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Sladkaya [172]
3 years ago
11

Please help this is a big test

Mathematics
1 answer:
maw [93]3 years ago
8 0

Answer:it’s c

Step-by-step explanation:I don’t have one sorry I’m to kazy to type it

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Use the data in the following table, which summarizes results from 179 pedestrian deaths that were caused by accidents. If two d
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Total pedestrian deaths = 179

Total number of deaths that involved intoxicated driver = 96 + 40 = 136

Two accidents are randomly selected without replacement, thus;

Probability = desired outcome / total number of outcome

<span>Probability = (136/179) x (135/178) = 0.7597x0.7584 = 0.5761</span>

3 0
4 years ago
Mitch lives on the 20th floor of an apartment building. Every time he leaves, he rides a self-service elevator from the 20th flo
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Answer:

He does that because he is short and his hand can't reach the 20th floor button

Step-by-step explanation:

Mitch does that simply because he is short.

When he is leaving, he doesn't need to reach the 20th floor button because the button is way taller than the reach of his hands whereas when he is returning he has to reach the 20th floor button but his hand can only reach the 15th floor button. Thus, he gets to the 15th floor and walks up the remaining 5 flights.

5 0
3 years ago
A recipe for apple crisp uses 4 parts oats,8 parts brown sugar,and 10 parts flour. In simplest form,how many parts of brown suga
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Answer:

8:10

Step-by-step explanation:

8 parts for brown sugar and 10 parts flour.

In simplest, 4:5 (divide 8 and 10 by 2)

7 0
3 years ago
Use the parabola tool to graph the quadratic function f(x)=−5x2−2.
alexira [117]

\text{Consider the quadratic function}\\&#10;\\&#10;f(x)=-5x^2-2\\&#10;\\&#10;\text{For a quadratic equation, }f(x)=ax^2+bx+c, \text{ we know that the x-coordinate}\\&#10;\text{of the vertex (h,k) is given by}\\&#10;\\&#10;h=\frac{-b}{2a}\\&#10;\\&#10;\text{on comparing the given equation with standard equation, we have}

a=-5, b=0, c=-2\\&#10;\\&#10;\text{so the x-coordinate of the vertex is }\\&#10;\\&#10;h=-\frac{b}{2a}=-\frac{0}{2(-5)}=0\\&#10;\\&#10;\text{so plug this vlaue of the h in the given function to get the y-coordinate}\\&#10;\text{of the vertex. so}\\&#10;\\&#10;f(x)=-5(0)^2-2=0-2=-2\\&#10;\\&#10;\text{hence the vertex of the parabola is: }(h,k)=(0,\ -2)\\&#10;\\&#10;\text{A second point on the graph can be found by putting x=1, so }\\&#10;\\&#10;f(1)=-5(1)^2-2=-5-2=-7\\&#10;\\&#10;\text{so one other point on the parabola is }(1,-7)

The grpah of the quadratic function is shown below:


5 0
4 years ago
What is a line graph
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Answer:

A graph with points connected by lines to show how something changes in value:

• as time goes by,

• or as something else changes.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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