Mathematics Middle School

It order of operations can someone help me

Answers

Answer 1

Answer:

-3

Step-by-step explanation:

-3^2 +(-4+7)(2)

PEMDAS

paranthesis first

-3^2 + (3)(2)

exponents next

-9 + (3)(2)

-9 + 6

-3

Related Questions

HELP PLEASE HELP!!!!!

Answers

Answer:

(i): A triangle where all three sides are equal and the same.

(ii): A triangle where all three sides are unequal in length.

(iii): A triangle that has two sides of equal length.

(iv): A triangle where all three internal angles are acute(they measure less than 90 degrees.

(v): A triangle where all three internal angles are obtuse(measure above 90 degrees).

(vi): A triangle where one internal angle is a right angle(90 degrees).

Hope this helps

Step-by-step explanation:

Which expression is equivalent to 2(d + 7)? ASAP PLEASE

Answers

It is c I did the test/quiz

You multiply 2 by d then and then by 7 making 2d+14

Please help with this one make sure you tell me which one you are doing

Answers

Answer:

For the first one 13 7/8 - 9 3/4= 4 1/8

Step-by-step explanation: turn to an improper faction it helps me

Answer:

4 1/8

Step-by-step explanation:

13-9=4

3/4=6/8

7/8-6/8=1/8

13 7/8-9 3/4=4 1/8

Answer question here ASAP :))

Answers

Answer:

y = - 2x - 7

Step-by-step explanation:

In the scale used on a blueprint, 1/2 inch represents 4 feet. On the blueprint, what is the length of a room with an actual length of 28 feet?

Answers

Answer:

3 1/2"

Step-by-step explanation:

All I did was multiply 4 into 28, take that variable and divided it by 2

Answer:

3 1/2

Step-by-step explanation:

Sorry this is late.

Which expression represents the difference (4b+7)−(6b−3)? show your work..

Answers

Answer:

-2b + 10

Step-by-step explanation:

(4b + 7) - (6b - 3)

4b + 7 - 6b + 3

-2b + 10

-2b + 10 is the answer

PLEASE HELP!!!!!!!

Which of the following functions represent exponential decay?
y = -2 x
y =(1/2)^ x
7 = 2^ 0.5x
y = 2^x

Answers

Answer: C) y=2^0.5x

Step-by-step explanation:

Trust me pls

Consider the number 3,520.4. Which statement is correct?
(Look at the photo I attached to see the choices) please help me i am confused!!!

Answers

I believe it is the second answer

Answer:

To divide the number by 100 move the decimal point two places to the left

Plsss helppp i rlly need help with this math!!!

Answers

14. 11.2 13. 150 hope this helps

Answer:

13.150

14. 11.2

Step-by-step explanation:

Have a good day :)

Hello! sorry need help again. :) Please solve the problem below...

Answers

RS goes with TS. TU goes with RQ. QS goes with US.

To get to the campsite Rick has to canoe 10 miles, hike 2 miles, and then canoe another 5 miles. If Rick canoes at a steady rate of 5 mph and hikes at a constant 2 mph, how long will it take Rick to get to the campsite?

Answers

Answer:

I'd say it will take him around 4 hours

Step-by-step explanation:

4 hours 10/5=2 2/2=1 5/5=1 2+1+1=4

Select the expressions that are equivalent to 12n – 8. Select all that apply.
A. 3n + 4 + 3n + 4 + 4n
B. 11n + 4 + n –12
C. 6(6n – 2)
D. 4(3n – 2)
E. 4n + 22 – 12 + 8n

Answers

Answer:

B and D

Step-by-step explanation:

B= 4(3n-2)

D=12n-8 which equals 4(3n-2)

Option B 11n + 4 + n –12 and D 4(3n – 2) are the expressions that are equivalent to 12n-8.

What are equivalent expressions?

Those expressions that might look different but their simplified forms are the same expressions are called equivalent expressions. To derive equivalent expressions of some expressions, we can either make it look more complex or simple. Usually, we simplify it.

We are given an expression as; 12n – 8.

A. 3n + 4 + 3n + 4 + 4n

= 3n+3n+4n+4+4

=10n+8

B. 11n + 4 + n –12

=11n+n+4-12

=12n-8

C. 6(6n – 2)

=36n-12

D. 4(3n – 2)

=12n-8

E. 4n + 22 – 12 + 8n

=4n+8n+22-12

=12n+10

Therefore, Option B 11n + 4 + n –12 and D 4(3n – 2) are the expressions that are equivalent to 12n-8.

Learn more about expression here;

https://brainly.com/question/14083225

#SPJ2

The graph below represents a recent 10 meter race between two remote control cars.

A graph titled Remote Control Car Race has seconds after race start on the x-axis and distance from start line (meters) on the y-axis. A line labeled red car goes through (3, 2) and (6, 4). A line labeled blue car goes through (3, 0) and (5, 2).

Which statements about the race are true? Check all that apply.
The red car won the race because it started above the blue car.
The cars crashed at 9 seconds into the race because that is the point of intersection, and neither car continued on after that point in time.
The blue car passed the red car at 6 m into the race because that is the point of intersection, and the blue car has a greater distance than the red car after that time.
The blue car is faster because the slope of its line is steeper than the slope of the line representiong the red car.
The blue car started 3 seconds late because it has an x-intercept of (3, 0) and x represents the time and y represents the distance from the starting line.

