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choli [55]
3 years ago
14

30 POINTS!!!!1 PLEASE HELP!!!!!

Mathematics
1 answer:
Ahat [919]3 years ago
4 0

Answer:

From what I could tell, the answer is 16.

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4x + 9y = 4
saw5 [17]

Answer:

x=101/65, y=-16/65. (101/65, -16/65).

Step-by-step explanation:

4x+9y=4

9x+4y=13

----------------

9(4x+9y)=9(4)

-4(9x+4y)=-4(13)

------------------------

36x+81y=36

-36x-16y=-52

----------------------

65y=-16

y=-16/65

4x+9(-16/65)=4

4x-144/65=4

4x=4+144/65

4x=404/65

x=(404/65)/4=101/65

x=101/65, y=-16/65.

7 0
3 years ago
On what interval is the function h(f)=|x+2|-2 increasing ?
VLD [36.1K]

Answer:

The increasing interval is S=(-2,\infty)

Step-by-step explanation:

This absolute function has a vertex in x=-2. Now, from this point, the function has a positive slope (increasing), which means for values of x equals to -1,0,1,2,3,...,n.

Therefore the interval will

S=(-2,\infty)

I hope it helps you!

7 0
2 years ago
Solve for t.<br> -t = 9(t-10)<br> pls help
g100num [7]

Step-by-step explanation:

-t = 9(t-10)

-t = 9t - 90

90 = 9t + t

90 = 10t

90 ÷ 10 = t

9 = t

6 0
3 years ago
A giraffe can run about 14 meters per second. Find it's speed in miles per hour
Inga [223]
(14 meter/sec) x (1 mile/1609.344 meter) x (3,600 sec/hour) =

                         (14 x 3600) / (1609.344) = <em>31.32 mile/hour  </em>(rounded)
4 0
3 years ago
Simplify 27^2.<br><br> please (thxx)
adoni [48]

Answer:

729

Step-by-step explanation:

Raise 27 to the power of 2.

729

4 0
3 years ago
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