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Elza [17]
2 years ago
15

The formula n(n+1)/2

Mathematics
1 answer:
mafiozo [28]2 years ago
5 0
The answer is in the attached image

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Mr. Cutler makes day bricks and clay tiles to sell at maker fairs. It takes him 10 minutes to make a brick and
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d

Step-by-step explanation:

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The price of a gallon of unleaded gas was $2.81 yesterday l. Today, the price rose to $2.88. Find the percentage increase
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2 years ago
Which phrase best describes a theorem in an axiomatic system? A.) the accepted meaning of a term B.) an assumption made with lit
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D

Step-by-step explanation:

In Maths, axioms are basically set of propositions from which we can derive true statements from logic. Then these statements are known as theorems.

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From the answer choices, we see D goes with this, hence D is the correct answer.

8 0
3 years ago
Read 2 more answers
A shoreline is eroding at a rate of 1/3 foot per 3 months.how many feet are eroding per year
krok68 [10]

Answer:

1 1/3 feet per year

Step-by-step explanation:

Steps:

1. How many months per year? 12.

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4 0
3 years ago
42x ​5 ​​ y ​4 ​​ =(−7x ​3 ​​ y)(B)
gulaghasi [49]
This is my very own step-step solution:

Step 1:
<span>Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : </span>

               <span> 42*x^5*y^4-((-7*x^3*y)*(b))=0 
</span>Step 2:<span>Equation at the end of step  1  :</span><span>
 
               ((42•(x5))•(y4))-((0-(7x3•y))•b) = 0
</span>
Step 3:Pulling out like terms :  

  <span> 42x5y4 + 7x3yb</span>  =  <span> 7x3y • (6x2y3 + b)</span> 

The correct is: 7x3y • (6x2y3 + b) = 0 <span> </span>

Quick Side Note:
<span>Binomial can not be factored as the difference of two perfect cubes
</span>
I hope this helps a little!

Hope you have a great day!
4 0
3 years ago
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