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Ainat [17]
2 years ago
13

In a class of students, the following data table summarizes how many students have a cat or dog. What is the probability that a

student chosen randomly from the class has a cat?

Mathematics
1 answer:
nadezda [96]2 years ago
7 0

Answer:

from this we know there is 30 people in the class and 14 of them have a cat so the probability is 14/30

14/30

7/15

7/15 as a percent is 46.6667%

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3 0
3 years ago
If x/y + y/x = -1 , ( x unequal y, y unequal 0) then the value of x^2 - y^2 is?
Maurinko [17]

Take your original equation \frac{x}{y} +\frac{y}{x} =-1

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x^2+y^2=-xy

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3 0
3 years ago
Read 2 more answers
Solve 2x^2+x=15.!!!!
larisa86 [58]

Isolate the variable by dividing each side by factors that dont contain variables

Answer: x=3

8 0
3 years ago
The exppreson of 10x^2-7
erica [24]

The complete question is :

Question: What is the coefficient in the expression 10x²-7?

The coefficient in the expression 10x^{2} -7 is 10

<h3>What is Coefficient?</h3>

A numerical or constant quantity placed before and multiplying the variable in an algebraic expression.

According to the question,

The expression given is 10x^{2} -7

The variable given is x

We need to find the coefficient in the expression.

In the given expression x is the variable and the number before the x is coefficient which is 10 .

Hence the coefficient in the expression is 10.

Learn more about coefficient here:

brainly.com/question/22241464

#SPJ1

3 0
1 year ago
This is due today can anyone help ?
Lorico [155]

Answer:

C

Step-by-step explanation:

you need to start by plugging in -2x+4 every were it says y then solve for x when you have found x plug it into one of the equations and solve for y

7 0
2 years ago
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