Answer:
falso
Step-by-step explanation:
12=48234784
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identities
• sin²x + cos²x = 1
• cot x = , csc x =
Consider the left side
-
Expressing as a single fraction
=
Expand and simplify numerator/ denominator
=
=
= ×
= 4cotxcscx = right side ⇒ verified
Jimmy will receive -18 marks in the mathematics competition.
3*10=30
-8*6=-48
30+-48=-18
The answer is 81. since (-3)^2 is 9. Therefore, 9x9=81.
1.a. correct
1.b.
1.c. correct
1.d.
2.a. 7 - x + 3w - 9
Terms: 7, -x, 3w, -9
Variables: x, w
Coefficients: -1, 3
Constants: 7, -9
2.b. -g + 8k - 3 - 7
Terms: -g, 8k, -3, -7
Variables: g, k
Coefficients: -1, 8
Constants: -3, -7
3.a. correct
3.b. correct
3.c. -5+ 4x = -x
4.a. 4(2x + 3) = 8x + 12
4.b. -2(3x + 4) = -6x - 8
4.c. -5(2x - 3) = -10x + 15