Answer:
40 girls
Step-by-step explanation:
First you set up a proportion. 4 over 5 is equal to 32 over x
Use the baseball bat method (look up baseball bat method proportions and go to images if you dont know this is just how i learned it)
bb bat method gives you
32x5= 160
160/4= 40
Answer:
Given that your friend in not really psychic, he has a probability of P=1.5% of guessing right 15 out of 20 coin flips.
Step-by-step explanation:
We have a binomial distribution problem.
We have to calculate the probability of correctly guessing 15 out of 20 flips of a coin (probability of success for every trial: p=0.5).
We can calculate that with the binomial distribution formula:
Then we can conclude that, given that your friend in not really psychic, it has only 1.5% of guessing right 15 out of 20 coin flips.
The figure is a cuboid.
Hence, parallel edges to AH are BD, PY, and MK.
Hence, the answer is A and B.
X=4 is equivalent to -6+2x
The formula for the area of a triangle is A = 1/2 x b x height. But, we don't have the height here. To find the height, we can use the Pythagorean theorem.
With Pythagorean theorem, we'll be finding one of the legs. If we split the original triangle in 1/2 from the vertex to the base, we now have two right triangles. Both of these right triangles have a 30 cm hypotenuse and one 13 cm leg (remember we divided the entire original triangle in half).
30^2 = 13^2 + b^2
169 + b^2 = 900
b^2 = 731
b =
Now that we know the height of the triangle, we can find the area.
A = 1/2 x 26 x
A = 13 x
A = 351.48
The final area, rounded to the nearest whole number is 351 centimeters squared.
Note: Please know that depending on if the answer rounded before using it to find the area, the final answer may then be rounded to 352.
Hope this helps! :)