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Maru [420]
3 years ago
9

Please help me idk this

Mathematics
2 answers:
Gala2k [10]3 years ago
8 0

Answer:

x = 25 degrees

andrew11 [14]3 years ago
6 0

Answer:25

Step-by-step explanation: since we know that complementary angles add up to 90, we can subtract our known angle from 90 to find the value for x.

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Can someone help me with system of equations?
umka21 [38]

#1)

Answer:

x=1 and y=12

Explanation:

y=5x+7

y=2x+10

This system should use substitution because the value of y is given in terms if x.

Substitution:

5x+7=2x+10

Solve:

3x=3

x=1

Substitute x to solve for y by plugging x into one if the original equations(doesn’t matter which one is used).

y=5x+7

y=5(1)+7

y=5+7

y=12

#2)

Answer:

x=-8 and y=2

Explanation:

y=2x+18

9y=-2x+2

This system also uses substitution. The value of y us already given in terms if c in the first equations, so we will substitute in the second equation.

Substitute:

9(2x+18)=-2x+2

Solve:

18x+162=-2x+2

20x=-160

x=-8

Now that we have the value if x, plug it into one of the original equations(doesn’t matter which equation) and substitute to find y.

y=2x+18

Substitute:

y=2(-8)+18

Solve:

y=-16+18

y=2

7 0
3 years ago
Read 2 more answers
10x is greater than or equal to 120 cm^2
Agata [3.3K]

Answer:

x greater than or equal to 12cm^2

Step-by-step explanation:

8 0
2 years ago
ANSWER ASAP 23 POINTS
BARSIC [14]
He slings the stone at him
5 0
3 years ago
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The equation of the parabola whose focus is at (7 0) and directrix at y=-7 is
bija089 [108]
The equation of the parabola whose focus is at (7, 0) and directrix at y = -7 is 
(x-7)^2 = 14(y + 7/2)

Hope this helps
5 0
3 years ago
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