Maths question pls answer
2 answers:
Answer:
72cm²
Step-by-step explanation:
perimeter= 2(l+w)
36 = 2(l+w)
36/2 = l+w
18 = l+w
since, l is twice as w
18= 2w + w
18 = 3w (we can add since all the variables, and exponents are same)
18/3 = w
6= w
NOW,
w=6 and l is equal to twice as 6
so l=12
area= l×b
= 12×6 = 72cm²
hope this helps. It was toooo long
Answer:
72
Length=12
Width=6
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A vertical linehas undefined slope because all points on the line have the same x-coordinate.
Answer:
f = 5, x = 3.
Step-by-step explanation:
8x = 24
24 - 9 = 15.
3(5) = 15.
hope this helps.
Answer: I think it’s 5 I’m not sure
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
(f + g)(x) = f(x) + g(x) , thus
f(x) + g(x)
= 2x + 1 + x² - 7 ← collect like terms
= x² + 2x - 6 → C
There are 3 different numbers
slot method
how many 3 digit numbers?
321
312
123
132
213
231
6 numbes
how many 2 digit numbers?
12
21
13
31
23
32
6 numbers
how many 1 digit numbers
1
2
3
3 of them
6+6+3=15
15 different number, yah you ar right
