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olga nikolaevna [1]
3 years ago
8

This diagram shows part of a design made by using toothpicks to form triangles. The top level uses 3 toothpicks. The second leve

l uses 6 toothpicks. The third level uses 9 toothpicks, and so on. If you decide to continue the design so that it has 7 levels, how many toothpicks do you need altogether
Mathematics
1 answer:
Colt1911 [192]3 years ago
6 0
The answer to this problem is simple to find the answer we must see the keywords in the sentence on of is how many which can mean addition/multiplication so here the problem is increasing in a rate of 3 3x1=3
 3x2=6 3x3=9 and so on 3x7=21 your answer is 21
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Solve logarithmic equation
Maksim231197 [3]

Answer:

x=6

Step-by-step explanation:

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4 0
3 years ago
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2x+4y=6<br> 3x=12-6y<br> Solve by elimination
faltersainse [42]

Answer:

no solution

Step-by-step explanation:

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so now we have :

x + 2y = 3

x + 2y = 4

ok....I dont have to go any farther to know that this has no solution because ur equations have the same slope and different y int, this means ur lines are parallel and have no solution because they never cross each others path.

5 0
3 years ago
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Leyla drops a penny from a height of 150 m. How long will it take the penny to hit the ground? Use the formula h(t)=−4.9t^2+vt+h
torisob [31]
To determine the time it  takes for the penny to reach the ground, we use the relation of height and time given above. We do  as follows:
<span>
0 =−4.9t^2+(0)t+150
t = sqrt( 150/4.9)
t = 5.53 s

Hope this answers the question. Have a nice day.</span>
4 0
3 years ago
Read 2 more answers
1.3.IP-28
lidiya [134]

Step-by-step explanation:

Find the difference

3,621 - 1,836 = 1,785

They payed $1,785 dollars in the second installment.

6 0
3 years ago
Factor completely 3x^2 − x − 4.
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3x^2 − x − 4

factor

= (3x − 4)(x + 1)


answer

D. (3x − 4)(x + 1)

8 0
3 years ago
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