Answer:
C
Step-by-step explanation:
Given
x³ + 3x² + 3x + 9 ( factor first/second and third/fourth terms )
= x²(x + 3) + 3(x + 3) ← factor out (x + 3) from each term
= (x² + 3)(x + 3) → C
Answer:
<h2>
100, -50, 25, -12.5, 6.25, -3.125, 1.5625, -0.78125</h2>
Step-by-step explanation:
Each term is being multiplied by <u>-0.5</u>
How did I know?
Divide the second term by the first.
-50 divided by 100 = -1/2
Find the last four terms.
-12.5 x -1/2 =<em> </em><u><em>6.25</em></u>
6.25 x -1/2 = <u><em>-3.125</em></u>
-3.125 x -1/2 = <u>1.5625</u>
1.5625 x -1/2 =<em><u> -0.78125</u></em>
If f= {(2, 3), (5,7), (3, 3), (5, 4), (9, 1)), what is the range?
Scilla [17]
<h3>
Answer: {1,3,4,7} which is choice D</h3>
To list out the range, you list the y coordinate values of each point of the function. Each point is of the form (x,y). Any duplicate values are tossed out when we talk about a set. All we care about are the unique values. It's common practice to sort the values of the set from smallest to largest.
Side note: Choice A is listing the x values of each point, which is the domain.
Answer:
X=5 the angle is 76 degrees
Step-by-step explanation:
The bottom angles are corresponding. So 52+52=104, so you need 76 more degrees. Then simple math to caculate x.
Answer:
x = 0.8 y = 0.6
Step-by-step explanation:
Solve one of the equations for a single variable, I chose the 2nd equation and solved for the variable y and I got y = 2x -1.
Next plug in the value for y into the 1st equation, I got :
2x + 4 ( 2x - 1) = 4
Next solve for x by first distributing the 4 to the (2x-1), this becomes (8x -4) then add like terms and move the -4 to the other side of the equation by addition. I got 10x =8 then I divided 8/10 to solve for x and I got 0.8.
Now plug the value 0.8 in for x in the 2nd equation : 2*(0.8) - y = 1
Then solve for y by subtracting 2*(0.8) or 1.6 from 1 and I got -0.6, lastly divide by -1 to solve for y.
