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Sindrei [870]
3 years ago
14

Please help me the venn diagram is wrong too im confused on how to do this :(((

Mathematics
1 answer:
Kisachek [45]3 years ago
8 0

Answer:

probability of chosing a student that has a cat and a dog is 9/25

Step-by-step explanation:

And yes the Venn diagram is wrong because you forgot to subtract 9 from 15 and 16

This makes it

[ 3 ( 6 ( 9 ) 7 ) ]

3 + 6 + 9 + 7 = 25

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mariarad [96]
If Farmer George starts painting in the morning, and only has 3/4 of a chicken coop left to paint:
3-3/4=
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To put it in a mixed number,  2 1/4 (aka 2.25)
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3 years ago
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Find the area of the rectangle.
kirill115 [55]

Answer:

40 units²

Step-by-step explanation:

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3 years ago
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A projectile is launched from the ground at an angle of theta above the horizontal with an initial speed of v in​ ft/s. The rang
VARVARA [1.3K]

Answer:

\theta=24.4^\circ

Step-by-step explanation:

The formula you wrote has the fraction the other way around. You can find that the range​ of a projectile is in reality approximated by the equation x=\frac{v^2}{g} sin(2\theta)=\frac{v^2}{32ft/s^2} sin(2\theta), where we will use ft for distances.

From the given equation we have then \frac{x32ft/s^2}{v^2} =sin(2\theta), which means \theta=\frac{Arcsin(\frac{x32ft/s^2}{v^2})}{2} since the arcsin is the inverse function of the sin.

Since we have x = 170 ft and  v = 85 ft/s, we can substitute these values from the equation written, and we will have \theta=\frac{Arcsin(\frac{(170ft)(32ft/s^2)}{(85ft/s)^2})}{2}, and from now on we have just to use a calculator, obtaining \theta=\frac{Arcsin(0.75294117647)}{2}=\frac{48.84579804^\circ}{2}=24.4^\circ

3 0
3 years ago
There are different ways to represent 2 2/3 Select the three choices below that represent 2 2/3.
AfilCa [17]

Answer:

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Step-by-step explanation:

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