assigned a total of 10 lawyers to the case and was able to charge the client $8000 per day for these lawyers' services. Determine the number of associates assigned to the case and the number of partners assigned to the case.
There were ____associates assigned to the case and ____
partners assigned to the case.

Answers

Answer:   x = 7

Thus 7 associates and 10 partners were assigned

Step-by-step explanation:

7 associates and 10 partners were assigned

Let "x" be the number of associates assigned to

case

Let "y" be the number of partners assigned to the case

The law firm assigned a total of 17 lawyers to the case

Therefore,

x + y = 17

x = 17 - y --------- eqn 1

daily rate charged to the client for each associate is $800

daily rate for each partner is $1800

They was able to charge the client $23600 per day for these lawyers' services

Therefore,

800x + 1800y = 23600 ------- eqn 2

Let us solve eqn 1 and eqn 2

Substitute eqn 1 in eqn 2

800(17 - y) + 1800y = 23600

13600 - 800y + 1800y = 23600

1000y = 23600 - 13600

1000y = 10000

Divide both sides by 1000

y = 10

Substitute y = 10 in eqn 1

x = 17 - 10

x = 7

Thus 7 associates and 10 partners were assigned

Which missing piece of information would allow the triangles in the figure to be proven congruent by AAS?

Answers

The missing piece of information is ∠C ≅ ∠C′

How to determine the missing piece?

From the figure,  we have:

AB ≅ A'B'

<B ≅ <B'

The above means that:

Sides AB and A'B' are congruentAngles B and B' are congruent

The congruence theorem is given as:

AAS --- Angle Angle Theorem

i.e.

Two corresponding angles and one corresponding side are congruent

Since a congruent side and a congruent angle have been given;

We need a congruent angle to complete the piece

In this case, we have:

∠C ≅ ∠C′

Hence, the missing piece of information is ∠C ≅ ∠C′

Read more about congruent triangles at:

https://brainly.com/question/1675117

#SPJ1


A cone has a diameter of 20cm and a height of 12cm, what is the volume of the cone?

Answers

Answer:

The cone volume that has a diameter of 20cm and a height of 12cm is 5,026.548246 cm^3 or 5,027 cm^3

Make sure to round your answer to the nearest significant figure that you're asked.

Step-by-step explanation:

The formula for the volume of a cone is (height x π x (diameter / 2)^2)/3, where (diameter / 2) is the radius of the base (d - 2 x r), so another way to write it is (height x π x radius^2) / 3

In a lab experiment, 310 bacteria are placed in a petri dish. The conditions are such
that the number of bacteria is able to double every 30 hours. How long would it be, to
the nearest tenth of an hour, until there are 440 bacteria present?

Answers

The answer:

15.157059248=15.2(When rounded to the nearest tenth)

WILL MARK BRAINLIEST! TY!

[Ignore the one that I selected its probably wrong]

Answers

Answer:

Ok so the answer is the first option

The total cost​ (in dollars) of producing x college textbooks is .
​(a) What are the fixed​ costs?
​(b) What is the marginal cost per​ book?
​(c) What is the total cost of producing ​books? ​books?
​(d) What is the average cost when books are​ produced? when books are​ produced?

Answers

c , hope this helped you

pLS WILL GIVE BRAINLIEST for correct answer pls

Answers

Answer:

1/6

Step-by-step explanation:

Ahmed is creating clay at home for an art project. The recipe calls for 2 cups of water and 4 cups of flour. Ahmed would like to make more clay than the recipe calls for and so he puts 20 cups of flour in the bowl instead. How many cups of water should he use?

Answers

Answer:

10 cups of water should be used

Step-by-step explanation:

Answer:

2 : 4 : : x : 20

2×20/4

2 × 5 = 10

therefore he should use 10 cups of water

Hope it helps!

4 ft
5 ft
7.5 ft
The surface area is
6
square feet.

Answers

Answer:

30

Step-by-step explanation:

length x width = surface area

7.5 x 4 = 30

combine like terms


z{2} + z + 4z{3} + 4z{2}

Answers

23z pretty sure sorry if it’s wrong

If anyone can help i would appreciate it. Ill give brainiest to anyone who answers with out a link

Answers

Answer:

im pretty sure what u have ther is right

You should download photomath

You have recently signed up for a new job and noticed this policy for retirement savings. Invest $200 and the employer does 70% matching for 35 years at an interest rate of 4.8%.

Find the total amount that the employer contributes each month.

What amount will you have after 35 years?

How much money have you deposited into the account yourself?

How much more money is in the account than what you have deposited?

