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svetoff [14.1K]
3 years ago
11

Help ???

Mathematics
1 answer:
tresset_1 [31]3 years ago
7 0
Answer: Choice B) The graph opens down

The negative 'a' value means the parabola opens downward. One way to remember it is that the positive 'a' value means "happy face" or "smile", and a negative 'a' value means "frowny face".

See the image attachment and note the color coding of the graphs.

You might be interested in
Calculate the slope of a line with a run of 3 and a rise of 9.
Mrrafil [7]

Answer:

<u>Slope = 3</u>

Step-by-step explanation:

Slope is calculated as the "Rise/Run" of a straight line.  The Rise is the change in the value of y, or the amount y changes per change in x.  Run is the change in the x value.  A line with a run of 3 and a rise of 9 is calculated as:

Rise/Run = 9/3 or 3

This means that the value of y will increase by 3 for every increase of 1 in the value of 3.

Slope in "m" in the slope-intercept form of a straight line equation:  y = mx + b

The line y = 3x + 2 tells us the it has a slope of 3 and intercepts the y axis at x = 2.

Example points (y = 3x + 2)

(0,2)

(1,5)

(4,14)

Note that y changes by 12 when x changes by 4.  Rise/Run = 12/4 or 3.

4 0
2 years ago
What’s the difference???<br> Help please
RideAnS [48]

Answer: D

Step-by-step explanation:

An equation would look like this:

x+1=3

An expression would look like this:

x+1

As you can see, an expression has no equal sign. Conversely, an equation does. That is the primary difference between a(n) (algebraic) expression and equation.

7 0
3 years ago
Read 2 more answers
Help me please. The answer is 3350 but i need to do step by step. But i dont know how<br>​
Radda [10]

Answer:

3350

Step-by-step explanation:

100 + 8 = 108%

108% is 3618

100% is x

108x = 3618 * 100

108x = 361800

x = 361800/108

= 3350

Hence, the original salary is HRK 3350

<em>Feel free to mark this as brainliest! :D</em>

5 0
3 years ago
find the volume of a right circular cone that has a height of 2.1m and a base with a diameter of 13.7m. round your answer to the
elena-14-01-66 [18.8K]

Answer:

V = 103.2 m³

Step-by-step explanation:

6 0
4 years ago
Willa says the slope of the graph is - 3. What error did
Yuri [45]

Answer:B

Step-by-step explanation: “she counted the squares instead of using the scale” by looking at the graph the first coordinates are (4,24) and instead of doing that Willa counted the squares.

5 0
4 years ago
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