Answer:
y
=
a
(
x
−
h
)
2
+
k
Step-by-step explanation:
https://socratic.org/questions/what-is-the-vertex-form-of-y-2x-2-7x-15#243713
<h3>20 subtracted from three times a number is 6 more than the number. Then the number is 13</h3>
<em><u>Solution:</u></em>
<em><u>Given statement is:</u></em>
20 subtracted from three times a number is 6 more than the number
We can translate the sentence into algebraic expression
Let "a" be the unknown number
Then,
20 subtracted from three times "a" is 6 more than "a"
Which means,
3a - 20 = 6 + a
3a - a = 6 + 20
2a = 26
Divide both sides by 2
a = 13
Thus the number is 13
Answer: 48
Step-by-step explanation:
60 as a fraction= 60/1
We are going to multiply 60/1x4/5=240/5
The we are going to divide 240/5 and 5/5+ 48/1
and 48/1 is equal to 48
Answer is choice B: the circumference of a circle is the same as perimeter and is defined by πd (or pi times diameter) We can cut this in half because we are working with a semicircle: so we have 6π which approximates to the value in answer
when using 3.14 for pi
Woops: forgot to add the diameter of 12 so we would have 30.84
