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Neko [114]
4 years ago
15

-k^2-(3k-5n) +4n;k=-1 and n=-2

Mathematics
2 answers:
Katyanochek1 [597]4 years ago
4 0
-(-1)^2-((3(-1)-5(-2))+4(-2)
-(-1)^2-((7)+4(-2)
-1-(1)+(-8)
=-10
Dafna11 [192]4 years ago
3 0
-k^2 - (3k - 5n) + 4n....when k = -1 and n = -2

-1^2 - (3(-1) - 5(-2) + 4(-2)
1 - (-3 + 10) + 4(-2)
1 - 7 - 8
-14 <=
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Helpppppppppppppp I’ll mark u
Nataly_w [17]
-35 is the answer hope this helps
4 0
3 years ago
3x+2y=4<br> 8x-3y=-6 solving systems of equations by substitution
Over [174]

Answer:

x=0, y=2. (0, 2).

Step-by-step explanation:

3x+2y=4

8x-3y=-6

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

3(3x+2y)=3(4)

2(8x-3y)=2(-6)

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

9x+6y=12

16x-6y=-12

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

25x=0

x=0/25

x=0

3(0)+2y=4

0+2y=4

2y=4-0

2y=4

y=4/2

y=2

6 0
3 years ago
In order to qualify for a role in a play, an actor must be taller than 64 inches but shorter than 68 inches. The inequality 64 &
netineya [11]

Answer: x > 64 and x < 68 is another way of rewriting inequality.

Step-by-step explanation:

To qualify for a role in a play, an actor must be taller than 64 inches but shorter than 68 inches.

⇒The inequality 64 < x < 68, where x represents height,gives the range of height.

⇒In other words range of height can be x > 64 and x < 68 , such that both conditions are applied to single actor.

[with the use of or it will appear to give priority by actor to follow any 1 conditon]

8 0
2 years ago
If the radius of a right circular cylinder is doubled and height becomes 1/4 of the original height, then find the ratio of the
Oduvanchick [21]

<u>Given</u><u> </u><u>info:</u><u>-</u>If the radius of a right circular cylinder is doubled and height becomes 1/4 of the original height.

Find the ratio of the Curved Surface Areas of the new cylinder to that of the original cylinder ?

<u>Explanation</u><u>:</u><u>-</u>

Let the radius of the right circular cylinder be r units

Let the radius of the right circular cylinder be h units

Curved Surface Area of the original right circular cylinder = 2πrh sq.units ----(i)

If the radius of the right circular cylinder is doubled then the radius of the new cylinder = 2r units

The height of the new right circular cylinder

= (1/4)×h units

⇛ h/4 units

Curved Surface Area of the new cylinder

= 2π(2r)(h/4) sq.units

⇛ 4πrh/4 sq.units

⇛ πrh sq.units --------(ii)

The ratio of the Curved Surface Areas of the new cylinder to that of the original cylinder

⇛ πrh : 2πrh

⇛ πrh / 2πrh

⇛ 1/2

⇛ 1:2

Therefore the ratio = 1:2

The ratio of the Curved Surface Areas of the new cylinder to that of the original cylinder is 1:2

6 0
3 years ago
What is the slope of the line represented by 5x- 12y = 24
madam [21]

Answer: Slope= 0.833/2.000= 0.417

​

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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