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2 years ago

PLS HELP ASAP NOW I REALLY NEED HELP ITS PYTHAGOREAN THEOREM

Mathematics

1 answer:

vodomira [7]2 years ago

3 0

Answer:

a=7.14yd

Step-by-step explanation:

process same as in above question

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2 to the power of negative 6

Alik [6]

Answer:

0.015625

Step-by-step explanation:

2^-6=0.015625

you can do it on any calculator to check

6 0

3 years ago

Read 2 more answers

Find the area of the circle with a circumference of

Anton [14]

Answer:

706.50 mm^2

Step-by-step explanation:

The formula to find the circumference is 2πr (r : radius)

if the circumference is 30π the the radius is = 15

to find the area we use the following formula :

π*r^2

r = 15 and π is given as 3.14

(3.14)*15^2 = 706.50 mm^2

8 0

2 years ago

If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?

andre [41]

Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: $\frac{35}{128}$

Step-by-step explanation:

We need to find the probability that you will get exactly 4 tails, if you flip a fair coin 7 times.

This is the combination question.

The total combinations will be: 2^7=128

Now, finding number of ways we can get exactly 4 tiles:

We will use the formula:

$^nC_k=\frac{n!}{k!(n-k)!}$

in our given question, n= 7, k= 4

Putting values:

$^nC_k=\frac{n!}{k!(n-k)!}\\^7C_4=\frac{7!}{4!*3!}\\ ^7C_4=\frac{7*6*5*4!}{4!*3!}\\ ^7C_4=\frac{7*6*5}{6}\\ ^7C_4=35$

So, Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: $\frac{35}{128}$

Keywords: Probability

Learn more about Probability at:

#learnwithBrainly

7 0

3 years ago

A number divided by 6 is 18

m_a_m_a [10]

Answer:

108

Step-by-step explanation:

x=number

___. = 18

Multiply 6 on both sides to get X by itself

18x6=108

x=108

4 0

3 years ago

Read 2 more answers

In a bag of 50 marbles, 20 marbles are blue or pink.

Scorpion4ik [409]

Answer:

40%

Step-by-step explanation:

The ratio is 20:50, we can expand to 40:100, so 40%

8 0

2 years ago