All categories

3 years ago

Simplify the expression: 6/3(13−18)+2^4÷6

Mathematics

1 answer:

Makovka662 [10]3 years ago

7 0

Answer:

-7.333

Step-by-step explanation:

You might be interested in

1. f(x) = x; h(x) = 4x - 2

ExtremeBDS [4]

Answer:

=4x-2

Step-by-step explanation:

f=x, h=4x-2, f(x) *h(x): 4x-2

6 0

3 years ago

On each round, Ann and Bob each simultaneously toss a fair coin. Let Xn be the number of heads tossed in the 2n flips which occu

CaHeK987 [17]

Answer:

$P=\frac{2n!}{m!*(2n-m)!}*0.5^{2n}$

Step-by-step explanation:

In a coin toss the probability of tossing a head is 0.5 (50% head/50% tails)

If n is the number of rounds and 2n the number of coins tossed (one for each player), the probability of having m heads tossed is:

$R=\frac{2n!}{m!*(2n-m)!}$

R is the number of cases (combination of coins tossed) that gives a m number of heads. Each case has a probability of $P_{case}=0.5^{2n}$ so:

$P=\frac{2n!}{m!*(2n-m)!}*0.5^{2n}$

<u>For example, to toss 4 heads in 5 rounds: </u>

n=5
2n=10
m=4

$P=\frac{10!}{4!*(10-4)!}*0.5^{10}$

$P=\frac{10*9*8*7*6!}{4!*6!}*0.5^{10}$

$P=\frac{10*9*8*7}{4!}*0.5^{10}$

$P=\frac{10*9*8*7}{4!}*0.5^{10}=0.205$

8 0

3 years ago

Please help me out with number 7

Slav-nsk [51]

The answer for number 7 is x=3

4 0

3 years ago

Is it a b c or d i need help pleaseee

Dmitrij [34]

Answer:

Step-by-step explanation:

5 0

3 years ago

For what values of x is the expression below defined?<br> Look at the picture(15 points)

Leya [2.2K]

Answer:

D. -5 <= x < 1

Step-by-step explanation:

the values under the square-root radical must not be negative, AND

the value of the denominator must not be 0 or negative

x+5 >=0 or x >= -5

and 1-x > 0 or x < 1

So the answer is -5 <= x < 1

4 0

3 years ago