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marin [14]
3 years ago
9

If

Mathematics
1 answer:
Setler79 [48]3 years ago
6 0

Answer:

-8

Step-by-step explanation:

((x * -5) / -8) = 5

multiply both sides by -8

x * -5 = 40

divide both sides by -5

x = -8

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Consider the parabola represented by the equation -2y^2=4x
stepan [7]
Part 1: The general form for this matches y^2 = -4cx, which implies that this opens to the left. (Imagine assigning any value of y, whether positive or negative, which would result in a positive left-hand value. Then to match this sign, the value of x must be negative so that the right-hand side becomes positive as well.)

Part 2: The distance from the vertex to the directrix is given by c. This equation has its vertex at the origin (0, 0). If it opens to the left, the directrix is a vertical line to the right of the origin. This equation is y^2 = -4(1/2)x, so c = 1/2, and the directrix has the equation x = 1/2.

Part 3: The focus is inside the parabola, but it is the same distance from the vertex as the directrix. This distance is 1/2 units, and it will be to the left of the vertex. So the focus is at (-1/2, 0).
5 0
3 years ago
It's the same possible answers for both questions​
Anettt [7]

Answer:

q10, vertically opp angles

q11, corresponding angles

Step-by-step explanation:

Topic: angle properties

If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!

5 0
3 years ago
Hello, happy Friday, I am just here with some geometry questions.
stealth61 [152]

Answer:

m<D = 105

Step-by-step explanation:

So, Triangle STU and DEF are similar triangles, because their corresponding side lengths have the same ratio.

For example FD can be multiplied by 2.5 to get SU, and EF can be multiplied by 2.5 to get TU, and ED can me multiplied by 2.5 to get 15.

Anyways, since the two triangles are similar, they have the same angle measures, meaning that angle D can be found by subtracting 46 and 25 from 180 degrees to find the missing angle, which is 105 degrees. I hope that helps.

7 0
3 years ago
Read 2 more answers
HELPPPPPPPPPPPPPP PLSSSSSS
pshichka [43]

Answer:

x=5\sqrt{3}

Step-by-step explanation:

Evaluate the Pythagorean Theorem for the triangle.

a² + b² = c²

5² + x² = 10²

25 + x² = 100

Subtract 25 from both sides.

x² = 75

Square root.

x = sqrt(75)

Expand the radical.

x = 5*sqrt(3)

8 0
3 years ago
Answer PLZZ 50 pointsssss
Yanka [14]
Answers
1.) would be A.) y = 2x + 3
2.) would be graph B) the graph looks a little blurry so it could also be C) just a heads up but I’m almost positive it’s B

6 0
3 years ago
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