Answer:
4 x 5 x 9 x 2 x 2 = 720
Step-by-step explanation:
Multiply 4 and 5 to get 20.
20 x 9 x 2 x 2
Multiply 20 and 9 to get 180.
180 x 2 x 2
Multiply 180 and 2 to get 360.
360 x 2
Multiply 360 and 2 to get 720.
= 720
Hope this helps. =D
Hello!
Explanation:
First, you had to do is multiply by 3 from both sides of an equation.
And then simplify by equation form. You can also multiply by the numbers.
Answer:
<u><em>*The answer must have a positive sign.*</em></u>
Hope this helps!
Thanks!
-Charlie
Start by taking away 22.36 from each side so that you are left with 4.73c = 42.57
And then divide each side by 4.73 so you will get c = 9
Answer:
√50 lies between 7 and 8.15
Step-by-step explanation:
<em>your</em><em> </em><em>welcome</em><em>.</em>
Step-by-step explanation:
Simplifying
(7a + 3b)(7a + -3b) = 0
Multiply (7a + 3b) * (7a + -3b)
(7a * (7a + -3b) + 3b * (7a + -3b)) = 0
((7a * 7a + -3b * 7a) + 3b * (7a + -3b)) = 0
Reorder the terms:
((-21ab + 49a2) + 3b * (7a + -3b)) = 0
((-21ab + 49a2) + 3b * (7a + -3b)) = 0
(-21ab + 49a2 + (7a * 3b + -3b * 3b)) = 0
(-21ab + 49a2 + (21ab + -9b2)) = 0
Reorder the terms:
(-21ab + 21ab + 49a2 + -9b2) = 0
Combine like terms: -21ab + 21ab = 0
(0 + 49a2 + -9b2) = 0
(49a2 + -9b2) = 0
Solving
49a2 + -9b2 = 0
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '9b2' to each side of the equation.
49a2 + -9b2 + 9b2 = 0 + 9b2
Combine like terms: -9b2 + 9b2 = 0
49a2 + 0 = 0 + 9b2
49a2 = 0 + 9b2
Remove the zero:
49a2 = 9b2
Divide each side by '49'.
a2 = 0.1836734694b2
Simplifying
a2 = 0.1836734694b2
take the square root of each side:
a = {-0.428571429b, 0.428571429b}