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3 years ago

12

When rolling a die (1) what's the probability of getting an even number in two successive throws??

1 answer:

zzz [600]3 years ago

8 0

Answer: I think it would be a 50/50 chance of getting 2 even numbers.

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(+6) + (-11) + (+5)+(-7)

tensa zangetsu [6.8K]

Answer:

(+6) + (-11) + (+5)+(-7)

(6) + (-11) + (5) - (7)

6 - 11 + 5 - 7

(6 + 5) + (-11 - 7)

11 - 18

= -7

3 0

2 years ago

Read 2 more answers

hi guys the problem is i don't know how to use this so i will post this for fun lol i hope this help your day get better because

ValentinkaMS [17]

Answer: thats fun i guess keep Vibin doe

Step-by-step explanation:

4 0

2 years ago

2^7/2^3 basic exponent rules

Stells [14]

Answer:

Step-by-step explanation:

Since they have the same base as 2, by the rule of a^m / a^n = a^m-n.

So 2^7 / 2^3 = 2^ 7-3 = 2^4 = 16

6 0

2 years ago

Read 2 more answers

Find the slope of the line passing through each of the following pairs of points: A(−7, a) and B(c, d)

Mrrafil [7]

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points A(-7, a) and B(c, d).

Substitute:

$m=\dfrac{d-a}{c-(-7)}=\dfrac{d-a}{c+7}$

Exception: c ≠ -7.

3 0

3 years ago

Find the exact value of tan(x-y) if sin x=8/17 cosy = 3/5

jolli1 [7]

To solve the the question we proceed as follows:

From trigonometric laws

$(cos x)^2+(sin x)^2=1$

$(cos x)^2+(sin x)^2=1$

$sin (x-y)=sin$ $x$ $sin$ $y-sin$ $y$ $cos$ $x$

$cos (x-y)=cos$ $x$ $cos$ $y+sin$ $x$ $xin$ $y$

si $x=\frac{8}{17}$

$cos$ $x=sqrt(1-(sin x)^2)=sqrt(1-64/289)=sqrt(\frac{225}{289} )=\frac{15}{17}$

$cos$ $y=\frac{3}{5}$

$sin$ $x= sqrt(1- (cos x)^2)= sqrt(1-\frac{9}{25} )=sqrt(\frac{16}{25} )=\frac{4}{5}$

thus

$tan (x-y)=[sin (x-y)]/[cos (x-y)]$

=[sin x cos y-sin y cos x]/[cos x cos y+sin x sin y]

plugging in the values we obtain:

$[8/17 *3/5-4/5*15/7]/[15/17*3/5+8/17*4/5]$

simplifying

$[24/85-60/85]/[45/85+32/85]$

$=-\frac{36}{77}$

6 0

2 years ago