Answer:
A = 5x² + 6x + 1
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = 
h (a + b)
where h is the height and a, b the parallel bases, thus
A = (x + 1)(6x - 5 + 4x + 7)
= (10x + 2)(x + 1)
= (5x + 1)(x + 1) ← distribute using FOIL
= 5x² + 6x + 1
Answer:
the answer is you need to add 1 teaspoon of sugar
Step-by-step explanation:
Answer:
82/125 or u can simplify
hope this helps :3
plz mark brainliest i need it X3
Answer:
Q1.
AC is the greatest side, therefore is hypotenuse. AB and BC are legs.
B is 90 deg as the two legs cross at this point.
<u>Ratios:</u>
- sin = opposite / hypotenuse
- cos = adjacent / hypotenuse
- tan = opposite / adjacent
BC is opposite to A and adjacent to C
AB is adjacent to A and opposite to C
- sin A = cos C = 8/10 = 4/5
- cos A = sin C = 6/10 = 3/5
- tan A = cot C = 8/6 = 4/3
- tan C = cot A = 6/8 = 3/4
Q2.
a) Answered above
b) Answered above
Answer:
x = -3/5 or x = 9
Step-by-step explanation:
5x^2=42x+27
Step 1: Subtract 42x+27 from both sides.
5x^2−(42x+27)=42x+27−(42x+27)
5x^2−42x−27=0
Step 2: Factor left side of the equation.
(5x+3)(x−9)=0
Step 3: Set factors equal to 0.
5x+3=0 or x-9=0
