First round 6254 to 6000 then multiply it by 2.
6,254=6,000x2=12,000
If you need help on the multiplying bit here is how you do it:
First take the whole numbers so 6 and 2. Next multiply them. 6x2=12. Then all you do is add the zeros. So in this case there are three zeros so 12,000 is your estimated answer.
Answer:
5.4978 feet
Step-by-step explanation:
The area of a circle is pi(r)^2, so, in this case, pi(1/2)^2.
That equals 0.7854.
Since 1 inch = 7 feet, 0.7854 x 7 = 5.4978 feet is the actual answer. :)
Answer:
x = 2 and x = -2
Step-by-step explanation:
The quadratic formula of a quadratic of the form ax² + bx + c is:
x = or x =
Here, our equation is: 3x² - 18 = -6. Let's move all the terms to one side:
3x² - 12 = 0
a = 3 and c = -12. Notice that since there's no x term, b = 0.
Plug these into the quadratic formula:
x =
or
x =
So, x = 2 and x = -2.
In this problem, two binomials are being multiplied.
First, you see the First terms multiplied together, x^2 and -5x^2.
Then you see the Outside terms multiplied together, x^2 and x.
Next, you see the Inside terms multiplied together, -2 and -5x^2.
Finally, the Last terms are multiplied together, -2 and x.
Put together the bold letters above and you spell FOIL.
FOIL is a way to remember how to multiply two binomials.
F - multiply the First terms.
O - multiply the Outside terms.
I - multiply the Inside terms.
L - multiply the Last terms.
In general, to multiply to binomials
(a + b)(c + d) =
F: ac
O: ad
I: bc
L: bd
= ac + ad + bc + bd
Answer: Choice A. FOIL
Answer:
A is your answer
Step-by-step explanation: