3 years ago

Pls I need help on this and many more

1 answer:

8 0

10: ac+bc = (a+b)c
7: the sum of the large rectangle is equine to the some of the two smaller rectangles
8: to make sorter and simpler by combining like turns
6: 10x, 5x +5x, 2(x + 5)
9: 2a +3 + a+4, 5x, 6+ 2x+x2+1+x

You might be interested in

Pls help I’ll brainlest and add extra points

Phoenix [80]

Answer:

26. D) $252

27. A) -6.7 + 6.8

Step-by-step explanation:

26. 400 * 0.3 = 120

400 - 120 = 280

280 * 0.1 = 28 (because the 10% is additional, cannot add it to the original 30%)

280 - 28 = 252

27. -4.5 + 4.4 = -0.1

- 6.7 + 6.8 = 0.1

-0.1 + 0.1 = 0

6 0

3 years ago

Solve by factoring, help

zubka84 [21]

Answer:

$x = - 4 \\ x = - 7$

Step-by-step explanation:

$x {}^{2} + 28 = - 11x \\ x {}^{2} + 11x + 28 = 0 \\ x {}^{2} + 7x + 4x + 28 = 0 \\ x(x + 7) + 4(x + 7) = 0 \\ (x + 4)(x + 7) = 0 \\ \\ x = - 4 \: \: \: \: \: \: \\ \: x = - 7$