Answer:
4c=4d
-remember to <u>change the </u><u>signs</u><u>/</u><u>symbols</u><u> </u>and do the <u>like terms</u>
<span>4x − 2(5x − 1)
= 4x - 10x + 2
= -6x + 2
= 2 - 6x
answer is TRUE
</span><span>The expression 4x − 2(5x − 1) is equivalent to the expression 2 + 6x</span>
8=2^x
x=3
hope this helps (further explanation in picture)
Answer:
Step-by-step explanation:
Required to prove that:
Sin θ(Sec θ + Cosec θ)= tan θ+1
Steps:
Recall sec θ= 1/cos θ and cosec θ=1/sin θ
Substitution into the Left Hand Side gives:
Sin θ(Sec θ + Cosec θ)
= Sin θ(1/cos θ + 1/sinθ )
Expanding the Brackets
=sinθ/cos θ + sinθ/sinθ
=tanθ+1 which is the Right Hand Side as required.
Note that from trigonometry sinθ/cosθ = tan θ
Answer:
x = -4
Step-by-step explanation:
So we start with the equation -6x - 7 = -1(-9 + 2x)
Then we distribute the -1 to the -9 and the 2x so we get: -6x - 7 = 9 - 2x
Now we make the x-values on one side and the numbers on the other side like this:
-6x + 6x - 7 - 9 = 9 - 2x + 6x - 9
-16 = 4x
Now we divide 4 / -16 which gives us x = -4
-16/4 = 4x/4
x = -4
Your welcome
