Answer:
(0,0) means that he didn't buy any apples so it doesn't cost anything
Step-by-step explanation:
Answer:
Triangles always have 180°, split in some manner between the three angles. With two of the three angles given, you can set up a relatively simple equation, where the third angle is assigned to the variable x:
45°+85°+x=180°
130°+x=180°
x=50°
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
Answer:
If you would like to find the equivalent expression to (g*h)(5), you can do this using the following steps:
h(x) = x - 7
g(x) = x^2
(g*h)(x) = g(h(x)) = g(x - 7) = (x - 7)^2
(g*h)(5) = g(h(5)) = g(5 - 7) = (5 - 7)^2 = (-2)^2 = 4
The correct result would be (5 - 7)^2.
Step-by-step explanation:
You could label "today" as "0."
Park every 2 days: 2, 4, 6, 8, 10, 12, 14, (etc.) days
Library every 5 days: 5, 10, 15, 20 (etc.)
You can see that the smallest number of days that must go by before Ben can do both things on one day is 10.
