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
defon
3 years ago
15

Place parentheses and brackets in the expression below so that it equals 18.

Mathematics
1 answer:
Ahat [919]3 years ago
5 0

Answer:

18

Step-by-step explanation:

\{{2}^{3} (4 \div 2)  \}+ 2 \\  \\  =  \{{2}^{3} \times 2 \} + 2 \\  \\  =  {2}^{3 + 1}  + 2 \\  \\  =  {2}^{4}  + 2 \\  \\  = 16 + 2 \\  \\  = 18

You might be interested in
The square root of 42. The answer needs to be simplified. The problem must be solved by using perfect squares. The answer can't
Rasek [7]
From what I can tell, this can't be simplified, because there are no factors of 42 that are perfect squares.  I would leave it as the square root of 42.
5 0
3 years ago
Find the length of AB?
vampirchik [111]

Given:

The figure of a right triangle.

To find:

The length of AB.

Solution:

In a right angle triangle,

\cos \theta=\dfrac{Base}{Hypotenuse}

Using this trigonometric ratio for the given triangle, we get

\cos A=\dfrac{AB}{AC}

\cos (60^\circ)=\dfrac{AB}{10}

\dfrac{1}{2}=\dfrac{AB}{10}

\dfrac{1}{2}\times 10=AB

5=AB

Therefore, the length of AB is 5 units.

7 0
3 years ago
A hose fills a hot tub at a rate of 3.74 gallons per minute. How many hours will it take to fill a 289- gallon hot tub?
Inessa05 [86]
I think it would take about 1 hour and 17 minutes
6 0
3 years ago
Order the decimal greatest to least 8.31,8.295, 8.06,8.3
Mama L [17]

Answer:

Least 8.06, 8.295, 8.3, 8.31 Greatest

5 0
2 years ago
Read 2 more answers
3x+4=8y-3 5x+1=10y-4
dsp73

Answer:

x-3 and y=2

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Josie had a choice of 3 breads, 4 choices of meat, and 4 choices of cheeses to make a sandwich.
    14·2 answers
  • Does anyone know this?
    13·1 answer
  • I need help on this question plz
    14·2 answers
  • The Sugar Sweet Company is going to transport its sugar to market. It will cost
    6·1 answer
  • ASAP NEED ANSWERS :) PLEASEEEEEEEE
    8·2 answers
  • Answer please I will give 12<br> points <br> Thanks
    10·2 answers
  • A person who is six feet tall casts a 3-foot-long shadow. A nearby pine tree casts a 15-foot-long shadow.
    9·1 answer
  • The cheetah runs 100 miles in 4 hours. What speed does it run
    7·2 answers
  • Solve the inequality. -2(2x + 2) ≥ −4x − 12
    7·1 answer
  • The grades on a language midterm at Loyola are roughly symmetric with u = 69 and 0 = 4.0.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!