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4 years ago

Simplify 9 to the 2nd over 9 to the 7th.

1 answer:

7 0

Use the exponent rules
x^a/x^b =1/x^b-a

9^2/9^7 = 1 / 9^7-2 = 1/9^5
1 over 9 to the 5th = 59049
so it would be 1/59049
1 0ver 59049

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Asap rervfsdewrfgtsfdas

Sergeu [11.5K]

Step-by-step explanation:

QR = ST

⅔x = 0.4

times 3

2x = 1.2

x = 1.2 /2

x = 0.6

7 0

3 years ago

Read 2 more answers

The relationship between women’s whole-number shoe sizes and foot lengths is an arithmetic sequence, where an is the foot length

ad-work [718]

Answer:

The explicit formula for Arithmetic Sequence is $a_n=7.02+0.33n$

Step-by-step explanation:

Given: Foot length & shoe size in AP.

$a_n$ is foot length and n is shoe size.i.e., $a_{12}=11\:and\:a_7=9.33$

To find: Formula for Arithmetic sequence .i.e., $a_n$

From question,

$a_{12}-a_7=11-9.33=1.67$

Also, we know that

$a_{12}=a_7+5d\\5d=a_{12}-a_7\\5d=1.67\\d=\frac{1.67}{5}\\\\d=0.33$

Now, consider

$a_7=a_1+6d\\a_7=a+6d\\a=a_7-6d\\a=9.33-6\times0.33\\a=9.33-1.98\\a=7.35$

Thus using formula of $a_n$ we get,

$a_n=a+(n-1)d\\a_n=7.35+(n-1)\times0.33\\a_n=7.35+0.33n-0.33\\a_n=7.02+0.33n$

Therefore, The explicit formula for Arithmetic Sequence is $a_n=7.02+0.33n$

4 0

3 years ago

Read 2 more answers

The sum of 4 consecutive integers is 354

gtnhenbr [62]

Answer:

The numbers are 87, 88, 89 and 90.

Step-by-step explanation:

Let the numbers be x, x+1, x+2 and x+3.

x + x +1 + x + 2 + x + 3 = 354

4x + 6 = 354

4x = 348

x = 348 / 4

= 87.

7 0

3 years ago

How to find the properties of 6x89?

patriot [66]

6 X 89 =6 x (80 + 9) = (6 x 80)+ (6x9)=480+54=534

6 0

3 years ago

How old are you? and answewr this is that correct stop doing that

Helen [10]

Answer:

why stop this dude

Step-by-step explanation:

5 0

2 years ago