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3 years ago

Find the equation of the line that is parallel to the line x+3y=-15 that passes through the origin

1 answer:

5 0

You would subtract x from each side. It would then be 3y=-x-15. Then you would divide all of the equation by 3. Your final answer would be y=-3x-5.

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Thanks this answer really helped I got %100 on my test

Rzqust [24]

I don’t understand if this is a math problem or a statement.

3 0

3 years ago

Read 2 more answers

Find an explicit rule for the nth term of the sequence.The second and fifth terms of a geometric sequence are 18 and 144, respec

vova2212 [387]

Given:

second term = 18

fifth term = 144

The nth term of a geometric sequence is:

$\begin{gathered} a_n\text{ = ar}^{n-1} \\ Where\text{ a is the first term} \\ r\text{ is the common ratio} \end{gathered}$

Hence, we have:

$\begin{gathered} \text{ar}^{2-1}\text{ = 18} \\ ar\text{ = 18} \\ \\ ar^{5-1}=\text{ 144} \\ ar^4\text{ =144} \end{gathered}$

Divide the expression for the fifth term by the expression for the second term:

$\begin{gathered} \frac{ar^4}{ar}\text{ = }\frac{144}{18} \\ r^3\text{ = }\frac{144}{18} \\ r\text{ = 2} \end{gathered}$

Substituting the value of r into any of the expression:

$\begin{gathered} ar\text{ = 18} \\ a\text{ }\times\text{ 2 = 18} \\ Divide\text{ both sides by 2} \\ \frac{2a}{2}\text{ =}\frac{18}{2} \\ a\text{ = 9} \end{gathered}$

Hence, the explicit rule for the sequence is:

$a_n\text{ = 9\lparen2\rparen}^{n-1}$

5 0

1 year ago

Pls help me with this — show work pls

lianna [129]

Answer:

Step-by-step explanation:

7 0

3 years ago

A company charges $7 for a T-shirt and ships any order for $22. A school principal ordered a number of T-shirts for the school s

Harlamova29_29 [7]

Answer: The awnser would be D

5 0

3 years ago

Write the ratio of height of the building to the number of floors. Then, find the unit rate, and explain what it means in this

kicyunya [14]

Answer:

144:9

16 ft high

Step-by-step explanation:

Easy...could also be written as 144/9 or 144 to 9

Divide

Same thing

Hope this helps. Have a nice day

4 0

2 years ago

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