Which expressions are equivalent to g + h + (j + k)? Check all that apply.
g + (h + j) + k
(g + h) + j k
(g + h) + j + k
g + (h j) + k
g h + j k
g (h + j) k
g + h (j + k)

Answers

Answer 1

Answer:

According to the associative property of equality: (a + b) + c = a + (b + c) we can see that the parenthesis do not mean anything when we are only doing addition.

So answers 1. and 3. are correct.

Step-by-step explanation:

Answer 2

Answer:

person above seems corect and he said a and c


Related Questions

A rectangular lot is 125 yards long and 80 yards wide.
Give the length and width of another rectangular lot that has the same perimeter but a larger area.

Answers

Answer:

Step-by-step explanation:

perimeter=2(125+80)=2(205)=410 yards

let the length of new rectangle be x and y.

Perimeter=2(x+y)

2(x+y)=410

x+y=410/2=205 yards

y=205-x

area A=xy=x(205-x)=205x-x²

[tex]\frac{dA}{dx} =205-2x\\\frac{dA}{dx}=0,gives~205-2x=0\\x=\frac{205}{2}\\\frac{d^2A}{dx^2}=-2<0 ~at~x=\frac{205}{2}\\[/tex]

A is maximum at x=205/2

y=205-205/2=(410-205)/2=205/2

so x=205/2=102.5 yards

y=205/2=102.5 yards

What is the slope of the line that passes through the points (-10, -8) and (−8,−16)? Write your answer in simplest form.

Answers

Answer:y=-8 x=2

-8/2 or -4

Step-by-step explanation:

r = 21 ft what is the diameter

Answers

the radius is half the diameter so if you multiply the radius by two, you get the diameter
21(2)= 42
the diameter is 42

An unbalanced coin is spun 150 times, and lands heads up 102 times. What is the observed probability of this coin landing heads up when spun? A. 8/25 B. 24/51 C. 1/2 D. 17/25

Answers

Answer:

b

Step-by-step explanation:

Answer:

Step-by-step explanation:

The answer is B.

helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

the answer is: 22

Step-by-step explanation:

There are 3 students to 1 adult on a field trip. You need to find the number of adults needed for 24 students. What would
the second ratio of the proportion look like If the first proportion is as follows?
3 students
1 adult
O
Х
24 students
O
24 students
Х please just answer
o
3
o

Answers

Answer:

6

Step-by-step explanation:

Answer:

24students:X

Step-by-step explanation:

I didnt really understand but this is my best answer

What is the length of the hypotenuse to the nearest hundredth place in the diagram below

Answers

Answer:

Hypotenuse (x) = 7.27

Step-by-step explanation:

cos57*=4cm/x

cos57*/cos57*=4/cos57*

x=4/cos57*

cos57*~.55

x=4/.55

x=7.27

[tex]3q + 2p + 7[/tex]

Answers

Answer
5q+7

Explanation
3q+2q+7

Collect like terms by adding their coefficients

(3+2)q+7

Add the numbers

5x+7

Tell whether (2,0) is a solution of y=7x+ 2.

Answers

Answer:

No

Step-by-step explanation:

7x2=14, 14+2=16, 16 is not 0.

I don’t think so I hope this helps

In the rectangle below,EI=4x+5 ,FI=6x+1 , and m

Answers

Answer:

what? I dont understand not one thing

Factor completely x3 − 2x2 − 5x + 10.
(x − 2)(x2 − 5)
(x + 2)(x2 + 5)
(x − 2)(x2 + 5)
(x + 2)(x2 − 5)

Answers

Answer:

The answerr is the first one

Step-by-step explanation:

Answer:

ITs A. Got it right on my test

Step-by-step explanation:

HELP, i’m struggling and i don’t understand this

Answers

Answer:

x=49°

Step-by-step explanation:

2x-8=90°

= 2x=98°

= x=49°

At Dwayne's Swimwear, 75% of the 92 swimsuit styles are bikinis. How many bikini styles are there?

Answers

Answer:

69 styles

Step-by-step explanation:

75%= 3/4

92/4= 23 (1/4)

23x3= 69


Select the correct answer.
A restaurant owner wants to determine the effectiveness of his servers. The owner places a survey regarding the servers' effectiveness with
randomly selected customer bills.
What is the sample?
CA
The sample is all customers of the restaurant.
The sample is the randomly selected customers.
B.
C. The sample is the owner of the restaurant.
D
The sample is the servers.
Please help i'll mark you the brainlyest

Answers

Using the concept of sample, the correct option is:

B. The sample is the randomly selected customers.

---------------------------

Sampling:  

Suppose I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So i ask, lets say, 1000 randomly selected New York state residents whether they are Buffalo Bills fans, and expand this to the entire population of New York State residents.

In this case:

The sample is 1000 residents.The population is all New York State Residents.

---------------------------

In this question, a survey is passed to the customers, which are the sample. Thus, the correct option is:

B. The sample is the randomly selected customers.

A similar problem is given at https://brainly.com/question/24331410

Answer:

b

Step-by-step explanation:

3 markers cost $5.79.
Which equation would help determine the cost of 13 markers?

