Answer:
Zamir 75%
Caleb 72%
Rosa 76%
Work
<u>Zamir</u>
.75=75%
75*40=3000
3000/ 100= 30
<u>Zamir got 30 out of 40</u> questions right
<u>Caleb</u>
30-12=18
<u>Caleb got 18 out of 25</u> questions right now find percent
18*100=1800
1800/ 25= 72
Caleb got 72%
<u>Rosa</u>
18+1=19
<u>Rosa got 19 out of 25 </u>questions correct now find percent
19*100=1900
1900/ 25=76
Rosa got 76%
Answer:
could you just put a question i cant see them
Step-by-step explanation:
Answer:

Step-by-step explanation:
By definition:
The pre-meter P of a triangle ABC is equal to the sum of the length of its sides.
We know that:

The perimeter is:

Now we find the length of the sides:

Once the length of the sides is known, we use Heron's formula to calculate the area.
First I find the semiperimeter S.

Then the Area is:

Answer:
b = 6√15
Step-by-step explanation:
6² + b² = 24²
36 + b² = 576
b² = 540
b = √540
b = √9 · √60
b = 3 · √60
b = 3 · √4 · √15
b = 6 √15