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djverab [1.8K]
3 years ago
11

The graph of the function f(x) = –(x + 6)(x + 2) is shown below. On a coordinate plane, a parabola opens down. It goes through (

negative 6, 0), has a vertex at (negative 4, 4), and goes through (negative 2, 0). Which statement about the function is true? The function is increasing for all real values of x where x –2. The function is decreasing for all real values of x where x < –4.
Mathematics
2 answers:
Dmitriy789 [7]3 years ago
7 0

Answer:

The function is increasing for all real values of x where x is -2

Step-by-step explanation:

You can put your work in a graphing calculator

seropon [69]3 years ago
6 0

Answer:

see below

Step-by-step explanation:

f(x) = –(x + 6)(x + 2)

The function is increasing until it reaches the vertex, so it will increase until x=-4.  The function will decrease after the vertex, so after x = -4

increasing: -∞ < x < -4

decreasing : -4 < x < ∞

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A spere has a diameter of 24 units what is the volume in cubic units
Lera25 [3.4K]

Answer: 7238.23

Step-by-step explanation:

volume of a sphere is (4/3)(pie)(r^3)

so if the diameter is 24 than the radius is 12 so u would substitute that into the formula and you should get 7238.23

8 0
3 years ago
17. When a single set of values is randomly divided into two equal groups, explain how the means of these two groups may be very
joja [24]

If you take 2 groups of equal cardinality, it could happen that, for example, many of the higher values go to the first group and therefore, many of the low values go to the second group, making their respective means quite different and different from the original sample mean. This could even go worse due to the possible existence of outliers, that is, values that are far different than the sample mean. An outlier tend to disrup the mean of a sample, but for smaller samples the result is much dramatic.

For example, let X be {1,2,3,4,5,6,7,8,9,100}

The elements of X sum 145, hence the mean of X is 14,5. Let divide X in two groups

Y = {1,2,3,5,9}

Z = {4,6,7,8,100}

The elements of Y sum 20, so its mean is 4

The elements of Z sum 125, so its mean is 25

Both means are quite different from each other and quite different from the mean of X. Note that if we take the mean of the means the result is 4+25/2 = 14,5 which is equal to the mean of X.

7 0
3 years ago
Please help need it due now!!!
ahrayia [7]

Answer:

1) 0.9, 0.99, 0.09, 0.0009

2) 4(2x²+9x)

3) 110

4) $9.50 per pizza

5) 23

4 0
2 years ago
Simplify: 18-|8+3(2+2)-4|
NeX [460]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
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alina1380 [7]

Answer:

slope intercept form is y=mx+b

your m is 4

all you do is plug the numbers in

y=4x+6

4 0
3 years ago
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