Answer:
14981yd^2
Step by step:
1) surface area formula: SA=2bs+b^2
s=height
b=square of base
so
SA=2*71*70+71^2
SA=2*71*70+5041
SA=9940+5041
SA=14981
Answer:
630
Step-by-step explanation:
(-21) × (-30)
21×30 Since 2 negatives multiplied to make a positive
Answer is 630
Answer:
x + y = 5
3x + 3y = 15
Step-by-step explanation:
let x represent apple and y represent orange
Hence x + y = 5
and 3x + 3y = 15
Solving both equations simutaneously
From first equation, x = 5-y
Substitute x=5-y into the second equation
3(5-y)+3y = 15
y= 0
x = 5-0 = 5
Answer:
27
Step-by-step explanation:
Tama poyan
27+27=54
#Keep on Learning
The smaller triangle is dilated by scale factor of 1.4

so x will be :

and y will be:

good luck