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
vredina [299]
2 years ago
8

How much does this equal?

Mathematics
2 answers:
kari74 [83]2 years ago
7 0
1<span> </span>Set up the long addition.

12+42

2<span> </span>Calculate 2 + 2, which is 4.

12+424
3<span> </span>Calculate 1 + 4, which is 5.

12+4254
4<span> </span>Therefore, 12 + 42 = 54.
<span /><span><span><span><span><span><span>54</span></span><span /></span></span><span /></span><span>

</span></span>
kvv77 [185]2 years ago
6 0
Hey there

Solutions 

12 + 42 
= 54 

CHECK YOUR WORK 
54 - 12 
= 42 

The answer was correct 

You might be interested in
The corners of a meadow are shown on a coordinate grid. Ethan wants to fence the meadow. What length of fencing is required?
Nuetrik [128]

Answer:

34.6 units

Step-by-step explanation:

The lenght of fencing required is the total distance between point A to B, B to C, C to D, and D to A. That is the distance between all 4 corners of the meadow.

The coordinates of the corners of the meadow is shown on a coordinate plane in the attachment. (See attachment below).

Let's use the distance formula to calculate the distance between the 4 corners of the meadow using their coordinates as follows:

Distance between point A(-6, 2) and point B(2, 6):

AB = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

A(-6, 2)) = (x_1, y_1)

B(2, 6) = (x_2, y_2)

AB = \sqrt{(2 - (-6))^2 + (6 - 2)^2}

AB = \sqrt{(8)^2 + (4)^2}

AB = \sqrt{64 + 16} = \sqrt{80}

AB = 8.9 (nearest tenth)

Distance between B(2, 6) and C(7, 1):

BC = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

B(2, 6) = (x_1, y_1)

C(7, 1) = (x_2, y_2)

BC = \sqrt{(7 - 2)^2 + (1 - 6)^2}

BC = \sqrt{(5)^2 + (-5)^2}

BC = \sqrt{25 + 25} = \sqrt{50}

BC = 7.1 (nearest tenth)

Distance between C(7, 1) and D(3, -5):

CD = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

C(7, 1) = (x_1, y_1)

D(3, -5) = (x_2, y_2)

CD = \sqrt{(3 - 7)^2 + (-5 - 1)^2}

CD = \sqrt{(-4)^2 + (-6)^2}

CD = \sqrt{16 + 36} = \sqrt{52}

CD = 7.2 (nearest tenth)

Distance between D(3, -5) and A(-6, 2):

DA = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

D(3, -5) = (x_1, y_1)

A(-6, 2) = (x_2, y_2)

DA = \sqrt{(-6 - 3)^2 + (2 - (-5))^2}

DA = \sqrt{(-9)^2 + (7)^2}

DA = \sqrt{81 + 49} = \sqrt{130}

DA = 11.4 (nearest tenth)

Length of fencing required = 8.9 + 7.1 + 7.2 + 11.4 = 34.6 units

8 0
2 years ago
What type of reaction is shown below? Check all that apply. 2Na + Cl2 → 2NaCl synthesis decomposition combustion
const2013 [10]

Answer: This is a type of Synthesis reaction.

Explanation:

  • Synthesis reaction is a type of chemical reaction in which two or more substances combine to form a single substance.

A+B\rightarrow AB

  • Decomposition reactions are a type of chemical reactions in which a substance breaks down into two or more substances.

AB\rightarrow A+B

  • Combustion reaction is a type of chemical reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide and water.

Hydrocarbon+O_2\rightarrow H_2O+CO_2

For the given reaction:

2Na(s)+Cl_2(g)\rightarrow 2NaCl

Here, 2 substances are combining together to form a single substance. Hence, it is considered as a synthesis reaction.

8 0
3 years ago
Read 2 more answers
HEEEEEEEEEEELLLLLLLLPPPPPPPPPPP. PPPPPPLLLLLLEEEEEEAAAAASSSSSEE When Laura started her career at the age of 24, she deposited $8
Irina18 [472]

Answer:

she mad 52,000

Step-by-step explanation:

she made 52,000 by working by her job

6 0
3 years ago
Consider the ratio 3:5.can you create an equivalent ratio by adding the same number to each quantity in the ratio?Explain
soldi70 [24.7K]

Answer: no

Step-by-step explanation: the ratio 3:5 can be written as 3/5 which 3/5 is not equal to 4/6 or 7:9

8 0
2 years ago
Timmy writes the equation f(x) = x – 1. He then doubles both of the terms on the right side to create the equation g(x) = x – 2.
geniusboy [140]
<span> The line of g(x) is less steep and has a lower y-intercept</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • Biking at 8mph it takes Kristen 1/2 hour to reach the train station to go to work. Kristen then takes the train to work and it t
    8·2 answers
  • There are 24 students on the field trip. How many parents will be needed to put them into groups of 3?
    9·1 answer
  • To generate new leads for business, Gustin Investment Services offers free financial planning seminars at major hotels in Southw
    8·1 answer
  • Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the trian
    7·1 answer
  • Solve the equation to this problem
    8·2 answers
  • Which ratio forms a proportion with 7/4?<br><br>A. 49 <br>B.1512 <br>C. 25 <br>D. 36
    8·1 answer
  • Let f(x)=x+1 and g(x)= x^2 – 2. Find f (x)· g(x)
    15·1 answer
  • Hey can someone please help me or help me understand
    10·1 answer
  • 2x + 2x + 5x + 5x= please answer quick it's very hard and I like the game to answer please and thank you.
    7·1 answer
  • Round each number to the<br> nearest 10 and 100.<br> 444 <br> 372<br> 847<br><br> Help please
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!