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3 years ago

(5x3 + 3)2 = (5x3)2 + (3)2 = 25x6 + 9 Determine if Louise’s answer is correct. Explain.

1 answer:

3 0

Louise’s answer is not correct. She is missing the term 30x3. When squaring a binomial, it is best to write the product of the binomial times itself. Then you can use the distributive property to multiply each term in the first binomial by each term in the second binomial. Louise also could have used the formula for a perfect square trinomial, which is found by squaring a binomial.

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Is y=-5/6x proportional?

lys-0071 [83]

Answer:

Step-by-step explanation:

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3 years ago

The price of a cowboy ticket costs $34 but then went down $14. what % was the price reduced?

Shkiper50 [21]

Answer:

That depends on what you're asking.

EIther 41.18 or 58.82

Step-by-step explanation:

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3 years ago

Write the rule for the nth term of each sequence.

stira [4]

Rule for sequence a is: a_n = 10-3n

Rule for sequence b is: a_n = -19+8n

Step-by-step explanation:

a.)7, 4, 1, -2, ...

First of all we have to find the common difference. Common difference is the difference between consecutive terms of an arithmetic sequence

Here,

$a_1 = 7\\a_2 = 4\\a_3 = 1\\d = a_2 - a_1 = 4-7 = -3\\d = a_3 - a_2 = 1-4 = -3$

The explicit rule for an arithmetic sequence is:

$a_n = a_1 + (n-1)d$

Putting the value of a1 and d

$a_n = 7 + (n-1)(-3)\\a_n = 7 -3n+3\\a_n = 10-3n$

b.)-11, -3, 5, 13, ...

First of all we have to find the common difference. Common difference is the difference between consecutive terms of an arithmetic sequence

Here,

$a_1 = -11\\a_2 = -3\\a_3 = 5\\d = a_2 - a_1 = -3+11 = 8\\d = a_3 - a_2 = 5+3 = 8$

The explicit rule for an arithmetic sequence is:

$a_n = a_1 + (n-1)d$

Putting the value of a1 and d

$a_n =-11 + (n-1)(8)\\a_n = -11 +8n-8\\a_n = -19+8n$

Hence,

Rule for sequence a is: a_n = 10-3n

Rule for sequence b is: a_n = -19+8n

Keywords: Arithmetic sequence, common difference

Learn more about arithmetic sequence at:

#LearnwithBrainly

8 0

3 years ago

How do I use the distance formula to determine whether two triangles are congruent

Sergio039 [100]

You find the distance of all sides to both triangle then match up the sides and see if they are similar

6 0

3 years ago

Read 2 more answers

I need help this is for tomorrow please

Reil [10]

A. this would be -1 because that is the y intercept as in where it meets the y axis.
b. the slope or rate of change would be 3 or 3 over 1. just follow the y=mx+b form. m=slope and b=yintercept or where the line meets the y axis. hope I helped

7 0

3 years ago