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jasenka [17]
2 years ago
5

Find the vertex of the parabola: y = -2x2 - 4x - 7

Mathematics
1 answer:
snow_lady [41]2 years ago
7 0
X=-b/2a=4/14=2/7
Plug this value back into the function to find the corresponding Y value
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Identify the reciprocal of each number. Type it in the blank, using a slash () to show a fraction,
amid [387]

Answer: 6/5

Step-by-step explanation:

When finding the reciprocal, we essentially just "flip" or take the inverse of the number we are given. For example, the reciprocal of 1/2 would be 2/1 or 2. The given number multiplied by the reciprocal should always equal 1. If it does, then we know we are correct.

In this case, we are finding the reciprocal of 5/6, so we "flip" the numerator and the denominator to get 6/5.

To check our work, we need to multiply our original number and its reciprocal.

5/6 x 6/5 = 30/30 = 1

Now, we know we are correct, that the reciprocal of 5/6 is 6/5.

4 0
2 years ago
The difference of the range and the interquartile range of the data set represented by the box plot is .
Ivahew [28]
When presented with a box plot, it is better to identify the 5 numbers that are important in the box plot.

5 number summary of the boxplot.
1) minimum number - 16
2) 1st quartile - 21
3) 2nd quartile or median - 26
4) 3rd quartile - 29
5) maximum number - 34

Range is the difference of the maximum value from the minimum value of the data set.
Interquartile range is the difference of the 3rd quartile from the 1st quartile.

Range: 34 - 16 = 18
IQR: 29 - 21 = 7


6 0
3 years ago
Read 2 more answers
Henry bought 4 pies, which he plans to share with a group of his friends. If there is exactly enough to give each
Cloud [144]

Answer:

Step-by-step explanation:

4 pies.. cut into 6 slices each.. is 4 *6 = 24

8 0
3 years ago
Read 2 more answers
I need help NOW please and if you can, go to my other questions and try to help me out with those tooo!!!!!!!
kari74 [83]

Answer:

B. y = sinx

Step-by-step explanation:

kasi yan ang "Tamang Sagot"

3 0
2 years ago
Determine whether the triangles are congruent. Explain your reasoning .
Nookie1986 [14]

Answer:

Step-by-step explanation:

First use the fact that the sum of interior angles of a triangle is 180° to find the measure of the missing angle

in ΔDEF we have 180 -68 -81 = 31°

in ΔABC we have 180 -68 -33 = 79°

the measure of the angles in ΔABC and ΔDEF are different 33°, 68°, 79° ≠81°, 68°, 31°so the two triangles are not congruent.

6 0
2 years ago
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