Answer:
She did not qualify the exam.
Step-by-step explanation:
Given data
Total no of question in a test = 20
No. of question answered correctly = 16
Percentage of question answered correctly
![(\frac{16}{20}) 100 = 80](https://tex.z-dn.net/?f=%28%5Cfrac%7B16%7D%7B20%7D%29%20100%20%3D%2080)
But in order to get in the exam the student must have to score at least 90 %. But she got only 80 % so she did not qualify the exam.
If the perimeter is 200 ft and the area is 2100 square feet...
P = 2l + 2w
A = l * w
The dimensions would be 30 ft by 70 ft.
Answer:
48 rocks
Step-by-step explanation:
there are 4 rocks in one pound since each rock weighs 4 ounces so 4 times 12 equals 48
Answer: AD = 9cm
Step-by-step explanation: This is a 30-60-90 triangle, so the hypotenuse is equal to twice the length of the short side of the right angle.
BC is the short side of the large triangle, so AB, the hypotenuse of the large triangle is 2×6, 12 cm
BC is also the hypotenuse of the small triangle, ΔBCD, so it is twice the length of BD, to that makes BD = 6/2= 3
Subtract BD from AB.
That's 12 - 3 = 9 the length of AD
The answer to question 1 is B
the answer to question 2 is B