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Romashka-Z-Leto [24]
3 years ago
7

David says that he can apply the commutative and

Mathematics
1 answer:
Zolol [24]3 years ago
6 0

Hope this helps! I had hw similar to this... so..

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Look for a pattern and complete the conjecture.
denis-greek [22]

Answer:

390

Step-by-step explanation:

The formula of sum of arithmetic sequence is \frac{n}{2} (a+Tn)

The number of this series are 2, 4, 6, 8, 10, 12, .  .  .  .  , 60.

The first term ( a ) = 2

The 30th even number is 60

The Tn is the term of the sequence

So the equation is

30/2 x ( 2 + T_{30})

T_{30} = 60

30/2 x ( 2 + 60 )

30/2 x (62)

1860/2

390

4 0
3 years ago
Read 2 more answers
The probability of picking two black marbles from a box at random without replacement is 1091 . The probability of drawing a bla
Nana76 [90]
<u><em /></u><em />The correct answer to the question above is 4/13. Below it shows how it's achieved...<u><em>

EQUATION:</em></u>
 
P(A|B) = <u>P(A ∩ B)
</u>                 P(B)
<u>
</u>Step 1: Identify 
P(B) = 5/14 
P(A ∩ B) = 10/91
<u>
</u>Step 2: Insert into the equation and Solve
10/91 ÷ 5/14
Use reciprocal to divide
10/91 × 14/5 
Simplify the answer 
140/455
Simplified (Final Answer)
4/13 


<u>
</u>
<u>

</u>
5 0
3 years ago
Read 2 more answers
Bradley cut a square hole out of a block of wood in wood shop. if the block was cube-shaped with side lengths of 8 inches, and t
borishaifa [10]
8^3-3^3
512-27
485 cubic inches
3 0
3 years ago
-4 3/5 divided by 1 1/5 as a mixed number or simplified
WITCHER [35]
-23 over 5 ÷ 11 over 5
-23 × 5 over 5 × 5
-115 over 55


Therefore, your answer would be: -2 and 1 over 11
4 0
4 years ago
Read 2 more answers
Henlo please help!?! Thanks!!<br> ASAP? :D
erik [133]

Answer:

6 feet

Step-by-step explanation:

Volume = w × h × l

120 = 4 × 5 × l

l = 120 / 20

l = 6 ft

4 0
3 years ago
Read 2 more answers
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