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ASHA 777 [7]
3 years ago
7

Roberto has a certain number of songs on his MP3 player.

Mathematics
2 answers:
mr_godi [17]3 years ago
5 0

a

Step-by-step explanation:

gregori [183]3 years ago
4 0

Answer:

D

Step-by-step explanation:

I’ve done this math I know I am right!

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Line A has a slope of -4/3. Line B is perpendicular to Line A. What is the slope of Line B?
blsea [12.9K]

Answer:

The answer is 3/4

Step-by-step explanation:

If two lines in perpendicular, then the slope has a relation as slope1 * slope2 = -1. Then if line 1 has slope -4/3 then -4/3 * x = -1, then x = 3/4 which is the slope for the second line.

3 0
2 years ago
Nathaniel and meteorologists keep track of the amount of rain each year relative to the amount of rain in 2000 two years of data
dlinn [17]

Answer:

None is shown luv.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
In 1/8 of an hour, Ms. Wolf can grade 1/3 of a stack of papers. How many hours will it take her to grade 2 stacks?
lisabon 2012 [21]

It would take her 45 mins to grade 2 stacks or 3/4 of an hour.

3 0
3 years ago
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Find the area of the shaded region. Round to the nearest tenth.
sukhopar [10]

Answer:

Step-by-step explanation:

r = 8.35 ft

area of circle = πr² = 69.7225π ft²

θ = 5π/9 radians

area of unshaded segment = r²(θ-sinθ)/2 ≅ 26.51 ft²

shaded region = 69.7225π - 26.51 ≅ 192.53 ft²

7 0
3 years ago
Answer in factored form x^2+11x+7
KATRIN_1 [288]
X² <span>+ 11x + 7

because 7 is a prime number, this doesn't factor prettily. you'll want to use the quadratic formula; if you aren't familiar with it, i'd either research it or look it up in your textbook, because it's clunky and not easily understood in this format:

(-b </span>± √((b)² - 4ac))/(2a)

in your equation x² + 11x + 7 ... a = 1, b = 11, and c = 7. what you do is you take the coefficients of every term, then plug it into your equation:
(-11 ± √((11)² - 4(1)(7))/(2(1))

not pretty, i know. but, regardless, you can simplify it:
(-11 ± √((11)² - 4(1)(7))/(2(1))
(-11 ± √(121 - 28))/2
(-11 ± √93)/2

and you can't simplify it further. -11 isn't divisible by 2, and 93 doesn't have a perfect square that you can take out from beneath the radical. the ± plus/minus symbol indicates that you have 2 answers, so you can write them out separately:

(x - (-11 - √93)/2) and (x + (-11 - √93)/2)

they look confusing, but those are your two factors. they can be simplified just slightly by changing the signs in the middle due to the -11:

(x + (11 + √93)/2) (x - (11 - √93)/2)

and how these would read, just in case the formatting is too confusing for you: x plus the fraction 11 + root 93 divided by 2. the 11s and root 93s are your numerator, 2s are your denominator.
7 0
3 years ago
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