3 years ago

What is the answer to this question algbra

Mathematics

1 answer:

navik [9.2K]3 years ago

5 0

Answer:photo math

Step-by-step explanation:

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Please help me asap.

VLD [36.1K]

Answer

-7

Step-by-step explanation:

from what I understand you sub 0 by x

so 0-7

this will give -7

7 0

2 years ago

Read 2 more answers

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:

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

For example, to toss 4 heads in 5 rounds:

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

2 years ago

Help ILL GIVE TONS OF POINTS NO LINK OR I REPORT find the area of the shape shown below

Zanzabum

Answer:

Step-by-step explanation:

7 0

3 years ago

A television station allows 15 minutes of advertising each hour. How many 30 second (1/2 minute) commercials can be run in 1 day

AleksAgata [21]

(15 minutes/hour) x (1 spot / 1/2 minute) x (24 hour/day) = 720 spots/day

3 0

2 years ago

Solve for x. 25x=65 1225 125 3 6

NARA [144]

$25x = 65$
Divide both sides by 25 to isolate x:

$\frac{25x}{25} = \frac{65}{25} \\ \\ x = \frac{13}{5} = 2.6$

8 0

3 years ago

Read 2 more answers