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77julia77 [94]
3 years ago
9

I WILL AWARD BRAINLIEST!!!!!!!!!!! PLEASE HELP!!!!!!!!! SOLVE A, B, C, AND D!!!!

Mathematics
1 answer:
marta [7]3 years ago
8 0

Answer:

im not sure if this is correct or not because i didnt check my work all the way or use a calculator and if im wrong im extremely sorry !!. . .

Step-by-step explanation:

a) one unit up::: y = |2x|  

b) one unit down:::y = |2x|-2  

c) one unit to the left:: y = |2(x+1)|-1

d) one unit to the right::: y = |2(x-1)|-1

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Write an<br> explicit formula for An, the nth term of the sequence 7, -42, 252, ....
erik [133]

Answer:

A_n = 7(-6)^{n-1}

Step-by-step explanation:

<u>Key skills needed: Explicit formula, Geometric sequence</u>

1) This is a geometric sequence, meaning a constant (like 6 or 3.5) is being multiplied to every term. First we need to find the constant.

This can be done by doing -42 ÷ 7   or   252 ÷ -42

-42 ÷ 7 equals -6.

252 ÷ -42 also equals -6.

2) This means that constant is -6.

3) The general form for an explicit formula of a geometric sequence is:

a_n = a_1(r)^{n-1}

--> r means the constant (or common ratio) that is being multiplied.

--> a_1 means the first term

--> a_n means the "nth" numbered term (so a_3 is the 3rd term, a_{10} is the 10th term and so on).

--> n-1 is just the "n" in a_n minus 1.

4) We can use this formula to create an explicit formula for the geometric sequence in the problem.

--> r = -6 (Since we got -6 as the constant/common ratio).

--> a_1  = 7 (Since 7 is the 1st term)

This means that our formula would be --> A_n = 7(-6)^{n-1}

<em>Hope you understood and have a nice day!! :D</em>

8 0
3 years ago
Help ASAP! Correct answer will be marked BRAINLIEST!!!
Nataly_w [17]

Answer:

not telling u the answer but first multiply 2 x 2 1/2 (4 1/2) then add that to 6 2/5

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
The ratio of jumps to falls for ice skater Rhonda is 4 falls to every 15 jumps. At this rate, how many times will she not fall i
Inessa05 [86]

<u>Answer:</u>

Rhonda will not fall 264 times in 360 jumps.

<u>Solution:</u>

Given, The ratio of jumps to falls for ice skater Rhonda is 4 falls to every 15 jumps.  

We have to find At this rate, how many times will she not fall in 360 jumps.

Now,  

For 15 jumps → 4 falls

For 360 jumps → n falls

Now apply Chris cross method,

15 \times n=360 \times 4 \rightarrow n=\frac{360 \times 4}{15}=24 \times 4=96

So, she falls 96 times in 360 jumps.

Then, number of times she will not fall = 360 jumps – 96 falls = 264 times.

Hence, Rhonda will not fall 264 times in 360 jumps.

8 0
3 years ago
Stan, a local delivery driver is paid $3.50 per mile driven plus a daily amount of $75. On Monday he is assigned a route that is
Maurinko [17]
3.50m+75 for the 30 miles, he is being paid 105 plus the daily amount of 75 which equals to 180$.
4 0
3 years ago
please help solve this problem the - is a negative sign. (2b+-7)+5(b+-3)
enyata [817]

Answer:


Step-by-step explanation:

(2b+-7)+5(b+-3)

Multiply 5 throughout the second parentheses

(2b-7)+(5b-15)

Add 2b and 5b

7b-7-15

Subtract -7 and -15

7b-22

3 0
3 years ago
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