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
vladimir1956 [14]
3 years ago
10

Help me out here, I'll give brainlist for explanation.

Mathematics
1 answer:
LenaWriter [7]3 years ago
5 0

Answer:

See below.

Step-by-step explanation:

This is focusing on the order of operations.

PEMDAS = Parenthesis, exponents, multiplication, division, addition, subtraction.

40 ÷ [(18 - 9) - (13 - 12)]

40 ÷ [9 - 1]

40 ÷ 8

5

[(13 - 9) · 3] + [(14 - 8) · 2]

[4 · 3] + [6 · 2]

12 + 12

24

You might be interested in
PLZ HELP ASAP
svet-max [94.6K]
Answer is D:
e + 5 = 3e - 11

2e = 16
e = 8

Ella is 8 years old
Jamie is 8+5 = 13 years old
6 0
3 years ago
How to calculate square root?
OLEGan [10]
To calculate the square root, you can either use the √symbol on a calculator or you can manually find it using Prime Factorization. For non-perfect squares, Prime Factorization is the way to go. 
 
The first two steps work for solving large perfect squares as well.

1. Divide your number into perfect square factors.

2. Take the square roots of your perfect square factors. 

3. If your number doesn't factor perfectly, reduce your answer to simplest terms. 

4. If needed, estimate. In some cases if you have memorized some of the square roots, you can estimate where the number would be. 
ie.  \sqrt{63}       you know that 7^2 =49 and 8^2 = 64,  so you can estimate that the \sqrt{63} would be between 7 and 8 but closer to 8.

5. <span>Alternatively, reduce your number to its lowest common factors as your first step.</span><span> Finding perfect square factors isn't necessary if you can easily determine a number's prime factors (factors that are also prime numbers).
ie.  </span>\sqrt{45}
 =  \sqrt{9*5}
 = \sqrt{3*3*5}
 =   3 \sqrt{5}

Hope this helped!!!
6 0
3 years ago
Find A ∩ B if A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}.
Korvikt [17]
Their intersection is 7 because is you look at the coordinates of both A and B they have 7 in common
8 0
3 years ago
Enter the decimal 1.81 repeating as an improper fraction in simplest form.​
Elodia [21]

Answer:

1 9/11

Step-by-step explanation:

1.81 repeating is the equivalent to 1 9/11

6 0
3 years ago
What is the solution to the inequality?<br><br> −4x−8&gt;−20
Sliva [168]
<span>−4x−8>−20
Add 8 to both sides
-4x>-12
Divide both sides by -4
Final Answer: x<3</span>
4 0
3 years ago
Other questions:
  • Correct answers only please! If you don't know the answer, then please don't guess or say what you think it is.
    5·2 answers
  • Brian completed 34 free throws and missed 16.
    11·2 answers
  • Which of the following would justify step 6?
    5·1 answer
  • A triangle has sides with lengths of 6mm 10mm and 8mm is it a right triangle
    14·2 answers
  • Use the distance formula to find the distance to the nearest 10th from R(7,-2) to w(-2,3).
    9·1 answer
  • Are the random variables Xi and Xj , where i &lt; j, independent? Recall that two random variables X and Y are independent if P[
    9·1 answer
  • How do we get x+2=6 from 3x+6=18 solve for x and explain how we get that equation
    7·2 answers
  • Find the Area of the figure below, composed of a rectangle and a semicircle. Round to the nearest tenths place.
    10·1 answer
  • Domain and range f(x) = -x 4+ x 2- x - 4
    5·1 answer
  • Simplify the linear expression.<br> −4x+5(−5x−1)<br> plz help
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!