Answer:
x=-7 x=4
Step-by-step explanation:
(x −2)(x + 5) = 18
Foil
x^2 +5x-2x-10 = 18
Combine like terms
x^2 +3x -10 =18
Subtract 18 from each side
x^2 +3x -28 = 0
Factor
What two numbers multiply to -28 and add to 3: 7 and -4
(x+7) (x-4) =0
Using the zero product property
x+7=0 x-4 =0
x=-7 x=4
Answer:
=19.81 in²
Step-by-step explanation:
We use the sine formula to find the area of the triangle in question.
In this formula we find the product of two adjoined sides with the sine of the angle between them.
The sides b and c are bound by the angle A.
Therefore area=1/2bcSin A
A=1/2×13.2 in×5.3 in× Sin 34.5
=19.81 in²
6+6=12 6*2=12 8+4=12 3*4=12
Answer:
a= -2/3 b+/35/3 b=
Step-by-step explanation:
For a to find the answer you:
Step 1: Add -2b to both sides.
3a+2b+−2b=35+−2b
3a=−2b+35
Step 2: Divide both sides by 3.
3a
3
=
−2b+35
3
a=
−2
3
b+
35
3
Answer:
a=
−2
3
b+
35
3
For b to find the answer:
3a+2b=35
Step 1: Add -3a to both sides.
3a+2b+−3a=35+−3a
2b=−3a+35
Step 2: Divide both sides by 2.
2b
2
=
−3a+35
2
b=
−3
2
a+
35
2