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Fiesta28 [93]
3 years ago
8

Find the simplified product: 2/5x^3(-3/10^2)

Mathematics
2 answers:
serious [3.7K]3 years ago
8 0

Answer:

−

-3^3/3250

Step-by-step explanation:

Jlenok [28]3 years ago
6 0

Answer:

B

Step-by-step explanation:

correct on edge

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Mark runs 1 mile in 6 minutes. How far will he run after 1 hour
Kaylis [27]

Answer:

10 Miles

Step-by-step explanation: The ratio for the problem is 1:6, multiply the 6 by 10 to get an hour and in a ratio you must multiply the number on booth sides by the same thing, the 1=miles and the 6=minutes

5 0
3 years ago
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mr george has a bank balance of 42 dollar at the start of the mouth.after he depostite 6 dollar the new balance is
Lubov Fominskaja [6]

Answer:

48 dollars.

Step-by-step explanation:

If Mr. George starts with 42, and adds 6, his new balance should equal 48 because you add the two numbers.

7 0
3 years ago
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Simplify. (-2)^-3<br><br> PLEASE HELP
nika2105 [10]
You have a negative exponent so you have to bring the -2 down : 1/-2^3. Then you multiply the -2*-2*-2 which is -8 so you get 1/-8 or -1/8. It means the same thing.
4 0
3 years ago
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Write the equation of a parabola whose focus is at (-7, 3) and whose directrix is the line x = -3.
Sav [38]

Check the picture below.

now, let's keep in mind that, the vertex is half-way between the focus point and the directrix, it's a "p" distance from each other.

since this horizontal parabola is opening to the left-hand-side, "p" is negative, notice in the picture, "p" is 2 units, and since it's negative, p = -2.

its vertex is half-way between those two guys, so that puts the vertex at (-5, 3)

\bf \textit{parabola vertex form with focus point distance} \\\\ \begin{array}{llll} 4p(x- h)=(y- k)^2 \\\\ 4p(y- k)=(x- h)^2 \end{array} \qquad \begin{array}{llll} vertex\ ( h, k)\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix} \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} h=-5\\ k=7\\ p=-2 \end{cases}\implies 4(-2)[x-(-5)]=[y-7]^2 \\\\\\ -8(x+5)=(y-7)^2\implies x+5=\cfrac{(y-7)^2}{-8}\implies \boxed{x=-\cfrac{1}{8}(y-7)^2-5}

7 0
4 years ago
If you budgeted 12 % of your monthly income for groceries how much can you spend if you earn $950 bi weekly
dezoksy [38]

Answer:

If I budget 12% of my monthly income for grocerises and I earn $950 bi-weekly.

Now, the term 'Biweekly' has an ambiguity. Given that in some countries like the UK, Ireland and Australia it means 'Every two weeks' but in other countries it means 'Twice every week'. In this case, we're going to solve both cases:

  • Case #1: Biweekly means every two weeks.

In this case, I would earn $1900 a month. Now, 12% percent of my monthly income is: 0.12 × $1900 = $200.

Therefore, I would spend $200 a month in groceries.

  • Case #2: Biweekly means twice a week.

In this case, I would earn $1900 a week or $7600 a month . Now, 12% percent of my monthly income is: 0.12 × $7600 = $912.

Therefore, I would spend $912 a month in groceries.

Probably, the exercise refers to case #1. But just in case, I considered both cases.

4 0
3 years ago
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