Answers

Which equations? There should be more than two sentences

Mr. Tola has a piece of wood that is
814
814

feet in length. He wants to cut it into pieces that are each
34
34

foot in length. How many
34
34

foot pieces of wood can Mr. Tola make?

Answers

Answer:

I think he can get 24ft pieces of wood im not sure dont hold me to it im not very good at math but I think thats right if it isnt i am sorry

Points a and b both lie on the line y=3x+7. Work out the missing y coordinate for a and the missing x coordinate for B?

Answers

Answer:

y coordinate = 13

x coordinate = -1

Step-by-step explanation:

Trail and error lol

The missing [x] - coordinate of point A is -2 and point B is -1.

What is the general equation of a Straight line?

The general equation of a straight line is -

[y] = [m]x + [c]

where -

[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].

[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.

We have the equation of line as -

y = 3x + 7

Refer to the graph attached of the equation -

y = 3x + 7.

Since, the graph is not given we will mark two random points on it. It can be seen that the missing [x] - coordinate of point A is -2 and point B is -1.

Therefore, the missing [x] - coordinate of point A is -2 and point B is -1.

To solve more questions on straight lines, visit the link below-

brainly.com/question/20400984

#SPJ5

A bag contains 8 blue marbles, 6 green marbles, 12 yellow marbles, and 10 orange marbles. A marble is drawn at random from the bag. What is the probability that the marble drawn will not be blue? Write your answer as a fraction in simplest form.

Answers

Answer:

7/9

Step-by-step explanation:

8 blue + 6 green + 12 yellow + 10 orange = total of 36 marbles

blue = 8

not blue = 36 - 8 = 28

p(not blue) = 28/36 = 7/9

Answer: 7/9

Need help as fast as possible please
I will mark BRAINLIST only for correct answers babes :)
Thank you!

Answers

Answer:

What is ur book called

I will edit my answer after this

Answer:

1. you move a shape to somewhere else by a number of units

2. the position of the book changes

3. no you are just moving the shape

The elephant eats 220 pounds of food a day costing $45. The tax on the food is 12%. How much does the zoo spend on elephant food.

Answers

Answer:

$50.4

Step-by-step explanation:

12% of 45 is 5.4

5.4 + 45 = 50.4

Hope I helped! Have a great day :)

NEED ASAP


The pair of angles 135 and 45 are:
A) Complementary
B) Supplementary
C) Neither

Answers

Answer:

Supplementary

Step-by-step explanation:

135+45 =180

So Option C

PLEASE HELP! 10 POINTS! I WILL MARK BRAINLIEST!! there are three separate questions, look at photo for the questions and information. *ignore the graph part, you don’t need to do that*

Answers

Answer:

12. Line F

Step-by-step explanation:

12. It was on the slope

What is the answer in fraction form?

-4/3÷9/5=?

Answers

Answer:

-20/27

Step-by-step explanation:

-4/3 ÷ 9/5

= -4/3 * 5/9

= -20/27

Hope it helps :)

Answer:

-4/3÷9/5= -0.74074074074

how many seconds in an hour ​

Answers

Answer:

there are 3,600 seconds in one hour.

3600 seconds are in an hour.

(60 x 60)

Conversion Factors -

1000 milliseconds = 1 second
60 seconds = 1 minute
60 minutes = 1 hour

composite figure? Check all that apply.
A = s2
A = bh
It wouldn’t let me type the 3 other answers so look in the images for the other ones and the shape.

Answers

Answer:

The answers are 2 and 4

Step-by-step explanation:

A=bh for Rectangle

A=1/2 r^2 π for Half circle

7. Find another rational number in lowest form that would be between each of the pairs of rational
numbers.
a)
7/6 4/3

Answers

Answer:

14/9 and in simplest form 1 5/9 or 1.5

Step-by-step explanation:

3/4. Please help if possible :)

Even if it is just one of them.

Answers

9514 1404 393

Answer:

  3. no (to both)

  4. yes (to both)

Step-by-step explanation:

3. see https://brainly.com/question/21676356 for an explanation

__

4. ΔADB ≅ ΔADC by the HL theorem, so all corresponding parts of the triangles are congruent.

Segment AD bisects both angle BAC and segment BC. So, point D lies on the perpendicular bisector of BC.

Yes, there is enough information to answer the questions.

PLEASE HELP PLESAE!!!!!!
Evaluate the expression when b=6 and y =-7

-b+9y

Answers

Answer:

-69

Step-by-step explanation:

3. What are the factors in the expression 4(5 + x)?

Answers

Answer:

Step-by-step explanation:

The factors are the parts that are being multiplied together.

4 and (5+x) are the two that are being multiplied and also the expression you get when you factor the distributed expression.

So the factors of 4(5+x) are:

4 and (5+x)

Factorise x^2+11x+18

Answers

Answer:

(x + 9)(x + 2 )

Step-by-step explanation:

Sum =11

Product = 18

Factors = 9 , 2

When you multiply (9*2 = 18) and when you add (9 +2 = 11).

x² + 11x + 18 = x² + 9x + 2x + (9*2)

                   =x(x + 9) + 2(x + 9)

                  = (x + 9)(x + 2 )

Answer:

(x+9) (x+2)

Step-by-step explanation:

x^2+11x+18

x^2+9x+2x+18

x(x+9)+2(x+9)

(x+9) (x+2)

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