All categories

2 years ago

Find the area of the isosceles triangle.13 cm10 cm

Mathematics

2 answers:

insens350 [35]2 years ago

7 0

Answer:

65 cm

Step-by-step explanation:

A= 1/2 bh

A= 1/2 (13 cm) (4 cm)

A= 65 cm

Leviafan [203]2 years ago

6 0

The area is 65

Hope this helps

You might be interested in

Although cities encourage carpooling to reduce traffic congestion, most vehicles carry only one person. For example, 64% of vehi

ira [324]

Answer:

a) 0.7291 is the probability that more than half out of 10 vehicles carry just 1 person.

b) 0.996 is the probability that more than half of the vehicles carry just one person.

Step-by-step explanation:

We are given the following information:

A) Binomial distribution

We treat vehicle on road with one passenger as a success.

P(success) = 64% = 0.64

Then the number of vehicles follows a binomial distribution, where

$P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}$

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 10

We have to evaluate:

$P(x \geq 6) = P(x =6) +...+ P(x = 10) \\= \binom{10}{6}(0.64)^6(1-0.64)^4 +...+ \binom{10}{10}(0.64)^{10}(1-0.79)^0\\=0.7291$

0.7291 is the probability that more than half out of 10 vehicles carry just 1 person.

B) By normal approximation

Sample size, n = 92

p = 0.64

$\mu = np = 92(0.64) = 58.88$

$\sigma = \sqrt{np(1-p)} = \sqrt{92(0.64)(1-0.64)} = 4.60$

We have to evaluate the probability that more than 47 cars carry just one person.

$P(x \geq 47)$

After continuity correction, we will evaluate

$P( x \geq 46.5) = P( z > \displaystyle\frac{46.5 - 58.88}{4.60}) = P(z > -2.6913)$

$= 1 - P(z \leq -2.6913)$

Calculation the value from standard normal z table, we have,

$P(x > 46.5) = 1 - 0.004 = 0.996 = 99.6\%$

0.996 is the probability that more than half out of 92 vehicles carry just one person.

5 0

2 years ago

While away at school, Eileen receives an allowance of $400 each month, 35 percent of which she uses to pay her bills. If she bud

Mnenie [13.5K]

Eileen is able to save 13% of her allowance each month.

4 0

3 years ago

Oceanside Bike Rental Shop charges a 13 dollar fixed fee plus 9 dollars an

tatyana61 [14]

58-13=45 45/9=5 Carlos rented the bike for 5 hours

4 0

3 years ago

Read 2 more answers

Val takes her four sons, Hal, Cal, Sal and Mal, to get their hair cut. It's crowded, so there's only time for two of them to get

konstantin123 [22]

first column... A) H then S

Second column... B) S then M

PLEASE RATE AS THE BRAINLIEST ANSWER! THANK YOU! :)

6 0

3 years ago

Write a polynomial to represent the perimeter of a rectangle with sides 2x+1 and 3x

otez555 [7]

The answer would be : 5x+1
Just add 2x and 3x

6 0

3 years ago

Find the area of the isosceles triangle.13 cm10 cm​

Find the area of the isosceles triangle.13 cm10 cm