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3 years ago

What is the probability of flipping a coin 10 times and getting heads 4 times?

Mathematics

2 answers:

svet-max [94.6K]3 years ago

7 0

I think it’s D sorry if I’m wrong

Dennis_Churaev [7]3 years ago

4 0

The answer is B, my friend

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Find the prime factorization for the number 48 expressed in exponential notation.<br>Thank you.

STatiana [176]

48
12 * 4
6 * 2 * 2 * 2
3 * 2 * 2 * 2 * 2
it should be 3 * 2^4...but that is not an answer choice

3 * 2^2 * 4 is ur answer....apparently they didn't factor the 4

6 0

3 years ago

Sarah has a brother who is 5 years younger than herself and another brother who is 8 years younger than herself. She observes th

ELEN [110]

Answer:

Sarah is 13 years old

Step-by-step explanation:

Represent Sarah's age with S

Her first brother's age with F

Her second brother's age with B

So, we have:

From the first statement, we have:

$S - F = 5$ ---- (1)

From the second, we have:

$S - B = 8$ ---- (2)

The product of their ages is 40.

First, we make F the subject in (1) and B the subject in (2)

$F = S - 5$

$B = S - 8$

Their product is represented as follows:

$F * B = 40$

Substitute values for F and B

$(S - 5) * (S - 8)=40$

Open bracket

$S^2 - 5S -8S + 40 = 40$

$S^2 - 13S + 40 = 40$

Subtract 40 from both sides

$S^2 - 13S = 0$

Factorize:

$S(S - 13) = 0$

Split:

$S = 0$ or $S - 13 = 0$

But Sarah's age can't be 0 because she has two younger brothers.

So, we stick to

$S - 13 = 0$

Make S the subject

$S = 13$

<em>Hence, Sarah is 13 years old</em>

3 0

3 years ago

2/9 of students in a school are in sixth grade how many sixth graders are in the school if the school has 27 students

Pani-rosa [81]

Answer:

The areas of the squares adjacent to two sides of a right triangle are shown below.

What is the area of the square adjacent to the third side of the triangle?

units^2

Step-by-step explanation:

5 0

3 years ago

Reasoning point F lies on EG and point M lies on EN. If F,E, and M are collinear, what must be true of these rays.

almond37 [142]

This means that all of the points are co-linear. This is because if EG is a segment that contains F, and EN is a segment that contains M, then there can be two different segments. However, for a point F on the first segment and a point M on a second segment be in the same line as an end point of one of the segments, the segments have to be co-linear. They overlap.

6 0

3 years ago

Read 2 more answers

In six months the membership at a fitness center went from 3,500 to 4,200. what was the percent of increase in the membership?

slega [8]

It is definitely C: 20%

Subtract the original value from the new value, then divide the result by the original value then multiply the result by 100 and it will give you the answer

$\frac{4200 - 3500}{3500} \times 100$
$\frac{700}{3500} \times 100$
$0.2 \times 100 = 20\%$

6 0

3 years ago