Answer:
Step-by-step explanation:
To get the area of the triangle sides, we use the formula
In words, this is <em>base · height ÷ 2</em>
After using this formula we find the surface area of the triangle sides is 54
Of course because there are two sides, we do 54 + 54 = 108
For the base of the prism, we do <em>12 · 18</em>, which equals 216
For the back, we do <em>9 · 18</em>, which equals 162
For the top, we do <em>15 · 18</em>, which equals 270
Now that we have the individual areas of all the faces, we add them together. Doing this, we get
Answer:
B
Step-by-step explanation:
1/2 * 1 * 2 1/2 = 1 1/4
if theres 8 half unit cubes per unit cube, then we can take the two numbers given to us and divide them by 1 1/4 or 1.25 in decimal
Whether it can be equal to that value. For example, if 5 is greater than x, then an open circle will be useful. If 5 is greater than or equal to x, a closed circle will be used.
Hey there! I'm happy to help!
If 70% of the students are female, then 30% of the students are male. Of these, 85% graduated. Let's find 85% of 30%.
0.85(0.3)=0.255
This means that 25.5% of the students are graduating males.
We want to find the probability that one of the graduating males are picked from the group of graduating people. We have to find how many girls graduated to find the total percent of peole who graduated.
75% of females (70% graduated).
0.75(0.7)=0.525
So, 52.5% of students are graduating females.
We have 52.5% as graduating females and 25.5% are graduating males. We combine this, showing us that 78% of students graduated.
Now, we want to find the probability of picking a graduating male. 25.5% is what percent of 78%? When working with percents, is means equals. Let's say that our percent is p and solve.
0.255=0.78p
We flip the equation so p is on the left.
0.78p=0.255
Divide both sides by 0.78.
p≈0.33 (rounded to nearest hundredth)
Therefore, there is a 33% chance of picking a male from the graduating students.
Have a wonderful day! :D