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3 years ago

Which function is a quadratic function

1 answer:

5 0

A quadratic function is one of the form f(x) = ax2 + bx + c, where a, b, and c are numbers with a not equal to zero. The graph of a quadratic function is a curve called a parabola. ... A parabola intersects its axis of symmetry at a point called the vertex of the parabola. You know that two points determine a line.

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Can anyone help me with this question please

klemol [59]

Answer:

7. ∠CBD = 100°

8. ∠CBD = ∠BCE = 100°; ∠CED = ∠BDE = 80°

Step-by-step explanation:

7. We presume the angles at A are congruent, so that each is 180°/9 = 20°.

Then the congruent base angles of isosceles triangle ABC will be ...

∠B = ∠C = (180° -20°)/2 = 80°

The angle of interest, ∠CBD is the supplement of ∠ABC, so is ...

∠CBD = 180° -80°

∠CBD = 100°

8. In the isosceles trapezoid, base angles are congruent, and angles on the same end are supplementary:

∠CBD = ∠BCE = 100°

∠CED = ∠BDE = 80°

8 0

2 years ago

Solve r=s/17−t for t

mamaluj [8]

T=-r+s/17

Explanation:

6 0

2 years ago

How do you solve -2/5x -9<9/10

Finger [1]

Answer:

x > -99/4

Step-by-step explanation:

I must assume that you meant (-2/5)x -9<9/10.

This inequality has 3 terms. The LCD is 10. Multiply each term by 10 and reduce the result:

10(-2/5)x - 10(9) < 10(9/10), or:

-4x - 90 < 9

Adding 90 to both sides results in:

-4x < 99

Here we must divide by a negative number (that is, by -4). This requires reversing the direction of the inequality sign:

x > -99/4 is the final solution.

5 0

3 years ago

You are helping to organize a soccer tournament by registering the participating teams. Each week 6 teams

AysviL [449]

Answer: What is the question?

Step-by-step explanation:

8 0

3 years ago

Is this linear or non linear?<br> x. 0,2,4,6<br> y. 2,6,18,38

quester [9]

I’m pretty sure that will be linear.

3 0

2 years ago