Answer:
D
Step-by-step explanation:
10/7 = 1.4285
9/y = 1.4285
Multiply both sides by y.
9 = 1.4285y
Divide both sides by y.
6.3 = y
Factor the trinomial
by the box method.
The multiplication gives -24y^2. Now we need to find two factor that gives 5x. It should be creal that this factor are 8y and -3y. Then:
Now we find the common factor for each column and row:
Therefore:
Answer:A=8x^2 + 20x - 100
Step-by-step explanation:
The area of rectangle is:
A= length × width
A= (2x+10)(4x-10)
So now expand the bracket8
A=8x^2 - 20x + 40x - 100
A=8x^2 + 20x - 100
Turn the mixed numbers into improper fractions:
-5 5/8 = - 45/8
-4 7/12 = - 55/12
Remember, when you divide by a fraction, you take its reciprocal and multiply it:
(-48/8) / (-55/12) = (-48/8) x (-12/55)
Simplify the fraction:
72/55
I think this is the answer.
1. 7x+3
2. 8x+19
3. 13x-12
4. 3x-38
5. 6x-1
