Answer:The circumference of a circle is directly proportional to its radius. The ratio between a circle's circumference and its diameter is pi, a constant that equals approximately 3.142. The circle's diameter, in turn equals twice the radius. A regular solid that has a circle as a face is called a cylinder.
Step-by-step explanation:
The first thing we should do is turn our mixed number into an improper fraction. To do this, you should multiply the whole number by the denominator, and then add the numerator and place it over the denominator.
Now our problem is 1/3+5/2. Now, we need to find the least common denominator, which is the lowest proportion where these fractions have the same denominator.
Here, we will just multiply the numerator and denominator by 2 and 3, respectively
1/3+5/2 = 2/6+15/6
Now, it is as simple as adding the numerators.
2/6+15/6=17/6
No simplification is needed, so we know this expression is equal to 17/6 or 2 5/6.
Answer: x = 2, -5
Step-by-step explanation:
Answer:
Step-by-step explanation:
The first statement is correct. The volume of this rectangular prism is v = l*w*h, and so 495 cm^3 = (12*2.5 cm^2)*h is correct.
To find h, Zoe should divide 495 cm^3 by (12*2.5 cm^2), so the second statement is wrong.
The third statement is incorrect, due to an arithmetic error. 495 cm^3 divided by (12*2.5 cm^2) is 16.5 cm, not 15.5 cm. Thus: the missing height, h, is 16.5 c.m.
no. of right answers = 60
no. of wrong answers = 40