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4 years ago

The table shows the results of a survey of students in two math classes. Find P(more than 1

Mathematics

1 answer:

Mariulka [41]4 years ago

3 0

Answer:

0.545

Step-by-step explanation:

In the missing table the following information is shown:

Did You Watch More Than One Hour of TV Last Night?

3rd Period Class: Yes- 11 No- 6

6th Period Class: Yes- 12 No- 10

The probability that the student watched more than 1 hour of TV given that he/she belongs to 6th period class is:

P(more than 1 hour of TV | 6th period class) = 12/(12+10) = 0.545

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Find the value of x in the isoscleles triangle sqrt45 and altitude 3

Alisiya [41]

Answer:

$c.\hspace{3}x=12$

Step-by-step explanation:

Isosceles triangles are a type of triangles in which two of their sides have an identical length. It should be noted that the angles opposite the sides that are the same length are also the same. This means that these triangles not only have two equal sides, but also two equal angles.

You can solve this problem using different methods, I will use pythagorean theorem. First take a look at the picture I attached. As you can see:

$x=2a$

And we can find a easily using pythagorean theorem:

$(\sqrt{45} )^{2} =3^{2} +a^{2}$

Solving for a:

$a^{2} =(\sqrt{45} )^{2} -3^{2} \\\\a^{2} =45-9\\\\$

$a^{2} =36\\\\a=\sqrt{36} \\\\a=6$

Therefore:

$x=2a\\\\x=2(6)\\\\x=12$

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4 years ago

Carl has three picture frames. The thicknesses of the frames are 4/5 inch, 3/12 inch, and 5/6 inch. What are the thicknesses in

Marrrta [24]

3/12 4/5 5/6 find the lowest common multiple

7 0

3 years ago

Given a pre-image And image on a grid, how do you determine the translation that was performed?

prisoha [69]

Answer:

Count how many units up and down were required to locate the preimage to the image. Ex change in y was 5, and x was 3.

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3 years ago

Jim earns $30 for each lawn he mows. Jim wants to earn at least $180 next week mowing lawns. Which inequality will help Jim dete

tester [92]

Answer:

d. 30x ≥ 180

Step-by-step explanation:

if x is the number of lawns and 30 is how much he gets for each lawn, it would be 30x. And in this situation, it needs to be equal to or more than 180.

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4 years ago

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Parallelogram ABCD is a rectangle.

svp [43]

Y = 3 because in a rectangle, the diagonals are ALWAYS congruent. so you would have:
5y - 2 = 4y + 1
-4y+2 -4y + 2
y = 3

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4 years ago

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