2 because 1+1=2 and that’s why
Step-by-step explanation:
12 is rounded to 10
22 is rounded to 20
20×10= 200
Answer:
168
Multiply 8 times 3 times 7
Answer:
A= 120ft^2
Step-by-step explanation:
In the smaller triangle the base is 10. The larger is twice as much as that base. So the height must be twice as much as the smaller (6 x 2 = 12)
b=20
h=12
SO..
A= bh/2
20(12)/2
240/2
A=120
Hope this helped!!!
Answer:
1) 2x^2 -8x
2) 18x^2 -45x
Step-by-step explanation:
These problems make use of the distributive property. It tells you how you can use or eliminate parentheses as you may need.
a(b + c) = ab + ac . . . . . . . the outside factor multiplies each inside term
Of course, the usual rules of multiplication of positive and negative numbers apply. If the number of minus signs in a product is odd, the result is negative; otherwise the result is positive.
1. 2x(x -4) = (2x)(x) + (2x)(-4) = 2x^2 -8x
2. -9x(5 -2x) = (-9x)(5) + (-9x)(-2x) = -45x +18x^2 = 18x^2 -45x
3. She used the algebra tiles correctly.
- The headers correctly represent -2x-2 and 2x-1
- Each product has the correct sign (-- = +, -+ or +- = -)
- Each product has the correct power of x
