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2 years ago

12

In the figure below, points A, B, and C are on a straight line. What is the measure of angle DBE

2 answers:

larisa86 [58]2 years ago

6 0

Answer:

<DBE = 120

Step-by-step explanation:

A straight angle (ABC) has 180 degrees.

20 + 40 + x = 180 Combine the left

60 + x = 180 Subtract 60 from both sides.

60-60 + x = 180 - 60

x = 120

I

Setler79 [48]2 years ago

4 0

Answer:

The answer is J. 120

Step-by-step explanation:

hope it helps

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The first three steps of completing the square to solve the quadratic equation x² + 4x - 6 = 0, are

slavikrds [6]

Answer:

The next 3 steps are

Step 4: $(x+2)=\pm \sqrt{10}$

Step 5: $x=-2\pm \sqrt{10}$

Step 6: $x=-2+\sqrt{10}\ or\x=-2-\sqrt{10}$

Step-by-step explanation:

Given:

Quadratic Equation is

x² + 4x - 6 = 0

To Find:

x = ?

Solution:

Step 1: x2 + 4x = 6

Step 2: x2 + 4x + 4 = 6 + 4

Step 3: (x + 2)2 = 10

Step 4: $(x+2)=\pm \sqrt{10}$

Step 5: $x=-2\pm \sqrt{10}$

Step 6: $x=-2+\sqrt{10}\ or\x=-2-\sqrt{10}$

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3 years ago

Joesl's father is 45. He is 15 years older than twice joe's age. How old Is joe?

tresset_1 [31]

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3 years ago

(x2−1)(x+1)≥0. pls help me

docker41 [41]

Step-by-step explanation:

(x²-1)(x+1)≥0

As it has two multiples,

Therefore,

Either,

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Or,

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