1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mars2501 [29]
2 years ago
9

Help I need the answer so I won’t fail

Mathematics
2 answers:
Katarina [22]2 years ago
7 0

Answer:

18

Step-by-step explanation:

16-18:(2+1)+2^3

We must use the BEDMAS rules (Brackets, Exponents, Division, Multiplication, Addition, Subtraction)

We must first calculate what's in the brackets:

2 + 1 = 3

So the new expression is:

16-18:3+2^3

Next, we calculate the exponent:

2^3 = 8

So our expression is now:

16-18:3+8

Next we divide:

18:3 = \frac{18}{3} = 6

Our expression is now:

16 - 6 + 8

Then we subtract:

16 - 6 = 10

The new expression:

10 + 8

And finally we add:

10 + 8 = 18

anyanavicka [17]2 years ago
6 0

Answer:

9

Step-by-step explanation:

We have to solve in order to find out if Sam is correct

Remember PEDMAS:

For Multiplication, division and addition, subtraction, do what appears first left to right

Parenthesis

Exponent

Division

Multiplication

Addition

Subtraction

16 - 18 + (2+1)+2^3

Parenthesis first: 2+1 = 3

16 - 18 + 3 + 2^3

Exponent next: 2^3 = 8

Subtraction (it's on the left) : 16-18 = -2

Addition: -2 + 3 = 1

Addition : 1 + 8 = 9

<em>Sam is not correct, the answer is </em><em>9, </em><em>not 16.</em>

Hope this helps :)

Have a great day!

You might be interested in
A lidless box is to be made using 2m^2 of cardboard find the dimensions of the box that requires the least amount of cardboard
Jlenok [28]
1.8, Problem 37: A lidless cardboard box is to be made with a volume of 4 m3 . Find the dimensions of the box that requires the least amount of cardboard. Solution: If the dimensions of our box are x, y, and z, then we’re seeking to minimize A(x, y, z) = xy + 2xz + 2yz subject to the constraint that xyz = 4. Our first step is to make the first function a function of just 2 variables. From xyz = 4, we see z = 4/xy, and if we substitute this into A(x, y, z), we obtain a new function A(x, y) = xy + 8/y + 8/x. Since we’re optimizing something, we want to calculate the critical points, which occur when Ax = Ay = 0 or either Ax or Ay is undefined. If Ax or Ay is undefined, then x = 0 or y = 0, which means xyz = 4 can’t hold. So, we calculate when Ax = 0 = Ay. Ax = y − 8/x2 = 0 and Ay = x − 8/y2 = 0. From these, we obtain x 2y = 8 = xy2 . This forces x = y = 2, which forces z = 1. Calculating second derivatives and applying the second derivative test, we see that (x, y) = (2, 2) is a local minimum for A(x, y). To show it’s an absolute minimum, first notice that A(x, y) is defined for all choices of x and y that are positive (if x and y are arbitrarily large, you can still make z REALLY small so that xyz = 4 still). Therefore, the domain is NOT a closed and bounded region (it’s neither closed nor bounded), so you can’t apply the Extreme Value Theorem. However, you can salvage something: observe what happens to A(x, y) as x → 0, as y → 0, as x → ∞, and y → ∞. In each of these cases, at least one of the variables must go to ∞, meaning that A(x, y) goes to ∞. Thus, moving away from (2, 2) forces A(x, y) to increase, and so (2, 2) is an absolute minimum for A(x, y).
5 0
3 years ago
Which expression is equivalent to -6(-2/3+2x) <br> -4-12x<br> -4+2x <br> 4-12x<br> 4+12x
Basile [38]
C. Is your answer to the question
4 0
3 years ago
Read 2 more answers
Students in Mr. Eaton’s class must choose a person from a list of 30 people and then write an essay about that person. The list
padilas [110]

Answer:

3/10 or 30%

Step-by-step explanation:

the probability of a...

writer = 13/30

painter = 9/30 or 3/10

musician = 6/30 or 1/5

photographers = 2/30 or 1/15

7 0
2 years ago
PLEASE HELP ME!!!!!! I NEED HELP REALLY FAST!! I WILL BE MARKING BRAINLIEST!!!!!!
viva [34]

Common difference is +6 and I think nth term is 5 (pretty sure it's always the first term) and the second one im not so sure about I'm sorry.

4 0
3 years ago
Read 2 more answers
Which of the following statements about using a protractor are correct?
DedPeter [7]
The protractor measures angles that open from left or from the right

3 0
3 years ago
Read 2 more answers
Other questions:
  • 1. Choose the answer that correctly expresses this ratio in fraction form.
    6·1 answer
  • Before soccer practice, Laura warms up by jogging around the outside of the entire soccer field. Measures 80meters by 120meters
    8·1 answer
  • A store is having a sale on jelly beans and trail mix. For 6 pounds of jelly beans and 2 pounds of trail mix, the total cost is
    15·1 answer
  • Bernard is training for a race . He performs the same exercise routine every day. In a 7 day week does Bernard spend more time w
    14·1 answer
  • !!PLEASE HELP !!<br> f(x)= |3x+5|+6<br> g(x)= 7<br> Find (f+g)(x).
    11·1 answer
  • The weight of a Great blue heron, a type of bird, can grow to around 4 pounds, but can vary. Let W be a random variable that rep
    9·1 answer
  • There are 550 people at the school carnival.
    10·1 answer
  • Which pair of polygons is similar
    7·1 answer
  • Simplify the following expression
    11·1 answer
  • Plz help ASAP!!!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!