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
Zigmanuir [339]
3 years ago
10

-(9+11)+1=-1 is this answer correct?

Mathematics
1 answer:
lord [1]3 years ago
7 0

No, that answer is not correct.

Start with  (9 + 11) = 20  and go from there.


When you learn the "order of operations"  (PEMDAS), you learn
that the ' P ' means 'parentheses' . . . the first thing you're supposed
to do is get rid of them.  If there are only numbers inside, then you
do the inside arithmetic until there's only one number, and then you
can throw away the parentheses.
  
                                                            - (9 + 11) + 1

Add the numbers in the parentheses:  - (20) + 1

Throw away the parentheses:              - 20  +  1

Combine what you see there now:       - 19

Is that equal to  -1 ?
I don't think so.
The equation in the question is not true.
-1  is not the answer .
 
You might be interested in
Veronica copies her uncle's address and phone number into her contact list. His area code is 775. His ZIP code is 89507. Which s
ExtremeBDS [4]

Answer:It is 100 times as great in the ZIP code than it is in the area code

Step-by-step explanation:

step 1

Veronica 's uncle ZiP CODE = 89507 = The value of 5 here, represents 5 Hundred-----500

Veronica 's uncle Area code= 775 = The value of 5 here  represents 5 units--5

it will take a 100 times the value of 5 in the area code to be same as the value of 5 in the ZIP code

Step 2:

Therefore, we can say that the value of 5 is 100 times as great as the ZIP code than it is in the area code.

3 0
3 years ago
Find the diameter of each circle.
Vedmedyk [2.9K]

Answer:

<em>Diameter Length: ( About ) 5.4 km; Option B</em>

Step-by-step explanation:

~ Let us apply the Area of the Circle formula πr^2, where r ⇒ radius of the circle ~

1. We are given that the area of the circle is 22.9 km^2, so let us substitute that value into the area of the circle formula, solving for r ( radius ) ⇒ 22.9 = π * r^2 ⇒ r^2 = 22.9/π ⇒ r^2 = 7.28929639361.... ⇒

<em>radius = ( About ) 2.7</em>

2. The diameter would thus be 2 times that of the radius by definition, and thus is: 2.7 * 2 ⇒ ( About ) 5.4 km

<em>Diameter Length: ( About ) 5.4 km</em>

5 0
3 years ago
What is the sum of 3+(-5)?
pantera1 [17]

Answer:

Your answer is -2 hope this helps

7 0
3 years ago
Read 2 more answers
To avoid detection at customs, a traveler places 6 narcotic tablets in a bottle containing 9 vitamin tablets that are similar in
lukranit [14]

Answer: \dfrac{26}{27}

Step-by-step explanation:

Given : To avoid detection at customs, a traveler places 6 narcotic tablets in a bottle containing 9 vitamin tablets that are similar in appearance.

Proportion of success : p=\dfrac{6}{9}=\dfrac{2}{3}

Sample size taken by customs official : n= 3

Let x be a binomial variable that represents the tablets in the bottle.

Using Binomial probability formula :-

P(X=x)=^nC_xp^x(1-p)^{n-x}

The probability that the traveler will be arrested for illegal possession of narcotics =P(x\geq1)=1-P(x=0)

1-^3C_0(\dfrac{2}{3})^0(1-\dfrac{2}{3})^3\\\\=1-(1)(1)(\dfrac{1}{3})^3\ [\becuase ^nC_0=1]\\\\=1-\dfrac{1}{27}=\dfrac{26}{27}

Hence, the probability that the traveler will be arrested for illegal possession of narcotics = \dfrac{26}{27}

8 0
3 years ago
Darcy house is 6 times as far from school as her friends house. if her friends house is 3/4 mile from school how many miles from
laiz [17]
3.75 miles because 3/4 is .75 in money and the 3 is howm many miles

6 0
3 years ago
Other questions:
  • the bakers at healthy bakery can make 270 bagels in 10 hours. how many bagels can they bake in 19 hours? what was the rate per h
    14·1 answer
  • The area of a rectangular wall of a barn is 260 square feet. Its length is 6 feet longer than twice its width. Find the length a
    13·1 answer
  • If I traveled 2269 miles for $328.00 in gas how many miles per gallon
    9·1 answer
  • Usé the distributive property to rewrite the expression 7bx + 7by as an equivalent expression
    14·1 answer
  • 27. The scatter plot shows the number of votes cast in U.S. presidential elections since 1932.
    8·1 answer
  • A bag contains 8 blue coins and 7 red coins A coin is removed at random what is the probability that the coin removed is blue
    15·1 answer
  • Manny has 48 feet of wood. He wants to use all of it to create a border around a garden. The equation 2 l plus 2 w equals 48 can
    8·2 answers
  • Rewrite the equation by completing the square.
    6·1 answer
  • Nine over twelve equals fifteen over n<br> A. 18<br> B. 20<br> C. 22<br> D. 17
    15·1 answer
  • Stanley needs to purchase a cylindrical silo. He wants the radius to be 6 ft. The silo should hold 1700 cubic feet when full. Ho
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!