3(2d - 7) = (2 + 4d)2
distribute
3*2d -3*7 = 2*2 +2*4d
multiply
6d -21 = 4 +8d
subtract 6d from each side
6d-6d-21 = 4 +8d-6d
-21 = 4+2d
subtract 4 from each side
-21 -4 =4+2d-4
-25 =2d
divide by 2
-25/2 =d
Answer:
15 degrees
Step-by-step explanation:
-4 + 4 = 0
4+11=15
Well, is a geometric sequence, the first term's value is -2
to get the subsequent term's value, we'd multiply by "something" so-called the "common ratio"
well, if we simply just divide any of those values by the one before it, the quotient must be the "common ratio".
hmm say for exampl -32/8 = -4 <---- there's our common ratio
The possible ordered pairs to solve this system are (8, 14) and (6, -12).
To solve this, use the second equation, which is already solved for y and put it in for y in the first equation. From that you will simplify and solve for 0 to get:
-x^2 + 14x - 48 = 0
Factor this and solve to get the possible x values as 8 and 6. Then use them in either equation to find the appropriate values for y.
Answer:
the product of 5 and the Cubic root of ( X+7)