Answers

Answer:

Amount per month contributed by employer $ = 200*0.70 = 140

Total amount employer contributes $ = 140*420 = 58800

Total amount employee contributes $ = 200*420 = 84000

Total amount after 35 years with interest calculated AT 4.8% (Employer + employee + interest) $ = 371024.67

Interest amount for 35 years accumulated $ = 228224.67

Amount deposited by employee $ = 84000

Excess amount in the account over the employee contribution

Including employer contribution $ = 287024.67

Excluding employer contribution $ = 228224.67

Step-by-step explanation:

LOOK AT THE PICTURE FOR STEPS

Question
Shannon is designing a snowman for a winter mural. She wants the head of the snowman to have a radius of 5 inches (
5 in.), and the midsection of the snowman to have a radius of 7 in. How much bigger is the area of the snowman's
midsection than the area of its head? In other words, how many more square inches of material will be needed to create
the midsection of the snowman compared to the souare inches needed to create its head?

Answers

Answer:

75.36

Step-by-step explanation:

Area of the top of the snowman

A=πr^2

A=3.14(5)^2

A=78.5

A=πr^2

A=3.14(7)^2

A=153.86

The difference of the areas:

153.86-78.5

=75.36

what is 5 cm in mm. NEED HELP ASAP !!!!!!!

Answers

50 millimeters is your answer

Select following series as artithmetic, geometric or neither. 1+2 +3+4+...+10

Answers

Ok so The answer is 20

Over the last three evenings, Elsa received a total of 110 phone calls at the call center. The first evening, she received 10 fewer calls than the third
evening. The second evening, she received 4 times as many calls as the third evening. How many phone calls did she receive each evening?

Answers

Answer:

first evening, 10 calls, second evening 80 calls, third evening, 20 calls.

Step-by-step explanation:

if the number of calls received during the first evening is X, then the number of calls received during the third evening is X+10 as the third evening received 10 more calls than first evening. The second evening received 4 times of third so 4X+10. Add them up together and put them equal to 110.

X+10+X+4X+40=110

6X+50=110

6X=110-50

6X=60

X=10

First evening, 10 calls,

second evening 80 calls; 4X+40, 4(10)+40=80

third evening 20 calls; X+10, (10)+10=20

What is the length of de

Answers

Answer:

B. 37 units

Step-by-step explanation:

DE = 4x + 1

AB = 11x - 25

DE is a midsegment of the ∆ABC

Therefore:

DE = ½(AB) => Triangle Midsegment Theorem

4x + 1 = ½(11x - 25)

2(4x + 1) = 11x - 25

8x + 2 = 11x - 25

Collect like terms

8x - 11x = -2 - 25

-3x = -27

-3x/-3 = -27/-3

x = 9

✔️DE = 4x + 1

Plug in the value of x

DE = 4(9) + 1 = 36 + 1

DE = 37

hello I need help on the 4 questions please help thank you:D​

Answers

Step-by-step explanation:

1. simple interest

I= p × r × t

I = 1050 × 4.5 × 2

I = $9450

2. principal

p = I/(rt)

p= 22.50/ (3× 3)

p = 22.50/9

p = $2.5

3. simple interest

I= p × r × t

I = 500 × 5 × 3

I = $7500

4. time

first convert r to decimal

r= r/100, r= 3.5 / 100

r= 0.035

t = i/(pr)

t = 43.75/ (2500× 0.035)

t = 43.75/ 87.5

t = 0.5 year or 6 months

chicken wing chicken wing

Answers

Answer:

hot dog and baloney :>

Step-by-step explanation:

yeet

Answer:

Hot dog and baloney

Chicken and macaroni

Chilling with my homies

I heard it so many times :)

Will give brainlst
Have a nice day

Answers

Answer:

Remember that the Pythagorean's theorem says that:

For a triangle rectangle with hypotenuse H and catheti A and B:

H^2 = A^2 + B^2

Here we also need to remember that the area of a square of side length L is:

area = L^2

Now let's solve this.

First, we start with two squares, one of side length a and the other of side length b.

Such that the complete area in the first image is:

area = a^2 + b^2

Now we draw two triangle rectangles with catheti a and b, and with hypotenuse c.

in step 3, we rotate those triangles in order to make a larger square, with side length c, with an area equal to:

area = c^2

Notice that we never added more shapes, so the area of the image did not change in all this process, then the initial area must be equal to the final area:

a^2 + b^2 = area = c^2

a^2 + b^2 = c^2

And remember that a and b are the catheti of the triangles, and c is the hypotenuse, then this is the Pythagorean's theorem.

Determine the quadrant (s) in which each statement is true. csc(theta)greater than 0

Answers

Answer: The answer is 1st quadrant.

Step-by-step explanation:

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