Answer:
1) 12x-4
2) 5x^2+6x-3
Step-by-step explanation:
For number one, just multiply 3x-1 by for using the distributive property.
This would be 4(3x-1) = 12x-4.
For the second question, you know that you need to add something to 2x^2-6x-12 in order to get 7x^2-15.
2x^2 + ? =7x^2. The question mark would be 5x^2.
You can see that there is no x variable in 7x^2-15. That means you just need to take the opposite of -6x, which is 6x.
Finally to go from -12 to -15, you need to subtract 3.
This will leave you with 5x^2+6x-3
120 inches because 3 meters is equal to 118.11 and that rounded to the nearest ten equal 120
40 - 28 do that and you'll get your answer
7 + 0.4 + 0.03 + 0.006 is expanded form
Word form is
Seven and four hundred thirty-six thousandths
Hope this helps :)
1 / cos^2 O - 3 / cos O - 2 = 0
1 - 3 cos O - 2 cos^2 O = 0
2 cos^2 O + 3 cos O - 1 = 0
cos O = 0.2807 , -1.78 ( -1.78 cannot be a solution)
O = 74 degrees (from 0.2807) another solution is 360-74 = 286 degrees
Its D
