answer:
1. yes
2. no
3. yes
4. no
step-by-step explanation:
- for 1, yes because no matter what they are the signs are still the same
- for 2, no because the signs have changed — 2/5 is positive now
- yes because even though there is addition now, the signs are the same. when you use kcc (keep change change), the sign changes to +
- no, because the coefficient for p is changed, which won't be true or give us the same result
Well 1+7 =8
And 7+1 are the same digits so 1+7=7+1=8
Hey!
So you have a net of the figure. It's broken into several 2D shapes. What you an do it find the area of each shape and add it together.
Triangles:
A = (b*h)/2
A= (5 * 3) / 2
A = 15/2
same thing for the second one
15/2 * 2 = 15
Don't forget, there are 2 triangles so it's really 15 for both
Rectangles:
A=b*h
A= 7*5
A=35
A=7*5
A=35
A=3*7
A=21
35+35+21=91
Now add the sum of the area of the triangles and the sum of the area of the rectangles
91+15 = 106
106 is the surface area
Hope this helps!
Answer:
The 2 numbers are 22 and 23
Step-by-step explanation:
let the two numbers be x and x+1
according to the question:
(x+1)^2 - x^2 = 45
x^2+1+2x - x^2 = 45
2x + 1 = 45
2x= 44
x = 22
the other number is x+1 = 22+1 = 23
therefore, the two consecutive numbers are 22 and 23
Hope it helped u....