Answers

Answer:

C D E

Step-by-step explanation:

I gottchu guys :)

A recent 10-meter race between two remote-control cars is seen in the graph below. The race-related claims in A, B, and C are accurate.

What is a graph?

A diagram depicting the relationship between two or more variables, each measured along with one of a pair of axes at right angles.

The correct statements are;

At 6 meters into the race, the blue car overtook the red car because, at that moment, the blue car had a bigger distance than the red car.

Due to the greater slope of the blue vehicle's path compared to the red car's line, the blue car is faster.

Because the blue car's x-intercept is at (3, 0), where x stands for time and y for distance from the starting line, it began 3 seconds later than the other cars.

Hence Statements B, C, and D about race are true.

To learn more about the graph, refer to the link;

https://brainly.com/question/14375099

#SPJ2

Rewrite the equation A = 3B in terms of “B =”.

Answers

Divide both sides by 3
B = A/3

Answer:

B=A/3

Step-by-step explanation:

1. Given

A = 3B

2. Divide both sides by 3.

A/3 = B

3. Switch sides.

B = A/3

Evaluate the expression 45g if: gEvaluate the expression 45g if: g=1/5

Answers

Answer:

= 9

Step-by-step explanation:

45 (1/5) = 9

same thing as dividing by 5

Please help with this question! Look at the images, there are two you have to answer!! PLEASE HELP!

Answers

The answer is...

1. Is A
2.Is B

Hope This helps!!

Answer all and I give brainliest

Answers

6. Choice b
7. $75 per hour
8. Don’t know

pick the measure that is equivalent to 5 meters here are the answer choices A.50 millimeters B.500 millimeters C. 50 centimeter D.500 centimeter

Answers

Answer:

Step-by-step explanation:

1m=100cm

so 5m x 100=500 cm

-6(-n+4)=18

this is for my friend lol i’m helping him w his assignment

Answers

Answer:

-6(-n+4)=18

6n-24=18

6n-24+24=18+24

6n=42

n=7

Step-by-step explanation:

Harry is using a total of 34 feet of lumber to make a bookcase. The left and right sides of the bookcase are each 5 feet high. The top, bottom, and two shelves are all the same length, labeled w. How long is each shelf?

Answers

Answer:The most frequently used quality materials for custom-built wood shelves are 3/4” thick plywood, poplar, or pine; definitely avoid the melamine-laminated composite shelving and MDF.

Step-by-step explanation:

3/4 would be the answer

Help me please.........

Answers

Okay these answers are easy... oh god what is that I’m sorry but lord...

(-3z+5)(-3) can you guys help with this one?

Answers

Without knowing the value of z (9z-15) is the answer of the equation in simplest form

9x-15 is the answer for this question because -3z*-3 is 9z and 5*3 is 15

Melissa is making a piece for a stained glass window that has the shape and measures shown below. Point C is the center of the partial circle that forms one corner of the stained glass piece. Which area is the closest to the area of the stained glass piece in square inches? Use 3.14 for π

Answers

Answer:

184.26 in 2

Step-by-step explanation:

Answer:

184.26

Step-by-step explanation:

Two similar triangles are shown
27.2
E E
С
What is the measure of ZD in degrees?
A
27.2
B
31.4
С
35.6
OD
62.8

Answers

Answer: D

Step-by-step explanation:

Because they are similar all u have to do is add the sides

It’s 62.8 definitely

A weightlifter is using a weightlifting bar that weighs 45 pounds. If x represents the amount of weight that the weightlifter puts on the bar and y represents the total amount that the weightlifter lifts, with the weight of the bar included, which of these functions models this situation

Answers

Choice c because 45 is the start weight while x changes

I think it A hope this helps

A business owner bought a product for $20. The business owner sold the product for $32. By what percent was the product marked up?

Answers

Answer:

60%

Step-by-step explanation:

Answers: 60%

Explaination: You divide 32 by 20 get 1.6

which leaner equation represent the graph

Answers

y= -3x - 2

Step-by-step:
The points graphed are (0,-2) and (-1,1)
We can see that the point goes up by 3 and left by 1. Because the line is in hemispheres 2 and 4 mostly, it is a negative line.

The equation to find the coefficient of the variable x is rise/run. The line rises up three, and runs left negative. This makes that equation 3/-1, or simply -3 when simplified.

To find the term, we have to find where the line crosses the y axis. That’s when the x value of the point is 0. (0,-2) is where the line crosses the x axis, making the term -2.

So, y= -3x - 2

David went for a run in his town.
• He ran from his house to the school, which is 1.2 miles.
• Then he ran 3 laps around the school track. Each lap is 0.25 miles.
• Then he ran halfway to the gas station. The distance from the school track to the gas station is 2.68 miles
Finally he ran straight home, which is 0.49 miles.
What is the total distance David ran?

Answers

1.2 plus .75 plus 1.34 plus .49 which is 3.78

Find the quotient of 3/5 and 9/10. Express your answer in simplest form.

Answers

Answer: 2/3

Step-by-step explanation:

3/5 divided by 9/10 = 3/5 x 10/9

I got 30/45 which simplifies to 2/3

2/3

3/5 divided by 9/10 = 3/5 x 10/9

when I didivde 3/5 by 10/9 i got 30/45 which is simplified to 2/3

PLEASE ANsWer THiS
Question in picture ⬇️

There are two

Answers

Answer:

dude you have complicated questions

Step-by-step explanation:

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