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3 years ago

PLEASE HELP

Mathematics

1 answer:

balu736 [363]3 years ago

7 0

Answer:

slope = 1

Step-by-step explanation:

-3 | -3

5 | 5

_____

8 | 8

8/8= 1

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Select all the numbers that are greater than 7.612.

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F. 7.615 B.7.73 D. 7.62

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3 years ago

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Simplify: (2x-3)(4x+1)

mixas84 [53]

Answer:

$8x^2-10x-3$

Step-by-step explanation:

$(2x-3)(4x+1)$

$2x(4x+1)-3(4x+1)$

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3 years ago

If the probability of a student taking a calculus class is 0.10, the probability of taking a statistics class is 0.90, and the p

Stells [14]

Answer:

93% probability of a student taking a calculus class or a statistics class

Step-by-step explanation:

We solve this problem building the Venn's diagram of these probabilities.

I am going to say that:

A is the probability that a student takes a calculus class.

B is the probability that a student takes a statistics class.

We have that:

$A = a + (A \cap B)$

In which a is the probability that a student takes calculus but not statistics and $A \cap B$ is the probability that a student takes both these classes.

By the same logic, we have that:

$B = b + (A \cap B)$

The probability of taking a calculus class and a statistics class is 0.07

This means that $A \cap B = 0.07$

The probability of taking a statistics class is 0.90

This means that $B = 0.9$ . So

$B = b + (A \cap B)$

$0.9 = b + 0.07$

$b = 0.83$

The probability of a student taking a calculus class is 0.10

This means that $A = 0.1$

$A = a + (A \cap B)$

$0.1 = a + 0.07$

$a = 0.03$

What is the probability of a student taking a calculus class or a statistics class

$A \cup B = a + b + A \cap B = 0.03 + 0.83 + 0.07 = 0.93$

93% probability of a student taking a calculus class or a statistics class

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3 years ago

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Dvinal [7]

Answer:well for the first one I am not sure but I think that since four is over the x there should be 4/x + 3 so tragically I don’t know the answer but I think it should be 12 the x should be 12 because 4x3=12 so yea 12

Step-by-step explanation:and for the other one I don’t know but ima try it should be two because 2x2=4 and so y=1-2x2-4 that’s what I think sorry. I got it wrong and do good on your test for me please

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2 years ago

Please help me! its due today! ill mark the first person to get this right most brilliance, and ill rate you 5 stars and thank u

Lady_Fox [76]

Whew chile thats math ?

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3 years ago