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kozerog [31]
3 years ago
12

I need the answer to number 39.

Mathematics
1 answer:
OLga [1]3 years ago
7 0
To find the number of hours you have to 9 hours and 30 minutes by three because it say how many hours did he play each day and it says three days.
So 9 hours and 30 minutes equal to 570 minutes. Divide 570 three times to get 190. Now how many hours are in 190 minutes? The answer is C. 3 hours and 10 minutes I hope this helps
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Which fraction has a value that is equal to 3/4
Katena32 [7]
3/4
3.0/4=0.7R0.2 or 0.7 + 0.2/4
0.20/4=0.05R0.00 or 0.05 + 0.00/4
now put it all together
0.7R2 = 0.7 + 0.05R0.00 = 0.75 + 0.00 = 0.75
6 0
3 years ago
What is the solution to the inequality 2n+5| > 1?
hodyreva [135]

Answer:

n < - 3 or n > - 2

Step-by-step explanation:

Inequalities of the type | x | > a , have solutions of the form

x < - a or x > a

Then

2n + 5 < - 1 or 2n + 5 > 1

Solve both inequalities

2n + 5 < - 1 ( subtract 5 from both sides )

2n < - 6 ( divide both sides by 2 )

n < - 3

OR

2n + 5 > 1 ( subtract 5 from both sides )

2n > - 4 ( divide both sides by 2 )

n > - 2

Solution is n < - 3 or n > - 2

3 0
3 years ago
Graph the equation y = x2 + 8x + 12 on the accompanying set of axes. You must
UkoKoshka [18]

Answer:

Step-by-step explanation:

Roots:  set y = x^2 + 8x + 12 = 0 and solve for x:  x + 6 = 0, so x = -6 is one root.  The other is x = -2.  The corresponding points are (-6, 0) and (-2, 0).

y-intercept:  Let x = 0.  Then y = 12.  The y-intercept is (0, 12).

Axis of symmetry:  x = -b / (2a) => x = -8/(2*1) = -4:  x = -4

Vertex y-value:  evaluate y at x = - 4:  (-4)^2 + 8(-4) + 12 = -4:    (-4, -4)

Arbitrarily chosen x value:  x = 1 => 1^2 + 8(1) + 12 = 21:     (1, 21)

The five points are:  (-6, 0) and (-2, 0), (0, 12), (-4, -4), (1, 21).  The vertex is (-4, -4).  The parabolic graph opens UP.

8 0
3 years ago
Please help asap 25 pts
Damm [24]
2y -3 >-1

2y > 2
y > 1

OR

1 > Y

Y < 1

Since it is only one, D is the correct answer
5 0
3 years ago
Read 2 more answers
What is an equation of a line that passes through the points (8 , -3) (8 , 4)
elixir [45]

Answer:

Step-by-step explanation:

(8,-3),(8,4)

since both points have the same x value, this means you have a vertical line with an undefined slope...so ur equation would be x = 8....because no matter what y is, x will always be 8

7 0
3 years ago
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