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3 years ago

Which choice is equivalent to the expression below ? 3^7.869

Mathematics

2 answers:

ololo11 [35]3 years ago

8 0

Answer:

3^7 x 3^8/10 x 3^6/100 x 3^9/1000

Step-by-step explanation:

APEX

inna [77]3 years ago

6 0

The second one:
3^7 x 3^(86/10) x 3^(9/1000)
That is because when you multiply powers with the same base ( in this case they are all 3), you just leave the base as it is and add the exponents
so it is basically 3^(7 + 86/100 + 9/1000) which is 3^7.869

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Graph the equation. (x + 3)2 + (y + 2)2 = 16

Sati [7]

okay well first you should put it in slope-intercept form aka y = mx + b

but you have simplify everything first

2(x + 3) + 2(y + 2) = 16

2x + 3 + 2y + 4 = 16

2x + 2y + 7 = 16

-7 -7

2x + 2y = 9

-2x -2x

2y = -2x + 9

/2 /2

y = -x + 4.5

so now in a graph it should look like this:

3 0

2 years ago

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kari74 [83]

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4 0

3 years ago

This is geometry. idk how to do it

umka2103 [35]

Answer:

Down below

Step-by-step explanation:

Hope this helps!

8 0

3 years ago

avanturin [10]

Answer:

A.) x / 3 = 12 ----> x = 12(3) ----><em> </em><em>x = 36</em>

B.) 2x + 3 = 20 ----> 2x = 17 ----> x = 17/2

C.) 4/3x = 10/3 ----> x = 10/3 x 3/4 ----> x = 30/12 = 5/2

D.) -4x = -24 ----> x = -24/-4 ----> x = 6

E.) 2(x-4) = 10 ----> 2x - 8 = 10 ----> 2x = 18 ----> x = 9

F.) -0.5x + 1.1 = -2.9 ----> -0.5x = -4 ---> x = -4 / -0.5 ----> x = 8

4 0

2 years ago

A sociologist recently conducted a survey of senior citizens who have net worths too high to qualify for Medicaid but have no pr

hjlf

Answer:

a) $s= 9.74$

D. 9.74

b) $Median= 74$

B. 74

Step-by-step explanation:

Part a

We have the following dataset given:

69 74 75 62 70 93 64 69 61 88 67 77 87 90 66 91 77 63 82 82 71 74 76 65 83

We can begin calculating the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = 75.04$

Now we can calculate the sample deviation with the following formula:

$s =\sqrt{\frac{\sum_{i=1}^n (X_i-\bar X)^2}{n-1}}$

And after replace we got:

$s= 9.74$

Part b

For this case we need to sort the value on increasing way:

[1] 61 62 63 64 65 66 67 69 69 70 71 74 74 75 76 77 77 82 82 83 87 88 90 91 93

And the median would be the value in the position 13 and we got:

$Median= 74$

6 0

2 years ago