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Vanyuwa [196]
2 years ago
6

PLEASE HELP ASAP I DONT GET SOMEONE PLEASE EXPLAIN TOO!!!

Mathematics
2 answers:
Jobisdone [24]2 years ago
6 0
Answer :
Line 1 : Postive
Line 2 : Undefined
Line 3 : Zero
Line 4 : Negative

Explanation:

Look at the line. Starting from the left side, is it going up or down? Up means it is positive. Down means it is negative. The other two lines you just have to remember which one is undefined and which one is Zero.
Tomtit [17]2 years ago
5 0

Answer:

see explanation

Step-by-step explanation:

A line sloping upwards from left to right has a positive slope.

Line 1 is in this category.

A line sloping downwards from left to right has a negative slope.

Line 4 is in this category.

The slope of a vertical line, parallel to the y- axis is undefined.

Line 2 is in this category.

The slope of a horizontal line, parallel to the x- axis is zero.

Line 3 is in this category.

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What is the the area of a sector of a circle with a radius of 9 centimeters and formed by a central angle that measures 120
dem82 [27]

Answer:

27π cm²

Step-by-step explanation:

step 1

Find the area of the complete circle

The area of the circle is equal to

A=πr²

we have

r=9 cm

substitute

A=π(9)²=81π cm²

step 2

Remember that the area of complete circle subtends a central angle of 360°

so

using proportion

Find the area of a sector formed by a central angle that measures 120°

81π/360°=x/120°

x=120°*81π/360°

x=27π cm²

5 0
2 years ago
The graph below does not represent a function. Explain why.
Simora [160]

Notice how points T and Z are vertically aligned, or vertically lined up. This is where the graph fails the vertical line test.

The input x = 2 leads to the outputs y = 3 and y = 5 (which are the y coordinates of points Z and T in that order).

A function is only possible when any given input leads to <u>exactly one</u> output only. It would be like saying "the conversion function from Celsius to Fahrenheit has 0 degrees C convert to both 32 degrees F and 50 degrees F at the same time". But such a statement makes no sense and it's not useful. So this is one example of why having one output makes sense for a function.

In short, we need one output for any given input. But the input x = 2 leads to more than one output. That's why we don't have a function.

6 0
3 years ago
Solve for x if 2(5x+2)2=48
Kitty [74]

Answer:

x =(-4-√96)/10=(-2-2√ 6 )/5= -1.380

x =(-4+√96)/10=(-2+2√ 6 )/5= 0.580

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
2x+7=20 can someone please help with this
salantis [7]

Answer:

6.5

Step-by-step explanation:

first subtract 7 from both sides

2x=13

next divide both sides by 2

x=6.5

3 0
3 years ago
Read 2 more answers
Use set of notation to write the domain and range of the function y=-3x(x+1)^2+3 shown in graph
anygoal [31]

The domain of a function is the set of values of x in which the function can be calculated.

The range of a function is the associated values of the function respect to the domain.

You have the following function:

y=-3(x+1)^2+3

In order to determine the domain and range of the previous function, you consider that the given function is available for any value of x. Then, you have:

dom y: -∞ ≤ x ≤ ∞ : (-∞,∞)

The range of the function can be determine by noticing, on the graph, that the maximum value of the function is y=3 and also you can notice that there is no a limit for negatives values of the function. Then, you have:

ran y: -∞ ≤ y ≤ 3 : (-∞,3]

7 0
10 months ago
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