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noname [10]
3 years ago
5

Mrs.Brown gives two tests to her class. 30% of the class passed both tests and 45% of the class passed the first test. What perc

ent passed the second test given that they passed the first test?
Mathematics
1 answer:
Nady [450]3 years ago
4 0

Answer:

15%

30 percent passed BOTH tests.....Only 15% passed ONLY first test

30/(30+15) = 67% of those who passed the first test ALSO passed the second test.

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(6 x 10 to the power of -1) - (5 x 10 to the power of -3)
IgorC [24]

Answer:

0.595.

Step-by-step explanation:

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6 0
3 years ago
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A drawing of a tree and a wall are in the image below.
mina [271]

Answer:

<em>Choice B. 16 feet.</em>

<em>The height of the tree is 16 ft</em>

Step-by-step explanation:

<u>Similar Triangles</u>

Similar triangles have their corresponding side lengths proportional by a fixed scale factor.

We are given the drawings of a tree and a wall and it's assumed both triangles are similar. We need to find the scale factor and find the height of the tree.

Comparing the corresponding distances from the viewer to the base of the tree and the base of the wall, we can calculate the scale factor as 24/6=4.

Applying the same factor to the height of the model, we get the height of the tree is 4*4 = 16 ft.

Choice B. 16 feet

The height of the tree is 16 ft

6 0
3 years ago
What is the value of a for the Exponential function in the graph represented in the form of f(x) =a(b^)
artcher [175]

Answer:

Step-by-step explanation:

When x=0, y = ab⁰ = a

The y-intercept of the graph is 3, so a=3.

7 0
3 years ago
An asteroid follows a hyperbolic path defined by the equation 16x2 − 9y2 = 576. If one of its foci is the sun's position, the mi
amid [387]
The minimum distance between the asteroid and the sun is 10 - 6 =4


The given hyperbolic path defined as
divide both the sides by 576,



The general equation of

hyperbola is written as
;

Compare with above mention equation
Here

The distance between the asteroid and the sun is seen by figure -1
or
⇒c =10

The minimum distance between the asteroid and the sun is 10 -6 =4
4 0
3 years ago
There is 5/6 of an apple pie left from dinner. Tomorrow, Victor plans to eat 1/6 of the pie that was left. How much of the whole
Lady_Fox [76]
5/6 = 83% 
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83% of the apple pie was left from dinner. 
Victor is gonna eat 16% of the pie tomorrow 
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In other words 5/6-1/6


The denominators are same so you don't have to do anything to them  
5/6 - 1/6 

5-1=4

4/6 of the pie would be left 
In simplest form it would be 

4/6     <span> ÷2</span>
=2/3

2/3 is in simplest form 

5 0
3 years ago
Read 2 more answers
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