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dangina [55]
3 years ago
12

Don’t worry about number 4 just tell me the answer to number two

Mathematics
2 answers:
tangare [24]3 years ago
8 0

Answer:

B

Step-by-step explanation:

First, you must combine like terms.

5a - a - a would be 3a.

-6 + 4 would be -2.

3a-2

mario62 [17]3 years ago
5 0

Answer:

The answer would be B. -a+4+5a-a-6.

You would need to put like terms together. 4 and -6 is -2. -a, 5a, and -a is 3a.

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3 years ago
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Find the sum of the geometric sequence -3,15,-75,375,... when there are 7 terms and select the correct answer below.
vivado [14]

Answer:

-39,063

Step-by-step explanation:

In this geometric, sequence, you are multiplying by -5. So, we can continue the sequence by mulitplying 375(your last value) by -5 and so on, until we have 7 total terms.

Now we add the terms together:

-3+15+-75+375+-1875+9375+-46875

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Hope this helps :)

8 0
3 years ago
Solve the equation without using the Distributive Property.
PIT_PIT [208]
Distribute:
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6 0
3 years ago
Find the critical value zα/2 that corresponds to a 98% confidence level.
SVETLANKA909090 [29]

A critical value is the point on the scale of the test statistic (z test in this case) outside which we reject the null hypothesis, and is taken from the level of significance of the test. The critical values can be obtained from the standard distribution tables for z and for this case, it is equivalent to:

critical value zα/2 at 98% confidence level = 2.326

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4 0
3 years ago
How could you use coordinate geometry to prove that segment BC is congruent to segment AD?
liberstina [14]

Answer:

  Prove the lengths are the same

Step-by-step explanation:

When we say segments are congruent, we mean their lengths are the same.

__

Let's see if they are congruent.

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  BC = √((6-0)² +(6-6)²) = 6

AD ≅ BC . . . . their lengths are the same

8 0
3 years ago
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