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barxatty [35]
3 years ago
14

The a value of a function in the form f(x) = ax2 + bx + c is negative. Which statement must be true?

Mathematics
2 answers:
Savatey [412]3 years ago
11 0
The correct answer for the question that is being presented above is this one: "The axis of symmetry is to the left of zero." The a value of a function in the form f(x) = ax2 + bx + c is negative. The statement must be true is this The axis of symmetry is to the left of zero.<span>
</span>
Finger [1]3 years ago
8 0
For this case we have a standard quadratic equation of the form:
 f (x) = ax ^ 2 + bx + c&#10;
 As the function is negative then the following is true:
 a \ \textless \ 1&#10;
 Therefore, when the leading coefficient is less than one then:
 1) The parable opens down.
 2) The cutting points with the x axis can be positive or negative
 3) The cutoff point with the y axis can be positive or negative
 4) The axis of symmetry can be to the right or to the left of zero.
 5) The vertex of the parabola is a maximum and this is because the second derivative is negative.

 Answer:
 
The vertex is a maximum.
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6a3-5b2+2c2-3a2bc if a=5 b=2c=-1
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kotykmax [81]
You can find the perimeter by just counting the distance of every line segment all around the shape since they have vertical and horizontal slopes.
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2 years ago
Somebody please help me with my geometry.
eduard

Answer:

In order to read the degrees of an angle with a protractor, you must first determine if the angle is acute or obtuse. If it is acute, you use the measurement of the smaller number on the protractor. If it is obtuse, you use the larger measurement on the protractor.

For example, the measurement of the angle in question 1 seems to be about 74 degrees.

4 0
3 years ago
Q6: Find the first 3 terms of the sequence: a1 = 12, an = 3an-1 – 21<br> ,n&gt;2
trapecia [35]

Answer:

See below

Step-by-step explanation:

1. 12

2. 15   [3*12-21 = 15]

3. 24  [3*15-21 = 24]

4. 51   [3*24 - 21 = 51]

6 0
2 years ago
Need help simple explanation if possible
photoshop1234 [79]

Answer:

m < A = 60º

m < B = 30º

Step-by-step explanation:

The given sides on this triangle are: 6, 6\sqrt{3}, and 12

Any triangle with the angles of 30º - 60º - 90º always has side lengths in this proportion:

x, x\sqrt{3}, 2x

We can line this up with the given sides. If x is 6, then 2x would be 12.

x : x\sqrt{3} : 2x = 6 : 6\sqrt{3} : 12

Angle B is across from 6, the shortest side. That also means that it corresponds to x, or the smallest angle in the proportion, 30º.

m < B = 30º

Solving for < A:

Method 1) Sum of Angles in a Triangle

Since we already know that one angle is right and therefore 90º and m < B is 30º, we can subtract these from the total sum of angle measures in a triangle to get the last angle, < A.

180º - 90º - 30º = 60º

m < A = 60º

Method 2) Using the second part of the proportion

Since m < A is across from the second largest side, we know that it is equal to x\sqrt{3} (6\sqrt{3} in this question) or 60º in the angle proportion.

This means that m < A = 60º

Let me know if you have any questions!

4 0
2 years ago
Read 2 more answers
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