Answer:
a + b =1
Step-by-step explanation:
Write the given quadratic as x^2 – 1x – 90 = 0. This factors into
(x - 10)(x + 9) = 0, and so the roots/solutions are {-9, 10}.
If we call -9 "a" and 10 "b," then the sum a + b is -9 + 10, or a + b =1.
Answer:
13x+2+5x-7+3x-4=180
13x+5x+3x=180-2+7+4
21x/21=189/21
X=9
Please put the degrees sign there
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that When n is divided by 21, the remainder is an odd number.
i.e. 
where m is an integer and k a positive integer <21
When n is divided by 28, the remainder is 3
, where c is a positive integer
This can be written as
Since n is giving odd remainder when divided by 21,
we get r =3 as n is a multiple of 7 +3
Answer:
Step-by-step explanation:
A(4,1),B(3,2),C(1,1)
Reflection over y-axis (x,y)→(-x,y)
A'(-4,1),B'(-3,2),C'(-1,1)
Translation 5 units down (x,y)→(x,y-5)
A"(-4,-4),B"(-3,-3),C"(-1,-4)
You and a friend are buying boxes of crayons. Each box of crayons has 2 of the same color, so you decide to split the cost between the 2. y represents the cost of your half of crayons. x represents the number of crayon box halves you buy.
