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Kipish [7]
4 years ago
9

If X equals 10 which lines are parallel

Mathematics
1 answer:
poizon [28]4 years ago
3 0

Answer:

1. B||C

2.B||D

4.C||D

Step-by-step explanation:

Substituting 10 in for x, the angle next to line b is

7(10)-5 = 70-5 = 65°.

The angle next to line c is

10(10)+15 = 100+15 = 115°.

The angle next to line d is

12(10)-5 = 120-5 = 115°.

The angle next to line e is

8(10)-25 = 80-25 = 55°.

Hope this helped you!

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Use vieta's theorem to solve the problems.
Mnenie [13.5K]

Using Vieta's Theorem, it is found that c = 72.

<h3>What is the Vieta Theorem?</h3>
  • Suppose we have a quadratic equation, in the following format:

y = ax^2 + bx + c

  • The roots are p and q.

The Theorem states that:

p + q = -\frac{b}{a}

pq = \frac{c}{a}

In this problem, the polynomial is:

x^2 - 17x + c

Hence the coefficients are a = 1, b = -17.

Since the difference of the solutions is 1, we have that:

p - q = 1

p = 1 + q

Then, from the first equation of the Theorem:

p + q = -\frac{b}{a}

1 + q + q = 17

2q = 16

q = 8

p = 1 + q = 9

Now, from the second equation:

pq = \frac{c}{a}

72 = c

c = 72

To learn more about Vieta's Theorem, you can take a look at brainly.com/question/23509978

6 0
2 years ago
I need help i am timed
Vadim26 [7]

Answer:

200 - 200

-147 - 53

90  -  143

-229 - -86

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Step-by-step explanation: im not sure on the last two but i tried?

3 0
3 years ago
The lengths of the sides of a triangle are represented by 3m, 3m and 3m.
Aleks04 [339]
Q1: The perimeter of the triangle is a + b + c and if each side is the same then it's 3a. In this situation we may write it in its simplest form as 9m. Note that 3(3m) is also correct but it's not the simplest form.

Q2: You're correct, the distributive property of 3(3m) can be written as 3 (2m + m).
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I'm having a hard time simplifying this expression: tan(sin−1 x)
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Just do it on calcutar
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{f(x)=2x+1 g(x)=x2+2x−8
n200080 [17]

The value of g(x) = 2[f(x)]² - 1 is g(x) = 8x² + 8x + 1

<h3>How to find a function?</h3>

f(x) = 2x+1

Find

g(x) = 2[f(x)]² - 1

Hence,

g(x) = 2[2x + 1]² - 1

g(x) = 2[4x² + 4x + 1] - 1

g(x) = 8x² + 8x + 2 - 1

g(x) = 8x² + 8x + 1

learn more on function here: brainly.com/question/1442153

#SPJ1

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