3 years ago

Solve for x. assume that lines which appear to be tangent are tangent

Mathematics

1 answer:

Setler [38]3 years ago

7 0

Answer: 9

Step-by-step explanation:

2X+5=3X-4

-2X. -2X

5= X-4

9=X

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</span>
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3 years ago

A and B are two events. Let P(A)=0.5 , P(B)=0.9 and P(A and B)=0.15 .

Nana76 [90]

Answer:

option-C

Step-by-step explanation:

we are given

Let P(A)=0.5

P(B)=0.9

P(A and B)=0.15

we know that

$P(A|B)=\frac{P(Aand B)}{P(B)}$

now, we can plug values

$P(A|B)=\frac{0.15}{0.9}$

$P(A|B)=0.16666$

but we have

P(A)=0.5

we can see that both are not equal

$P(A|B)\neq P(A)$

so, A and B are not independent

so, option-C........Answer

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3 years ago

How many solutions are in 6x+30+4x=10(x+3)

Jobisdone [24]

First, let's simplify the equation.

$6x + 30 + 4x = 10(x + 3)$

Set up

$10x + 30 = 10(x + 3)$

Combine like terms

$10x + 30 = 10x + 30$

Apply the Distributive Property to the right hand side of the equation

$30 = 30$

Subtract $10x$ from both sides of the equation

Since the right and left sides of the equation are equal, we know that there must be an infinite number of solutions. This means that there is an infinite amount of values that we can substitute for $x$ for the equation to be true.

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3 years ago

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