Answer:
b=-1
Step-by-step explanation:
7b-2/5=6b-7/5
7b+1=6b
-b=1
b=-1
1. 48 ? -8 = -6
48<em>/</em> -8 = -6
2. -40 ? 8 = -5
-40<em>/</em> 8 = -5
3. 12 ? -2 = 14
12 <em>-</em> (-2) = 14
12 + 2 = 14
4. 18 ? -12 = 6
18 <em>+</em> (-12) = 6
18 - 12 = 6
5. 18 ? -20 = -2
18 <em>+</em> (-20) = -2
18 - 20 = -2
6. 22 ? -0.5 = -11
22 <em>*</em> -0.5 = -11
22 / -2 = -11
You just have to check your work :)
15 - natural (1,2,3...15....) and integers (...-2,-1,0, 1,2,...15,...)
Answer:
The distributive property tells us how to solve expressions in the form of a(b + c). The distributive property is sometimes called the distributive law of multiplication and division. ... Then we need to remember to multiply first, before doing the addition!
Step-by-step explanation:
Answer:
The two numbers following 1,-2,3,-4,5... are -6 and 7.
Step-by-step explanation:
index: 1 2 3 4 5 ....
value: 1 -2 3 -4 5
Let the index be n. Then the first term is a(1), the secon is a(2), and so on.
a(2) = 2*(-1)^(2-1) = 2*(-1) = -2 (correct)
a(3) = 3*(-1)^(3-1) = 3*(-1)^2 = 3 (correct)
a(4) = 4*(-1)^(4-1) = 4*(-1)^3 = -4 (correct)
So the general formula for a(n) is: a(n)=n(-1)^(n-1)
Thus,
a(5) = 5(-1)^4 = 5
a(6) = 6(-1)^5 = -6
a(7) = 7(-1)^6 = 7
The "next two numbers in the pattern" are -6 and 7. The first 7 numbers are
1,-2,3,-4,5, -6, 7
