Which graph represents the sequence: 80, -40, 20

1 answer:

8 0

<span> 80/-40=-40/20=-2,
the sequence: 80, -40, 20 is a geometric sequence
its general formula is Vn+1 = q Vn, where q= -2,
if we put </span>Vn+1 = f(x)
<span> Vn = x

so we have f(x)= -2x so the graph that represents the sequence is graph of linear equation

</span>

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A bag contains 120 marbles. Some are red and the rest are black.There are 19 red marbles for every black marble.How many red mar

Charra [1.4K]

Answer:

there are 114

Step-by-step explanation:

Ratio of red marbles to black marbles is 19:1. (Data from 3rd sentence)

19+1= 20

20 units= 120 (Data from 1st sentence)

1 unit= 120/20= 6

19 units= 120-6= 114 (Values solved in working above)

Ans: There are 114 red marbles.

6 0

3 years ago

Read 2 more answers

Please look at the image

Ksivusya [100]

Answer:

150°

Step-by-step explanation:

take 180°, and subtract it from 30°

180°-30°= 150°

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3 years ago

In the diagram below, ΔPQR ≅ ΔSTR. Complete the statement RQ⎯⎯⎯⎯⎯⎯⎯⎯≅ R Q ¯ ≅ ___

pantera1 [17]

Based on the CPCTC theorem, the complete statement is: RQ ≅ RT.

<h3>What is the CPCTC Theorem?</h3>

According to the CPCTC theorem, if two triangles are said to be congruent, then all the corresponding parts of both triangles are congruent.

Given that ΔPQR ≅ ΔSTR, RQ corresponds to RT. Therefore, both sides are congruent to each other.

Thus, the complete statement is: RQ ≅ RT.

Learn more about the CPCTC theorem on:

brainly.com/question/14706064

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