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3 years ago

11

If one coin is flipped and then a second coin is flipped, what is the probability that both coins turn up tails? question 18 opt

ions:

1 answer:

Mademuasel [1]3 years ago

4 0

First you find the probability of each coin turning up tails, then you multiply the two probabilities together:
1/2 x 1/2 = 1/4

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If p(a)=0.24 and p(b)=0.52 and a and b are independent, what is p(a or b)?

Crank

Download the app photo math and there is the answer

3 0

3 years ago

Equation álgebra<br> 3x^2 = 12<br> a. +3<br> b. +2<br> C. +3.5<br> d. +1.5

Tom [10]

Answer:

x=-2,2

Step-by-step explanation:

Since this is a quadratic equation, -2 or 2 could be the possible answer

Steps

$3x^2=12$

$\mathrm{Divide\:both\:sides\:by\:}3$

$\frac{3x^2}{3}=\frac{12}{3}$

$\mathrm{Simplify}$

$x^2=4$

$\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

$x=\sqrt{4},\:x=-\sqrt{4}$

Show Steps

$\sqrt{4}=2$

Show Steps

$-\sqrt{4}=-2$

$x=2,\:x=-2$

3 0

4 years ago

HELP PLEASE ASAP..........

Usimov [2.4K]

Volume = l x w x h
180 = l (5 x 4)
180 = 20 l
6 = l

That means that the couch will fit, because the length of the van is 6 ft, which is also the length of the couch.

6 0

3 years ago

The graph below shows a system of equations: Draw a line labeled y equals minus x plus 5 by joining the ordered pairs 0, 5 and 5

Montano1993 [528]

Answer:

The x-coordinate of the solution is x=3

Step-by-step explanation:

we have

$y=-x+5$ ------> equation A

$y=x-1$ ------> equation B

Solve the system of equations by substitution

Substitute equation B in equation A and solve for x

$x-1=-x+5$

$x+x=5+1$

$2x=6$

$x=3$

Find the value of y

$y=x-1$ ------> $y=3-1=2$

The solution of the system of equations is the point (3,2)

therefore

The x-coordinate of the solution is x=3

5 0

3 years ago

Fiona divided 3x2+5x-3 by 3x+2. The expression represents the remainder over the divisor.

Lera25 [3.4K]

Answer:

-5

Step-by-step explanation:

Shown in the attachment.

The remainder when 3x^2 +5x -3 is divided by 3x+2 is -5

4 0

4 years ago