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
Mama L [17]
3 years ago
11

Evaluate [(21 + 6) − 3^2] ÷ 9 ⋅ 2.

Mathematics
2 answers:
Vlada [557]3 years ago
6 0
 [(21 + 6) − 3^2] ÷ 9 ⋅ 2=[(27) − 9] ÷ 9 ⋅ 2
=18 ÷ 9 ⋅ 2
= 2 . 2
= 4
Talja [164]3 years ago
6 0
[(21 + 6) − 3^2] ÷ 9 ⋅ 2

= [27 − 3^2] ÷ 9 ⋅ 2

= [27 − 9] ÷ 9 ⋅ 2

= 18 ÷ 9 ⋅ 2

= 2 ⋅ 2

= 4

Hope it helps!
You might be interested in
Find the missing angle.
Sphinxa [80]

Answer:

m\angle XYV=135^{\circ}

Step-by-step explanation:

Notice that m\angle XYV=m\angle XYW+m\angle VYW.

The diagram already marks m\angle VYW=80^{\circ}, so we just need to find m\angle XYW.

\angle TYU and \angle XYW are vertical angles, which means they are equal in measure.

Therefore,

m\angle TYU=m\angle XYW=6x+7

Since there are 180^{\circ} on each side of a line, we have the following equation:

m\angle XYW+m\angle VYW+m\angle UYV=180^{\circ},\\6x+7+13+4x+80=180,\\10x+20=100,\\10x=80,\\x=8.

Plugging in x=8, we have:

m\angle XYW=6(8)+7=55^{\circ}.

Therefore,

m\angle XYV=55^{\circ}+80^{\circ},\\m\angle XYV=\fbox{$135^{\circ}$}.

5 0
3 years ago
Why does the pressure go down when the velocity of a fluid increase?<br> Please help asap!
Hunter-Best [27]

Answer:It is the conversion of one form of energy to another. If a fluid flow is restricted, the velocity of the fluid reduces, thereby the kinetic energy decreases and the equivalent amount of energy is increased as the pressure energy, which therefore increases the point pressure of the fluid.

Step-by-step explanation:

7 0
2 years ago
For which value of x is the equation 2(1 + x) = x + 3 true?<br><br> A) 1<br> B) 2<br> C) 3<br> D) 4
amm1812

Answer:

A) 1

Step-by-step explanation:

To solve, just plug in the numbers to the equation for x until both sides are equal to each other.

Plug in 1:

2(1 + x) = x + 3

Let x = 1:

2(1 + 1) = 1 + 3

Solve. Remember to follow PEMDAS. First, add parenthesis, then multiply. On the other side, add:

2(1 + 1) = 1 + 3

2(2) = 4

4 = 4 (True)

A) 1 is your answer.

~

5 0
3 years ago
Which is equivalent to 56c^16/162c^3 squared after it has been simplified completely?
Oxana [17]

Answer:

B

Step-by-step explanation:

Just took the test plz mark brainliest

4 0
3 years ago
Multiplying and dividing in scientific notation (picture provided) Please give the answer in scientific notation
solmaris [256]

Answer:

7.8*10^7

1.0 * 10^4

Now divide 7.8/1.0 and the power goes up to be subtracted

=7.8 * 10^(7-4)

= 7.8 * 10^3

7 0
3 years ago
Read 2 more answers
Other questions:
  • miss. Nikkel want to divide her class of 23 students into 4 equal teams.is this reasonable?why or why not
    7·2 answers
  • Some one factor 5x^2+23x+26
    10·2 answers
  • Hannah purchases n magazines for $0.53 each.Write the expression for the total cost?
    11·1 answer
  • If Judy completes a puzzle by herself, it takes her 3 hours. Working with Sal, it only takes them 2 hours.What is the missing va
    5·2 answers
  • 3 3/10 - 7/10 please help
    13·2 answers
  • Please help!! 30 pts! thanks!
    5·2 answers
  • List the kinds of measurements have you worked with so far. Describe what area is. Describe what volume is.
    12·1 answer
  • How do you solve the problem 2247 divided by 7?
    11·2 answers
  • The Thompson family is buying a car that can travel 70 miles
    11·1 answer
  • What are the values of x and y?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!